split_cadence
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 2026-09-26, from has-spy-ever-split.
| year | forward_splits | reverse_splits | tickers_with_a_split |
|---|---|---|---|
| 2017 | 391 | 707 | 1020 |
| 2018 | 529 | 526 | 932 |
| 2019 | 392 | 606 | 896 |
| 2020 | 362 | 685 | 960 |
| 2021 | 416 | 491 | 818 |
| 2022 | 366 | 622 | 900 |
| 2023 | 362 | 837 | 1104 |
| 2024 | 454 | 871 | 1215 |
| 2025 | 429 | 1038 | 1326 |
| 2026 | 320 | 910 | 1092 |
- Rows × columns
- 10 × 4
- 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 |
text | 10 distinct values (2017, 2018, 2019…) | |
forward_splits |
number | 320 to 529 | |
reverse_splits |
number | 491 to 1,038 | |
tickers_with_a_split |
number | 818 to 1,326 |
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.
Run it yourself
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
toString(toYear(execution_date)) AS year,
toUInt32(countIf(toFloat64(split_to) > toFloat64(split_from))) AS forward_splits,
toUInt32(countIf(toFloat64(split_to) < toFloat64(split_from))) AS reverse_splits,
toUInt32(countDistinct(ticker)) AS tickers_with_a_split
FROM global_markets.stocks_splits
WHERE execution_date >= toDate('2017-01-01')
AND execution_date < today()
AND toFloat64(split_from) > 0
AND ticker NOT IN ('SPCX')
GROUP BY year
ORDER BY year
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