Median implied volatility on 20 to 45 day near-the-money calls, July 2026

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 2026-08-05, from How to Calculate Covered Call Returns.

Rows × columns

5 × 3

Computed

2026-08-05

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 2026-08-05, and the query below is what returned them.

SELECT
    underlying_symbol AS symbol,
    round(100 * quantileDeterministic(0.5)(toFloat64(implied_volatility), cityHash64(ticker)), 1) AS median_iv_pct,
    count() AS contract_count
FROM global_markets.options_greeks
WHERE underlying_symbol IN ('AAPL', 'MSFT', 'NVDA', 'KO', 'SPY')
  AND date >= '2026-07-01'
  AND date <  '2026-08-01'
  AND iv_converged = 1
  AND volume > 0
  AND delta > 0
  AND days_to_expiry BETWEEN 20 AND 45
  AND abs(toFloat64(strike_price) / toFloat64(underlying_close) - 1) < 0.05
GROUP BY underlying_symbol
ORDER BY median_iv_pct DESC