{"license":"https://creativecommons.org/licenses/by/4.0/","dataset":"trend-series","count":26,"filters":{"display":"absolute","from":2017,"metric":"hhi","markets":["us-mobile-wireless-service","us-fixed-broadband-access","us-airline-domestic-passengers","us-rental-housing-access","us-search-engine-usage","us-browser-usage","us-pharmacy-benefit-management","us-ai-assistant-usage","us-steer-heifer-meatpacking-purchases","us-mobile-operating-system-usage","us-social-media-referral-traffic","us-aca-individual-health-insurance"],"to":2026},"summary":{"anchorCount":26,"chartEligibleCount":26,"definitionBlockedCount":0,"marketCount":8,"metricCount":1,"sourceCount":8},"events":[{"agency":"U.S. Department of Justice","eventDate":"2019-07-26","eventType":"settlement","id":"evt-wireless-merger-settlement-2019","marketIds":["mkt-wireless"],"sourceId":"doj-tmobile-sprint-settlement-2019","stage":"remedy","title":"T-Mobile-Sprint settlement requires divestitures to support wireless entry","year":2019},{"agency":"U.S. Department of Justice","eventDate":"2020-10-20","eventType":"complaint","id":"evt-google-search-complaint-2020","marketIds":["mkt-search","mkt-browser"],"sourceId":"doj-google-search-case-2020","stage":"litigation","title":"United States files search monopolization complaint against Google","year":2020},{"agency":"U.S. District Court for the District of Massachusetts","eventDate":"2024-01-16","eventType":"decision","id":"evt-airlines-jetblue-spirit-decision-2024","marketIds":["mkt-airlines"],"sourceId":"doj-jetblue-spirit-ruling-2024","stage":"decision","title":"Court blocks JetBlue's proposed acquisition of Spirit Airlines","year":2024},{"agency":"Federal Trade Commission","eventDate":"2024-07-09","eventType":"report","id":"evt-pbm-interim-report-2024","marketIds":["mkt-pbm"],"sourceId":"ftc-pbm-interim-2024","stage":"monitoring","title":"FTC releases interim staff report on prescription drug middlemen","year":2024},{"agency":"U.S. District Court for the District of Columbia","eventDate":"2024-08-05","eventType":"decision","id":"evt-google-search-liability-2024","marketIds":["mkt-search","mkt-browser"],"sourceId":"doj-google-search-case-2020","stage":"decision","title":"Court finds Google liable for unlawful search monopoly maintenance","year":2024},{"agency":"U.S. Department of Justice","eventDate":"2024-08-23","eventType":"complaint","id":"evt-realpage-complaint-2024","marketIds":["mkt-housing"],"sourceId":"doj-realpage-case-2024","stage":"litigation","title":"DOJ and states sue RealPage over rental pricing practices","year":2024},{"agency":"Federal Trade Commission","eventDate":"2024-09-20","eventType":"complaint","id":"evt-pbm-insulin-complaint-2024","marketIds":["mkt-pbm"],"sourceId":"ftc-pbm-insulin-complaint-2024","stage":"litigation","title":"FTC files administrative complaint against the three largest PBMs","year":2024},{"agency":"U.S. Department of Justice and U.S. Department of Transportation","eventDate":"2024-10-24","eventType":"inquiry","id":"evt-airlines-competition-inquiry-2024","marketIds":["mkt-airlines"],"sourceId":"doj-air-travel-inquiry-2024","stage":"investigation","title":"DOJ and DOT launch broad inquiry into competition in air travel","year":2024},{"agency":"Federal Communications Commission","eventDate":"2024-12-31","eventType":"report","id":"evt-wireless-marketplace-report-2024","marketIds":["mkt-wireless"],"sourceId":"fcc-2024-cmr","stage":"monitoring","title":"FCC releases 2024 Communications Marketplace Report","year":2024},{"agency":"Federal Trade Commission","eventDate":"2025-01-17","eventType":"report","id":"evt-ai-partnerships-report-2025","marketIds":["mkt-ai-chatbot"],"sourceId":"ftc-ai-partnerships-report-2025","stage":"monitoring","title":"FTC reports on cloud-provider and generative AI partnerships","year":2025},{"agency":"U.S. District Court for the District of Columbia","eventDate":"2025-09-02","eventType":"remedy","id":"evt-google-search-remedies-2025","marketIds":["mkt-search","mkt-browser","mkt-ai-chatbot"],"sourceId":"doj-google-search-remedies-2025","stage":"remedy","title":"Court orders search distribution and data-access remedies","year":2025},{"agency":"U.S. Department of Justice","eventDate":"2025-11-24","eventType":"settlement","id":"evt-realpage-proposed-settlement-2025","marketIds":["mkt-housing"],"sourceId":"doj-realpage-settlement-2025","stage":"remedy","title":"DOJ files proposed settlement with RealPage","year":2025},{"agency":"Federal Trade Commission","eventDate":"2026-02-04","eventType":"settlement","id":"evt-pbm-express-scripts-settlement-2026","marketIds":["mkt-pbm"],"sourceId":"ftc-express-scripts-settlement-2026","stage":"remedy","title":"FTC announces proposed consent agreement with Express Scripts","year":2026},{"agency":"Federal Trade Commission","eventDate":"2026-07-14","eventType":"settlement","id":"evt-pbm-caremark-settlement-2026","marketIds":["mkt-pbm"],"sourceId":"ftc-caremark-settlement-2026","stage":"remedy","title":"FTC announces proposed consent agreement with Caremark","year":2026}],"guardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract.","rows":[{"marketId":"mkt-wireless","marketSlug":"us-mobile-wireless-service","marketName":"Wireless service","sector":"Telecommunications","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2017,"value":3106,"displayMode":"absolute","displayValue":3106,"baselineYear":2017,"baselineValue":3106,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"agency_reported_hhi","measurementBasis":"FCC source-reported HHI by economic area","dataStatus":"verified","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"fcc-2024-cmr","sourceName":"2024 Communications Marketplace Report","sourcePublisher":"Federal Communications Commission","sourceUrl":"https://docs.fcc.gov/public/attachments/FCC-24-136A1.pdf","methodologyNote":"Use FCC source-reported weighted average HHI; do not infer carrier shares.","notes":"Historical comparison value reported in the FCC 2024 report.","marketHref":"/markets/us-mobile-wireless-service","explorerHref":"/trends?markets=us-mobile-wireless-service&metric=hhi&from=2017&to=2017","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-wireless","marketSlug":"us-mobile-wireless-service","marketName":"Wireless service","sector":"Telecommunications","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2021,"value":3596,"displayMode":"absolute","displayValue":3596,"baselineYear":2017,"baselineValue":3106,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"agency_reported_hhi","measurementBasis":"FCC source-reported HHI by economic area","dataStatus":"verified","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"fcc-2024-cmr","sourceName":"2024 Communications Marketplace Report","sourcePublisher":"Federal Communications Commission","sourceUrl":"https://docs.fcc.gov/public/attachments/FCC-24-136A1.pdf","methodologyNote":"Use FCC source-reported weighted average HHI; do not infer carrier shares.","notes":"Historical comparison value reported in the FCC 2024 report.","marketHref":"/markets/us-mobile-wireless-service","explorerHref":"/trends?markets=us-mobile-wireless-service&metric=hhi&from=2021&to=2021","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-wireless","marketSlug":"us-mobile-wireless-service","marketName":"Wireless service","sector":"Telecommunications","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2023,"value":3550,"displayMode":"absolute","displayValue":3550,"baselineYear":2017,"baselineValue":3106,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"agency_reported_hhi","measurementBasis":"FCC source-reported HHI by economic area","dataStatus":"verified","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"fcc-2024-cmr","sourceName":"2024 Communications Marketplace Report","sourcePublisher":"Federal Communications Commission","sourceUrl":"https://docs.fcc.gov/public/attachments/FCC-24-136A1.pdf","methodologyNote":"Use FCC source-reported weighted average HHI; do not infer carrier shares.","notes":"Latest value in the FCC 2024 report.","marketHref":"/markets/us-mobile-wireless-service","explorerHref":"/trends?markets=us-mobile-wireless-service&metric=hhi&from=2023&to=2023","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-fixed-broadband","marketSlug":"us-fixed-broadband-access","marketName":"Fixed broadband","sector":"Telecommunications","geography":"United States / separately reported state, county, and census-tract summaries","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2020,"value":1171,"displayMode":"absolute","displayValue":1171,"baselineYear":2020,"baselineValue":1171,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"agency_reported_hhi","measurementBasis":"FCC source-reported provider-share HHI for qualifying residential fixed connections","dataStatus":"verified","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"fcc-internet-access-dec-2024","sourceName":"Internet Access Services: Status as of December 31 2024","sourcePublisher":"Federal Communications Commission","sourceUrl":"https://docs.fcc.gov/public/attachments/DOC-418459A1.pdf","methodologyNote":"Use the source-reported December national HHI as the annual market-profile anchor; retain subnational medians in the linked geographic series.","notes":"National row from the same 36-record FCC release used by the geographic resolution ladder.","marketHref":"/markets/us-fixed-broadband-access","explorerHref":"/trends?markets=us-fixed-broadband-access&metric=hhi&from=2020&to=2020","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-fixed-broadband","marketSlug":"us-fixed-broadband-access","marketName":"Fixed broadband","sector":"Telecommunications","geography":"United States / separately reported state, county, and census-tract summaries","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2021,"value":1199,"displayMode":"absolute","displayValue":1199,"baselineYear":2020,"baselineValue":1171,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"agency_reported_hhi","measurementBasis":"FCC source-reported provider-share HHI for qualifying residential fixed connections","dataStatus":"verified","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"fcc-internet-access-dec-2024","sourceName":"Internet Access Services: Status as of December 31 2024","sourcePublisher":"Federal Communications Commission","sourceUrl":"https://docs.fcc.gov/public/attachments/DOC-418459A1.pdf","methodologyNote":"Use the source-reported December national HHI as the annual market-profile anchor; retain subnational medians in the linked geographic series.","notes":"National row from the same 36-record FCC release used by the geographic resolution ladder.","marketHref":"/markets/us-fixed-broadband-access","explorerHref":"/trends?markets=us-fixed-broadband-access&metric=hhi&from=2021&to=2021","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-fixed-broadband","marketSlug":"us-fixed-broadband-access","marketName":"Fixed broadband","sector":"Telecommunications","geography":"United States / separately reported state, county, and census-tract summaries","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2022,"value":1287,"displayMode":"absolute","displayValue":1287,"baselineYear":2020,"baselineValue":1171,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"agency_reported_hhi","measurementBasis":"FCC source-reported provider-share HHI for qualifying residential fixed connections","dataStatus":"verified","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"fcc-internet-access-dec-2024","sourceName":"Internet Access Services: Status as of December 31 2024","sourcePublisher":"Federal Communications Commission","sourceUrl":"https://docs.fcc.gov/public/attachments/DOC-418459A1.pdf","methodologyNote":"Use the source-reported December national HHI as the annual market-profile anchor; retain subnational medians in the linked geographic series.","notes":"National row from the same 36-record FCC release used by the geographic resolution ladder.","marketHref":"/markets/us-fixed-broadband-access","explorerHref":"/trends?markets=us-fixed-broadband-access&metric=hhi&from=2022&to=2022","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-fixed-broadband","marketSlug":"us-fixed-broadband-access","marketName":"Fixed broadband","sector":"Telecommunications","geography":"United States / separately reported state, county, and census-tract summaries","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2023,"value":1195,"displayMode":"absolute","displayValue":1195,"baselineYear":2020,"baselineValue":1171,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"agency_reported_hhi","measurementBasis":"FCC source-reported provider-share HHI for qualifying residential fixed connections","dataStatus":"verified","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"fcc-internet-access-dec-2024","sourceName":"Internet Access Services: Status as of December 31 2024","sourcePublisher":"Federal Communications Commission","sourceUrl":"https://docs.fcc.gov/public/attachments/DOC-418459A1.pdf","methodologyNote":"Use the source-reported December national HHI as the annual market-profile anchor; retain subnational medians in the linked geographic series.","notes":"National row from the same 36-record FCC release used by the geographic resolution ladder.","marketHref":"/markets/us-fixed-broadband-access","explorerHref":"/trends?markets=us-fixed-broadband-access&metric=hhi&from=2023&to=2023","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-fixed-broadband","marketSlug":"us-fixed-broadband-access","marketName":"Fixed broadband","sector":"Telecommunications","geography":"United States / separately reported state, county, and census-tract summaries","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2024,"value":1501,"displayMode":"absolute","displayValue":1501,"baselineYear":2020,"baselineValue":1171,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"agency_reported_hhi","measurementBasis":"FCC source-reported provider-share HHI for qualifying residential fixed connections","dataStatus":"verified","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"fcc-internet-access-dec-2024","sourceName":"Internet Access Services: Status as of December 31 2024","sourcePublisher":"Federal Communications Commission","sourceUrl":"https://docs.fcc.gov/public/attachments/DOC-418459A1.pdf","methodologyNote":"Use the source-reported December national HHI as the annual market-profile anchor; retain subnational medians in the linked geographic series.","notes":"Latest national row from the same 36-record FCC release used by the geographic resolution ladder.","marketHref":"/markets/us-fixed-broadband-access","explorerHref":"/trends?markets=us-fixed-broadband-access&metric=hhi&from=2024&to=2024","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-search","marketSlug":"us-search-engine-usage","marketName":"Search engines","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2023,"value":7950,"displayMode":"absolute","displayValue":7950,"baselineYear":2023,"baselineValue":7950,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter search engine referral usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares_with_residual_other","leaderName":"Google Search","participantCount":7,"shareCoverage":100,"sourceId":"statcounter-search-us-2026","sourceName":"Search engine market share in United States of America April 2023","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=search_engine&region_hidden=US&granularity=monthly&statType=Search%20Engine&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from six named StatCounter shares and a residual Other category that closes coverage to 100 percent.","notes":"April snapshot from a monthly referral-share series; this is a public web-analytics proxy and not search-query or advertising-revenue share.","marketHref":"/markets/us-search-engine-usage","explorerHref":"/trends?markets=us-search-engine-usage&metric=hhi&from=2023&to=2023","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-search","marketSlug":"us-search-engine-usage","marketName":"Search engines","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2024,"value":7575,"displayMode":"absolute","displayValue":7575,"baselineYear":2023,"baselineValue":7950,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter search engine referral usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares_with_residual_other","leaderName":"Google Search","participantCount":7,"shareCoverage":100,"sourceId":"statcounter-search-us-2026","sourceName":"Search engine market share in United States of America April 2024","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=search_engine&region_hidden=US&granularity=monthly&statType=Search%20Engine&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from six named StatCounter shares and a residual Other category that closes coverage to 100 percent.","notes":"April snapshot from a monthly referral-share series; this is a public web-analytics proxy and not search-query or advertising-revenue share.","marketHref":"/markets/us-search-engine-usage","explorerHref":"/trends?markets=us-search-engine-usage&metric=hhi&from=2024&to=2024","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-search","marketSlug":"us-search-engine-usage","marketName":"Search engines","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2025,"value":7589,"displayMode":"absolute","displayValue":7589,"baselineYear":2023,"baselineValue":7950,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter search engine referral usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares_with_residual_other","leaderName":"Google Search","participantCount":7,"shareCoverage":100,"sourceId":"statcounter-search-us-2026","sourceName":"Search engine market share in United States of America April 2025","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=search_engine&region_hidden=US&granularity=monthly&statType=Search%20Engine&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from six named StatCounter shares and a residual Other category that closes coverage to 100 percent.","notes":"April snapshot from a monthly referral-share series; this is a public web-analytics proxy and not search-query or advertising-revenue share.","marketHref":"/markets/us-search-engine-usage","explorerHref":"/trends?markets=us-search-engine-usage&metric=hhi&from=2025&to=2025","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-search","marketSlug":"us-search-engine-usage","marketName":"Search engines","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2026,"value":7359,"displayMode":"absolute","displayValue":7359,"baselineYear":2023,"baselineValue":7950,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter search engine referral usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares_with_residual_other","leaderName":"Google Search","participantCount":7,"shareCoverage":100,"sourceId":"statcounter-search-us-2026","sourceName":"Search engine market share in United States of America April 2026","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/search-engine-market-share/all/united-states-of-america","methodologyNote":"HHI is computed from listed StatCounter percentages and a small residual Other category equal to 100 minus listed shares.","notes":"Usage share is a public web-analytics proxy and not search-advertising revenue.","marketHref":"/markets/us-search-engine-usage","explorerHref":"/trends?markets=us-search-engine-usage&metric=hhi&from=2026&to=2026","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-browser","marketSlug":"us-browser-usage","marketName":"Browsers","sector":"Software","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2023,"value":3664,"displayMode":"absolute","displayValue":3664,"baselineYear":2023,"baselineValue":3664,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter browser page-view usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares_with_residual_other","leaderName":"Chrome","participantCount":7,"shareCoverage":100,"sourceId":"statcounter-browser-us-2026","sourceName":"Browser market share in United States of America April 2023","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=browser&region_hidden=US&granularity=monthly&statType=Browser&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from six named StatCounter shares and a residual Other category that closes coverage to 100 percent.","notes":"April snapshot from a monthly page-view series; this is a public web-analytics proxy rather than browser users or revenue.","marketHref":"/markets/us-browser-usage","explorerHref":"/trends?markets=us-browser-usage&metric=hhi&from=2023&to=2023","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-browser","marketSlug":"us-browser-usage","marketName":"Browsers","sector":"Software","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2024,"value":3846,"displayMode":"absolute","displayValue":3846,"baselineYear":2023,"baselineValue":3664,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter browser page-view usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares_with_residual_other","leaderName":"Chrome","participantCount":7,"shareCoverage":100,"sourceId":"statcounter-browser-us-2026","sourceName":"Browser market share in United States of America April 2024","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=browser&region_hidden=US&granularity=monthly&statType=Browser&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from six named StatCounter shares and a residual Other category that closes coverage to 100 percent.","notes":"April snapshot from a monthly page-view series; this is a public web-analytics proxy rather than browser users or revenue.","marketHref":"/markets/us-browser-usage","explorerHref":"/trends?markets=us-browser-usage&metric=hhi&from=2024&to=2024","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-browser","marketSlug":"us-browser-usage","marketName":"Browsers","sector":"Software","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2025,"value":3720,"displayMode":"absolute","displayValue":3720,"baselineYear":2023,"baselineValue":3664,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter browser page-view usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares_with_residual_other","leaderName":"Chrome","participantCount":7,"shareCoverage":100,"sourceId":"statcounter-browser-us-2026","sourceName":"Browser market share in United States of America April 2025","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=browser&region_hidden=US&granularity=monthly&statType=Browser&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from six named StatCounter shares and a residual Other category that closes coverage to 100 percent.","notes":"April snapshot from a monthly page-view series; this is a public web-analytics proxy rather than browser users or revenue.","marketHref":"/markets/us-browser-usage","explorerHref":"/trends?markets=us-browser-usage&metric=hhi&from=2025&to=2025","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-browser","marketSlug":"us-browser-usage","marketName":"Browsers","sector":"Software","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2026,"value":3612,"displayMode":"absolute","displayValue":3612,"baselineYear":2023,"baselineValue":3664,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter browser page-view usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares_with_residual_other","leaderName":"Chrome","participantCount":7,"shareCoverage":100,"sourceId":"statcounter-browser-us-2026","sourceName":"Browser market share in United States of America April 2026","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/browser-market-share/all/united-states-of-america","methodologyNote":"HHI is computed from listed StatCounter percentages and a residual Other category equal to 100 minus listed shares.","notes":"Usage share is a public web-analytics proxy.","marketHref":"/markets/us-browser-usage","explorerHref":"/trends?markets=us-browser-usage&metric=hhi&from=2026&to=2026","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-ai-chatbot","marketSlug":"us-ai-assistant-usage","marketName":"AI assistants","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2026,"value":4804,"displayMode":"absolute","displayValue":4804,"baselineYear":2026,"baselineValue":4804,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"snapshot_only","metricFamily":"usage_shares","measurementBasis":"StatCounter all-platform AI chatbot usage share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"ChatGPT","participantCount":6,"shareCoverage":100,"sourceId":"statcounter-ai-chatbot-us-2026","sourceName":"AI chatbot market share in United States of America May 2026","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/ai-chatbot-market-share/all/united-states-of-america","methodologyNote":"HHI is computed from listed StatCounter percentages, which sum to 100 across tracked assistants.","notes":"Usage share is a public web-analytics proxy and not AI revenue or total user counts.","marketHref":"/markets/us-ai-assistant-usage","explorerHref":"/trends?markets=us-ai-assistant-usage&metric=hhi&from=2026&to=2026","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-mobile-os","marketSlug":"us-mobile-operating-system-usage","marketName":"Mobile operating systems","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2023,"value":5157,"displayMode":"absolute","displayValue":5157,"baselineYear":2023,"baselineValue":5157,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter mobile operating-system page-view share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"iOS","participantCount":9,"shareCoverage":99.99,"sourceId":"statcounter-mobile-os-us-2026","sourceName":"Mobile operating system market share in United States of America April 2023","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Mobile&device_hidden=mobile&statType_hidden=os&region_hidden=US&granularity=monthly&statType=Operating%20System&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from every category in the pinned StatCounter April mobile operating-system row; source labels and rounding are preserved.","notes":"Page-view usage is a public web-analytics proxy, not device sales, installed base, users, revenue, or a legal market.","marketHref":"/markets/us-mobile-operating-system-usage","explorerHref":"/trends?markets=us-mobile-operating-system-usage&metric=hhi&from=2023&to=2023","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-mobile-os","marketSlug":"us-mobile-operating-system-usage","marketName":"Mobile operating systems","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2024,"value":5055,"displayMode":"absolute","displayValue":5055,"baselineYear":2023,"baselineValue":5157,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter mobile operating-system page-view share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"iOS","participantCount":9,"shareCoverage":100,"sourceId":"statcounter-mobile-os-us-2026","sourceName":"Mobile operating system market share in United States of America April 2024","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Mobile&device_hidden=mobile&statType_hidden=os&region_hidden=US&granularity=monthly&statType=Operating%20System&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from every category in the pinned StatCounter April mobile operating-system row; source labels and rounding are preserved.","notes":"Page-view usage is a public web-analytics proxy, not device sales, installed base, users, revenue, or a legal market.","marketHref":"/markets/us-mobile-operating-system-usage","explorerHref":"/trends?markets=us-mobile-operating-system-usage&metric=hhi&from=2024&to=2024","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-mobile-os","marketSlug":"us-mobile-operating-system-usage","marketName":"Mobile operating systems","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2025,"value":5094,"displayMode":"absolute","displayValue":5094,"baselineYear":2023,"baselineValue":5157,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter mobile operating-system page-view share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"iOS","participantCount":9,"shareCoverage":99.99,"sourceId":"statcounter-mobile-os-us-2026","sourceName":"Mobile operating system market share in United States of America April 2025","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Mobile&device_hidden=mobile&statType_hidden=os&region_hidden=US&granularity=monthly&statType=Operating%20System&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from every category in the pinned StatCounter April mobile operating-system row; source labels and rounding are preserved.","notes":"Page-view usage is a public web-analytics proxy, not device sales, installed base, users, revenue, or a legal market.","marketHref":"/markets/us-mobile-operating-system-usage","explorerHref":"/trends?markets=us-mobile-operating-system-usage&metric=hhi&from=2025&to=2025","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-mobile-os","marketSlug":"us-mobile-operating-system-usage","marketName":"Mobile operating systems","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2026,"value":5337,"displayMode":"absolute","displayValue":5337,"baselineYear":2023,"baselineValue":5157,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter mobile operating-system page-view share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"iOS","participantCount":9,"shareCoverage":100,"sourceId":"statcounter-mobile-os-us-2026","sourceName":"Mobile operating system market share in United States of America April 2026","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Mobile&device_hidden=mobile&statType_hidden=os&region_hidden=US&granularity=monthly&statType=Operating%20System&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from every category in the pinned StatCounter April mobile operating-system row; source labels and rounding are preserved.","notes":"Page-view usage is a public web-analytics proxy, not device sales, installed base, users, revenue, or a legal market.","marketHref":"/markets/us-mobile-operating-system-usage","explorerHref":"/trends?markets=us-mobile-operating-system-usage&metric=hhi&from=2026&to=2026","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-social-referral","marketSlug":"us-social-media-referral-traffic","marketName":"Social referrals","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2023,"value":3393,"displayMode":"absolute","displayValue":3393,"baselineYear":2023,"baselineValue":3393,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter all-platform social-media referral share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"Facebook","participantCount":12,"shareCoverage":100.01,"sourceId":"statcounter-social-referral-us-2026","sourceName":"Social media referral share in United States of America April 2023","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=social_media&region_hidden=US&granularity=monthly&statType=Social%20Media&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from every category in the pinned StatCounter April social-media row; the denominator is outbound referral traffic to sampled third-party websites.","notes":"Referral share is not platform audience, engagement, time spent, advertising revenue, or a legal market.","marketHref":"/markets/us-social-media-referral-traffic","explorerHref":"/trends?markets=us-social-media-referral-traffic&metric=hhi&from=2023&to=2023","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-social-referral","marketSlug":"us-social-media-referral-traffic","marketName":"Social referrals","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2024,"value":2838,"displayMode":"absolute","displayValue":2838,"baselineYear":2023,"baselineValue":3393,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter all-platform social-media referral share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"Facebook","participantCount":12,"shareCoverage":99.99,"sourceId":"statcounter-social-referral-us-2026","sourceName":"Social media referral share in United States of America April 2024","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=social_media&region_hidden=US&granularity=monthly&statType=Social%20Media&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from every category in the pinned StatCounter April social-media row; the denominator is outbound referral traffic to sampled third-party websites.","notes":"Referral share is not platform audience, engagement, time spent, advertising revenue, or a legal market.","marketHref":"/markets/us-social-media-referral-traffic","explorerHref":"/trends?markets=us-social-media-referral-traffic&metric=hhi&from=2024&to=2024","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-social-referral","marketSlug":"us-social-media-referral-traffic","marketName":"Social referrals","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2025,"value":3804,"displayMode":"absolute","displayValue":3804,"baselineYear":2023,"baselineValue":3393,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter all-platform social-media referral share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"Facebook","participantCount":12,"shareCoverage":100.02,"sourceId":"statcounter-social-referral-us-2026","sourceName":"Social media referral share in United States of America April 2025","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=social_media&region_hidden=US&granularity=monthly&statType=Social%20Media&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from every category in the pinned StatCounter April social-media row; the denominator is outbound referral traffic to sampled third-party websites.","notes":"Referral share is not platform audience, engagement, time spent, advertising revenue, or a legal market.","marketHref":"/markets/us-social-media-referral-traffic","explorerHref":"/trends?markets=us-social-media-referral-traffic&metric=hhi&from=2025&to=2025","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-social-referral","marketSlug":"us-social-media-referral-traffic","marketName":"Social referrals","sector":"Digital platforms","geography":"United States","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2026,"value":4995,"displayMode":"absolute","displayValue":4995,"baselineYear":2023,"baselineValue":3393,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"comparable_anchors","metricFamily":"usage_shares","measurementBasis":"StatCounter all-platform social-media referral share","dataStatus":"estimated_public","confidenceLevel":"medium","calculationMethod":"computed_from_public_shares","leaderName":"Facebook","participantCount":12,"shareCoverage":100,"sourceId":"statcounter-social-referral-us-2026","sourceName":"Social media referral share in United States of America April 2026","sourcePublisher":"StatCounter Global Stats","sourceUrl":"https://gs.statcounter.com/chart.php?device=Desktop%20%26%20Mobile%20%26%20Tablet%20%26%20Console&device_hidden=desktop%2Bmobile%2Btablet%2Bconsole&multi-device=true&statType_hidden=social_media&region_hidden=US&granularity=monthly&statType=Social%20Media&region=United%20States%20of%20America&fromInt=202304&toInt=202604&fromMonthYear=2023-04&toMonthYear=2026-04&csv=1","methodologyNote":"HHI is computed from every category in the pinned StatCounter April social-media row; the denominator is outbound referral traffic to sampled third-party websites.","notes":"Referral share is not platform audience, engagement, time spent, advertising revenue, or a legal market.","marketHref":"/markets/us-social-media-referral-traffic","explorerHref":"/trends?markets=us-social-media-referral-traffic&metric=hhi&from=2026&to=2026","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."},{"marketId":"mkt-individual-insurance","marketSlug":"us-aca-individual-health-insurance","marketName":"Individual insurance","sector":"Health insurance","geography":"United States / separately reported state and District of Columbia markets","metric":"hhi","metricLabel":"Herfindahl-Hirschman Index","metricUnit":"index","year":2024,"value":3650,"displayMode":"absolute","displayValue":3650,"baselineYear":2024,"baselineValue":3650,"chartEligible":true,"exclusion":null,"crossMarketUse":"screen_only","timeSeriesUse":"snapshot_only","metricFamily":"source_reported_hhi","measurementBasis":"KFF source-reported HHI, leading-insurer share, and count of insurers above 5 percent","dataStatus":"estimated_public","confidenceLevel":"high","calculationMethod":"source_reported_hhi","leaderName":null,"participantCount":null,"shareCoverage":null,"sourceId":"kff-individual-insurance-market-2024","sourceName":"Individual Insurance Market Competition (HHI by state)","sourcePublisher":"KFF","sourceUrl":"https://www.kff.org/state-health-policy-data/state-indicator/individual-insurance-market-competition/","methodologyNote":"Use the KFF source-reported national HHI as a bounded profile anchor and retain the separately reported jurisdiction measures in the linked geography system.","notes":"The public packet does not identify insurer names or common control in each jurisdiction and does not cover employer insurance, Medicare, Medicaid, or every insurance product.","marketHref":"/markets/us-aca-individual-health-insurance","explorerHref":"/trends?markets=us-aca-individual-health-insurance&metric=hhi&from=2024&to=2024","interpretationGuardrail":"Anchor observations are not interpolated annual estimates. Cross-market use remains governed by each market definition contract."}]}