Public competition desk

U.S. competition observatory

A one-page view of concentration across markets, where the evidence is missing, and which firms are connected. Use the underlying sources to investigate questions, not to infer a legal violation from a score.

12 markets45 sources4 HHI gaps

Observatory indexChoose the evidence universe

4 public domains

Research desk

Compare market-power signals

Rank HHI, firm control, reported history, and evidence coverage across the active market slice.

12in view0filters17sources

Refine market sliceSector, geography, concentration, vintage, status, and confidenceAll markets12 in view

Market comparison studio

Where is market power most concentrated?

Compare the filtered market slice by concentration, firm control, reported anchor years, and public evidence coverage.

12 markets in view

Release lens

No carry-forward

8/12 released

HHI view

Markets ranked by HHI

Latest sourced HHI observation per market. Release years remain visible so this mixed-vintage ranking is not mistaken for a same-year comparison.

ModeHHI rankLatest sourced concentration

Release lensLatest available8/12 plotted

Selected marketSearch enginesHigh concentration

Evidence handoffObservation JSONStatCounter Global Stats

Below review line

HHI under 1,800

Review range

HHI 1,800-2,499

High concentration

HHI 2,500+

Selected band

7,359

High concentration

Below 1,8001,800-2,4992,500+SelectedPublic estimates use lighter fill.

Selected market

Search engines

Digital platforms / United States

Estimated Public

HHI

7,359

Release year

2026

Sources

Anchor years

Publisher: StatCounter Global Stats
Latest access: Jul 17, 2026
Confidence: Medium
Release year: 2026

Public-interest route

Prioritize agency reviewHigh HHI: inspect control, entry barriers, and policy record next.

ThresholdHigh concentrationEvidenceEstimated PublicHandoffObservation rows

Markets in this view

Sample guardrail

Relationship chart held: 5 comparable markets; 8 required for a defensible scatter.

Markets plotted

8/12

Latest available releases

Firm-share coverage

6/12

non-aggregate leaders

Longitudinal coverage

6/12

two or more HHI years

Sources in slice

unique public records

Sector action matrix

Rank sectors by review urgency and route the next action.

Average HHI, data gaps, and review thresholds remain visible as separate inputs. Use the plane to enter the chart workspace; the ranked rows route directly to evidence or public action.

Full structure view

First review queueDigital platformsAgency review

Review sectors4above HHI review threshold

Disclosure gaps4incomplete public rows

Profiles covered128 sectors in view

Priority plane

Concentration to the right. Evidence gaps rise upward.Plotting the same sector ledger as a map makes the agency-review queue visible before the table: bubbles scale by profile coverage and link into the chart workspace.