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The twelve months before each Apple split

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 2026-08-24, from Apple Stock Split History and Ratios.

as of ranking 3×4read in context →
The twelve months before each Apple split — 3 rows by 4 columns, computed from US exchange, SIP and OPRA data.
split_labelclose_year_earlierclose_before_splitgain_12m_pct
Feb 20050.431.59272.6
Jun 201415.7823.0646.1
Aug 202052.18124.81139.2
Rows × columns
3 × 4
Computed
Completeness
No missing values
Source
US exchange, SIP and OPRA market data
Licence
Strasmore terms · free, no signup
Formats
JSON · CSV · the SQL below

What each column holds

Column definitions for The twelve months before each Apple split, derived from the stored result.
ColumnTypeRangeNotes
split_label text 3 distinct values (Aug 2020, Feb 2005, Jun 2014)
close_year_earlier number 0.43 to 52.18 US dollars
close_before_split number 1.59 to 124.81 US dollars
gain_12m_pct number 46.1 to 272.6 percent

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.

the exact SQL behind every number 
SELECT
    formatDateTime(s.split_date, '%b %Y')                              AS split_label,
    round(argMaxIf(b.close, b.date, b.date <= s.split_date - 365), 2)  AS close_year_earlier,
    round(argMax(b.close, b.date), 2)                                  AS close_before_split,
    round(100 * (argMax(b.close, b.date)
               / argMaxIf(b.close, b.date, b.date <= s.split_date - 365) - 1), 1) AS gain_12m_pct
FROM
(
    SELECT DISTINCT execution_date AS split_date
    FROM global_markets.stocks_splits
    WHERE ticker = 'AAPL'
) AS s
CROSS JOIN
(
    SELECT date, toFloat64(close) AS close
    FROM global_markets.stocks_daily_aggs
    WHERE ticker = 'AAPL'
) AS b
WHERE b.date >= s.split_date - 400
  AND b.date <  s.split_date
GROUP BY s.split_date
HAVING countIf(b.date <= s.split_date - 365) > 0
ORDER BY s.split_date

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