SPY absolute daily move, median and 90th percentile by year
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 2026-08-22, from What Is VIX1D? The 1-Day Volatility Index.
| year | median_move_pct | p90_move_pct | sessions_count |
|---|---|---|---|
| 2019 | 0.41 | 1.22 | 252 |
| 2020 | 0.83 | 3.02 | 253 |
| 2021 | 0.49 | 1.43 | 252 |
| 2022 | 0.98 | 2.52 | 251 |
| 2023 | 0.55 | 1.44 | 250 |
| 2024 | 0.44 | 1.24 | 252 |
| 2025 | 0.52 | 1.56 | 250 |
| 2026 | 0.52 | 1.52 | 160 |
- Rows × columns
- 8 × 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 | 8 distinct values (2019, 2020, 2021…) | |
median_move_pct |
number | 0.41 to 0.98 | percent |
p90_move_pct |
number | 1.22 to 3.02 | percent |
sessions_count |
number | 160 to 253 | count |
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
WITH daily AS
(
SELECT
date,
abs(close_f / prev_close - 1) * 100 AS abs_move_pct
FROM
(
SELECT
date,
close_f,
lagInFrame(close_f) OVER (ORDER BY date ROWS BETWEEN 1 PRECEDING AND CURRENT ROW) AS prev_close
FROM
(
SELECT date, avg(toFloat64(close)) AS close_f
FROM global_markets.stocks_daily_aggs
WHERE ticker = 'SPY'
AND date >= '2018-12-01'
GROUP BY date
)
)
WHERE prev_close > 0
)
SELECT
toString(toYear(date)) AS year,
round(quantileDeterministic(0.5)(abs_move_pct, toUInt32(toYYYYMMDD(date))), 2) AS median_move_pct,
round(quantileDeterministic(0.9)(abs_move_pct, toUInt32(toYYYYMMDD(date))), 2) AS p90_move_pct,
count() AS sessions_count
FROM daily
WHERE date >= '2019-01-01'
GROUP BY year
ORDER BY year
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