SPY near-the-money implied volatility by days to expiry

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.

Rows × columns

8 × 2

Computed

2026-08-22

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

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 2026-08-22, and the query below is what returned them.

SELECT
    multiIf(
        days_to_expiry = 0,   '0 (today)',
        days_to_expiry = 1,   '1',
        days_to_expiry <= 3,  '2-3',
        days_to_expiry <= 7,  '4-7',
        days_to_expiry <= 14, '8-14',
        days_to_expiry <= 21, '15-21',
        days_to_expiry <= 30, '22-30',
        days_to_expiry <= 60, '31-60',
                              '61-90')      AS dte_bucket,
    round(avg(implied_volatility) * 100, 1) AS spy_iv_pct
FROM global_markets.options_greeks
WHERE underlying_symbol = 'SPY'
  AND date >= today() - 180
  AND iv_converged = 1
  AND volume > 0
  AND days_to_expiry <= 90
  AND abs(toFloat64(strike_price) / toFloat64(underlying_close) - 1) < 0.02
GROUP BY dte_bucket
ORDER BY min(days_to_expiry)