Average implied volatility by delta bucket, trailing twelve months
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 2026-09-23, from GLD Implied Volatility, Explained.
| delta_bucket | gld_iv_pct | spy_iv_pct |
|---|---|---|
| 10 delta put | 27.31 | 23.17 |
| 25 delta put | 25.96 | 18.86 |
| at the money | 25.09 | 14.98 |
| 25 delta call | 25.73 | 12.7 |
| 10 delta call | 27.67 | 11.65 |
- Rows × columns
- 5 × 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 |
|---|---|---|---|
delta_bucket |
text | 5 distinct values | |
gld_iv_pct |
number | 25.09 to 27.67 | percent |
spy_iv_pct |
number | 11.65 to 23.17 | 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.
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.
WITH wings AS
(
SELECT
underlying_symbol AS sym,
multiIf(
delta BETWEEN -0.15 AND -0.05, 1,
delta BETWEEN -0.32 AND -0.18, 2,
delta BETWEEN 0.45 AND 0.55, 3,
delta BETWEEN 0.18 AND 0.32, 4,
delta BETWEEN 0.05 AND 0.15, 5,
0) AS ord,
toFloat64(implied_volatility) * 100 AS iv_pct
FROM global_markets.options_greeks
WHERE underlying_symbol IN ('GLD', 'SPY')
AND date >= '2025-09-01'
AND date < '2026-09-01'
AND iv_converged = 1
AND volume > 0
AND days_to_expiry BETWEEN 20 AND 45
)
SELECT
['10 delta put', '25 delta put', 'at the money', '25 delta call', '10 delta call'][ord] AS delta_bucket,
round(avgIf(iv_pct, sym = 'GLD'), 2) AS gld_iv_pct,
round(avgIf(iv_pct, sym = 'SPY'), 2) AS spy_iv_pct
FROM wings
WHERE ord > 0
GROUP BY ord
HAVING countIf(sym = 'GLD') > 0
AND countIf(sym = 'SPY') > 0
ORDER BY ord
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