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Canonical indicator / hsr-transactions

HSR transactions reported

Federal premerger transactions reported by fiscal year.

Federal merger activityTransactionsFederal fiscal yearFY2016-FY2025

FY2025 latest

2,006+174 from FY2016
Observations
10
1 bounded entity
Coverage
2016-2025
10 observed periods
Sources
1
Federal Trade Commission and U.S. Department of Justice
Exact pair
r -0.680
10 entity-period matches

01 / Measurement contract

Definition before comparison

The unit, universe, period, and source boundary travel with every observation.

What this series measures

Federal premerger transactions reported by fiscal year.

HSR transactions are federal premerger notifications, not a census of every U.S. merger. Second Requests are review-stage counts, not findings that a transaction was anticompetitive.
Indicator ID
hsr-transactions
Unit
Transactions
Observation dimension
Fiscal year
Grouping field
No separate grouping field
Period basis
Federal fiscal year
Ranking contract
Compare observed periods within one bounded series

02 / Observed variation

Fiscal-year range and trajectory

FY2016-FY2025; absent and withheld values do not enter the distribution.

Minimum
1,637
25th percentile
1,875.5
Median
2,041.5
75th percentile
2,105.5
Maximum
3,520

Observed variation

Each view keeps the same indicator, unit, and evidence boundary.
Selected interval2,013.6 to 2,201.94 observations / 40.0% of the snapshot
Ranked reference rowsTransactions
  1. 01FY2021U.S. HSR program3,520
  2. 02FY2022U.S. HSR program3,152
  3. 03FY2018U.S. HSR program2,111
  4. 04FY2019U.S. HSR program2,089
  5. 05FY2017U.S. HSR program2,052
  6. 06FY2024U.S. HSR program2,031
  7. 07FY2025U.S. HSR program2,006
  8. 08FY2016U.S. HSR program1,832
  9. 09FY2023U.S. HSR program1,805
  10. 10FY2020U.S. HSR program1,637

03 / Coverage and quality

Where the series has evidence

Observed rows are counted explicitly by period, group, verification status, and confidence level.

Period ledger10 observed periods
FY20161 entity11 source
FY20171 entity11 source
FY20181 entity11 source
FY20191 entity11 source
FY20201 entity11 source
FY20211 entity11 source
FY20221 entity11 source
FY20231 entity11 source
FY20241 entity11 source
FY20251 entity11 source
Evidence stateAll indicator observations

Data status

100.0%Verified / 10

Confidence

100.0%High / 10
Series groupingLatest bounded snapshot, largest groups first
GroupRowsAverageRange
Federal premerger102,223.51,637 to 3,520

04 / Exact paired lens

HSR volume and Second Request rate

Reported HSR transactions and Second Request rate for the same federal fiscal year.

Same entity + same period-0.680Pearson correlation across 10 exact pairs

-1 inverse 0 +1 aligned

Pairing rule
Same HSR program and federal fiscal year
Companion indicator
Second Request rate
Matched current-series rows
10 / 10 (100.0%)
Unpaired current-series rows
0; excluded from correlation

Interpretation boundaryHSR transactions are federal premerger notifications, not a census of every U.S. merger. Second Requests are review-stage counts, not findings that a transaction was anticompetitive. The relationship does not show that filing volume causes review intensity.

05 / Source custody

Evidence behind the series

1 source family, 0 contextual references, and 1 encoded methodology note.

Agency report

48th Hart-Scott-Rodino Annual Report (FY 2025)

Federal Trade Commission and U.S. Department of Justice

Rows
10
Years
2016-2025
Accessed
Jul 18, 2026
Reusable indicator packetExact rows, stable identifier, and explicit route contract
Canonical URL
/indicators/hsr-transactions
Indicator filter
indicator=hsr-transactions
License
Antitrust Radar compilation: CC BY 4.0; upstream terms remain in force
Method notes encoded on rowsNo inferred methodology is substituted
  1. 01

    Transactions reported under the federal HSR premerger notification program in the fiscal year.

Indicator evidence guardrail

One measure, one contract

This profile documents one bounded indicator at a time. Its ranks, distributions, histories, and paired views remain inside the stated universe, period basis, source, unit, and methodology; they are descriptive research screens, not legal findings or components of a composite score.

HSR transactions are federal premerger notifications, not a census of every U.S. merger. Second Requests are review-stage counts, not findings that a transaction was anticompetitive.

Read methodology