STRASMORE/EXPLORE 3,256 QUERIES 22Y EQUITIES · 12Y OPTIONS

3,256 answered market questions

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Why the Greeks Don't Add Up to Your P&L
Root sum of squared daily moves versus the net move, SPY by monthseries · 2026-10-09 · 12×4Preview: a 12-point series, roughly flat.
What Is Vomma? The Convexity of Vega
How far the vega-only estimate falls short, by size of the vol moveranking · 2026-10-05 · 7×3Preview: 7 ranked values, smallest first. Vega and vomma across strikes, one SPY expiryranking · 2026-10-05 · 7×4Preview: 7 ranked values, largest first. Implied volatility across strikes on the same SPY expiryranking · 2026-10-05 · 7×4Preview: 7 ranked values, largest first. Percent change in vega per vol point, by time to expiry (SPY)ranking · 2026-10-05 · 5×3Preview: 5 ranked values, largest first.
What Is a Calendar Spread in Options?
Near the money implied volatility by expiry band, three namesranking · 2026-10-04 · 6×4Preview: 6 ranked values, smallest first. AAPL front band against back band implied volatility, trailing monthsseries · 2026-10-04 · 81×4Preview: a 16-point series, ending lower. How often front volatility sat above back volatilityranking · 2026-10-04 · 5×4Preview: 5 ranked values, largest first. Theta and vega across expiry bands, near the money AAPLranking · 2026-10-04 · 6×3Preview: 6 ranked values, largest first.
Collar Option Greeks as the Stock Moves
Net collar gamma at 90, 30 and 7 days to expiryranking · 2026-08-18 · 5×4Preview: 5 ranked values, largest first. Net collar gamma, theta and vega across the price rangeranking · 2026-08-18 · 5×4Preview: 5 ranked values, largest first. Collar delta at five stock prices, 30 days to expirytable · 2026-08-18 · 5×5 AAPL implied volatility by strike distance, downside puts vs upside calls (May to July 2026)ranking · 2026-08-18 · 6×4Preview: 6 ranked values, smallest first.
Is High Implied Volatility Good? IV in Context
Implied volatility beside the movement each stock actually delivered over the prior 30 sessionsranking · 2026-08-17 · 11×4Preview: 11 ranked values, largest first. The same reading against each name's own 52-week implied volatility range (July 28, 2026)table · 2026-08-17 · 11×5 At-the-money implied volatility, eleven familiar tickers (July 28, 2026)ranking · 2026-08-17 · 11×2Preview: 11 ranked values, largest first. Where near-the-money implied volatility sat across the traded options market (July 28, 2026)ranking · 2026-08-17 · 6×4Preview: 6 ranked values, smallest first.
The Option Greeks Explained: Delta to Rho
One SPY $740 call's price over its 7-week life (expired Jun 18 2026)series · 2026-08-15 · 31×2Preview: a 16-point series, ending higher. Median greeks by time to expiration: every near-the-money US option, July 15, 2026table · 2026-08-15 · 5×6
What Is Option Vega? Volatility Sensitivity
SPY call vega peaks at the money (~30 days out, 2026-07-13)ranking · 2026-08-13 · 5×2Preview: 5 ranked values, largest first. At-the-money SPY vega grows with time to expiry (2026-07-13)ranking · 2026-08-13 · 4×2Preview: 4 ranked values, smallest first. The SPY $740 call's implied volatility spiked when SPY fell, early June 2026series · 2026-08-13 · 31×2Preview: a 16-point series, ending higher.
What Is Implied Volatility? IV, Explained
ATM implied volatility across every actively traded underlying, July 15, 2026scalar · 2026-08-13 · 1×5753 SPY at-the-money IV by time to expiry: the term structure (2026-07-13)ranking · 2026-08-13 · 4×2Preview: 4 ranked values, smallest first. SPY put IV rises as strikes fall: the volatility skew (2026-07-13)ranking · 2026-08-13 · 5×2Preview: 5 ranked values, smallest first. SPY at-the-money implied volatility, month by month (Jul 2025 – Jul 2026)series · 2026-08-13 · 13×2Preview: a 13-point series, ending lower. At-the-money implied volatility by stock (2026-07-13)ranking · 2026-08-13 · 7×2Preview: 7 ranked values, largest first.
Implied Volatility vs Vega: The Difference
Where vega peaks: AAPL vega and IV across strikes, 20 to 45 days out (July 2026)ranking · 2026-08-13 · 12×4Preview: 12 ranked values, largest first. Same underlying, same IV, rising vega: AAPL by days to expiry (July 2026)ranking · 2026-08-13 · 14×4Preview: 14 ranked values, largest first. Contract days behind the weekly IV series, by monthseries · 2026-08-13 · 12×5Preview: a 12-point series, ending higher. One input, three levels: weekly average IV for AAPL, NVDA and KO (20 to 45 days out)series · 2026-08-13 · 53×5Preview: a 16-point series, ending higher.
Iron Condor vs Iron Butterfly: Break-Evens
Vega across the SPY ladder, indexed to the at-the-money strike, May 2026ranking · 2026-08-07 · 13×3Preview: 13 ranked values, largest first. What a 30-day SPY option cost at each distance from spot, May 2026 averagesranking · 2026-08-07 · 13×3Preview: 13 ranked values, largest first. At-the-money implied volatility and the 30-day expected move it prices, May 2026ranking · 2026-08-07 · 6×3Preview: 6 ranked values, largest first. Strikes that actually traded per session, 20 to 45 days out, May 2026series · 2026-08-07 · 6×3Preview: a 6-point series, ending lower.
What Are LEAPS? Long-Dated Options
SPY, the call's delta, and its implied volatility at four life stagesseries · 2026-07-16 · 4×4Preview: a 4-point series, ending higher. One SPY $600 LEAPS call's price over two years (expired Jan 16 2026)series · 2026-07-16 · 470×2Preview: a 16-point series, ending higher. Theta (daily decay) against days to expiry, across the call's lifeseries · 2026-07-16 · 4×3Preview: a 4-point series, ending lower.
How Option Greeks Change Over Time
The stock both options tracked: SPY, May 1 to Jun 15 2026series · 2026-07-16 · 31×3Preview: a 16-point series, ending higher. The $740 put's greeks, day by day (delta, gamma, theta, vega, IV%)series · 2026-07-16 · 31×7Preview: a 16-point series, ending higher. Call vs put on the same $740 strike: mirror-image pricesseries · 2026-07-16 · 31×4Preview: a 16-point series, ending lower. The $740 call's greeks, day by day (delta, gamma, theta, vega, IV%)series · 2026-07-16 · 31×7Preview: a 16-point series, ending higher.
Root sum of squared daily moves versus the net move, SPY by month

Root sum of squared daily moves versus the net move, SPY by month

most recentas of series 12×4read in context →
Root sum of squared daily moves versus the net move, SPY by month — 12 rows by 4 columns, computed from US exchange, SIP and OPRA data.
monthmonth_labelpath_move_pctnet_move_pct
2025-07Jul 20251.962.3
2025-08Aug 20253.42.09
2025-09Sep 20252.123.25
2025-10Oct 20254.082.44
2025-11Nov 20254.10.28
2025-12Dec 20252.410.19
2026-01Jan 20262.841.5
2026-02Feb 20263.580.8
2026-03Mar 20265.385.19
2026-04Apr 20263.9610.07
2026-05May 20262.925.17
2026-06Jun 20264.991.17
the exact SQL behind every number
WITH
    daily AS
    (
        SELECT
            date,
            toFloat64(any(close)) AS close_px
        FROM global_markets.stocks_daily_aggs
        WHERE ticker = 'SPY'
          AND date >= '2025-06-20'
          AND date <  '2026-07-01'
        GROUP BY date
    ),
    seq AS
    (
        SELECT *, row_number() OVER (ORDER BY date) AS n
        FROM daily
    ),
    steps AS
    (
        SELECT
            toStartOfMonth(b.date)      AS m,
            b.close_px / a.close_px - 1 AS ret
        FROM seq AS a
        INNER JOIN seq AS b ON b.n = a.n + 1
        WHERE b.date >= '2025-07-01'
    )
SELECT
    formatDateTime(m, '%Y-%m')             AS month,
    formatDateTime(m, '%b %Y')             AS month_label,
    round(100 * sqrt(sum(pow(ret, 2))), 2) AS path_move_pct,
    round(100 * abs(sum(ret)), 2)          AS net_move_pct
FROM steps
GROUP BY m
ORDER BY m
$