Reverse splits executed per year, and how many used a ratio of 1-for-10 or larger
Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-10-06, from Reverse Split: Round Up or Cash in Lieu?.
| year | reverse_splits | ratio_10_or_larger |
|---|---|---|
| 2016 | 726 | 457 |
| 2017 | 707 | 446 |
| 2018 | 526 | 341 |
| 2019 | 606 | 401 |
| 2020 | 685 | 459 |
| 2021 | 491 | 282 |
| 2022 | 622 | 442 |
| 2023 | 837 | 608 |
| 2024 | 871 | 629 |
| 2025 | 1038 | 731 |
| 2026 | 947 | 650 |
- Rows × columns
- 11 × 3
- Computed
- Completeness
- No missing values
- Source
- US exchange, SIP and OPRA market data
- Licence
- Strasmore terms · free, no signup
What each column holds
| Column | Type | Range | Notes |
|---|---|---|---|
year |
number | 2,016 to 2,026 | |
reverse_splits |
number | 491 to 1,038 | |
ratio_10_or_larger |
number | 282 to 731 | ratio or rate |
Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.
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This is the exact query behind the result above. Change a ticker, a date or a column and run it against the warehouse — no account, no key. The no-signup tier is smaller than the one this page was computed on; a query that reaches past it comes back saying which plan runs it.
SELECT
toYear(execution_date) AS year,
count() AS reverse_splits,
countIf(toFloat64(split_from) / toFloat64(split_to) >= 10) AS ratio_10_or_larger
FROM global_markets.stocks_splits
WHERE split_from > split_to
AND execution_date >= '2016-01-01'
AND execution_date <= today()
GROUP BY year
ORDER BY year
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