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Monthly median put/call ratio: broad market ETFs against single stocks

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 2026-08-06, from How the Put/Call Ratio Is Calculated.

as of series 12×4read in context →
Monthly median put/call ratio: broad market ETFs against single stocks — 12 rows by 4 columns, computed from US exchange, SIP and OPRA data.
monthmonth_labeletf_median_ratiostock_median_ratio
2025-08-01Aug 20251.520.6
2025-09-01Sep 20251.660.52
2025-10-01Oct 20251.630.55
2025-11-01Nov 20251.510.59
2025-12-01Dec 20251.210.58
2026-01-01Jan 20261.50.6
2026-02-01Feb 20261.580.66
2026-03-01Mar 20261.570.76
2026-04-01Apr 20261.710.54
2026-05-01May 20261.550.43
2026-06-01Jun 20261.470.55
2026-07-01Jul 20261.490.56
Rows × columns
12 × 4
Period covered
to
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 Monthly median put/call ratio: broad market ETFs against single stocks, derived from the stored result.
ColumnTypeRangeNotes
month date 2025-08-01 to 2026-07-01
month_label text 12 distinct values (Apr 2026, Aug 2025, Dec 2025…)
etf_median_ratio number 1.21 to 1.71 ratio or rate
stock_median_ratio number 0.43 to 0.76 ratio or rate

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
            d,
            toFloat64(sumIf(volume, right_letter = 'P' AND sym IN ('SPY', 'QQQ', 'IWM')))
                / toFloat64(sumIf(volume, right_letter = 'C' AND sym IN ('SPY', 'QQQ', 'IWM')))     AS etf_ratio,
            toFloat64(sumIf(volume, right_letter = 'P' AND sym NOT IN ('SPY', 'QQQ', 'IWM')))
                / toFloat64(sumIf(volume, right_letter = 'C' AND sym NOT IN ('SPY', 'QQQ', 'IWM'))) AS stock_ratio
        FROM
        (
            SELECT
                date                                     AS d,
                underlying_symbol                        AS sym,
                volume,
                substring(ticker, length(ticker) - 8, 1) AS right_letter
            FROM global_markets.options_greeks
            WHERE date >= '2025-08-01'
              AND date <  '2026-08-01'
              AND underlying_symbol IN ('SPY', 'QQQ', 'IWM', 'AAPL', 'MSFT', 'NVDA', 'TSLA', 'KO')
              AND volume > 0
        )
        GROUP BY d
        HAVING countIf(right_letter = 'C' AND sym IN ('SPY', 'QQQ', 'IWM')) > 0
           AND countIf(right_letter = 'C' AND sym NOT IN ('SPY', 'QQQ', 'IWM')) > 0
    )
SELECT
    toString(toStartOfMonth(d))                AS month,
    formatDateTime(toStartOfMonth(d), '%b %Y') AS month_label,
    round(quantileExact(0.5)(etf_ratio), 2)    AS etf_median_ratio,
    round(quantileExact(0.5)(stock_ratio), 2)  AS stock_median_ratio
FROM daily
GROUP BY month, month_label
ORDER BY month

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