STRASMORE/EXPLORE 2,170 QUERIES 22Y EQUITIES · 12Y OPTIONS

2,170 answered market questions

every one with its exact SQL, its result and the date it was computed · free, no signup

How Implied Volatility Is Calculated
Where the Newton step misbehaves: AAPL vega by strike zone, June 30, 2026ranking · 2026-08-25 · 6×3Preview: 6 ranked values, largest first. At the money implied volatility and solver convergence, eight names, June 30, 2026ranking · 2026-08-25 · 8×4Preview: 8 ranked values, largest first. One solve per contract: AAPL implied volatility by strike zone, June 30, 2026ranking · 2026-08-25 · 6×3Preview: 6 ranked values, largest first. One AAPL contract, re-solved every session into its July 17, 2026 expiryseries · 2026-08-25 · 29×3Preview: a 16-point series, ending lower.
Volatility Targeting for Position Sizing
SPY realised volatility by month against a 10% targetseries · 2026-08-22 · 72×4Preview: a 16-point series, roughly flat. What the lookback window costs in daily turnover (SPY, 10% target, 2x cap)ranking · 2026-08-22 · 4×4Preview: 4 ranked values, largest first. One 10% risk budget, six names, six different weightsranking · 2026-08-22 · 6×4Preview: 6 ranked values, smallest first. Weekly realised volatility and the weight it implied, Nov 2019 to Apr 2020series · 2026-08-22 · 25×4Preview: a 16-point series, ending lower.
Survivorship Bias in Stock Data, Explained
Survivors-only average vs whole-cohort average, by starting yeartable · 2026-08-22 · 7×6 Symbols relisted under a new issuer after a long silenceranking · 2026-08-22 · 5×4Preview: 5 ranked values, smallest first. Symbols that printed a final daily bar, by yearranking · 2026-08-22 · 10×3Preview: 10 ranked values, smallest first. The January 2019 universe, grouped by what happened to each nameranking · 2026-08-22 · 9×4Preview: 9 ranked values, smallest first.
How to De-Vig Betting Odds Into Probabilities
Implied probability by quote format, illustrative quotesranking · 2026-08-11 · 5×2Preview: 5 ranked values, largest first. De-vig methods on one lopsided market, -750 against +475ranking · 2026-08-11 · 4×3Preview: 4 ranked values, largest first. Book sum and overround on four illustrative marketsranking · 2026-08-11 · 4×3Preview: 4 ranked values, smallest first.
Anchored VWAP Explained: Formula and Uses
How much the newest session can move an anchored VWAP (AAPL)ranking · 2026-08-07 · 13×2Preview: 13 ranked values, smallest first. Anchored at each name's own lowest close of the past twelve monthstable · 2026-08-07 · 5×5 Daily session VWAP against a VWAP anchored on one date (AAPL)series · 2026-08-07 · 62×4Preview: a 16-point series, ending higher. The same stock and the same last price, twelve different anchors (AAPL)ranking · 2026-08-07 · 12×3Preview: 12 ranked values, smallest first.
Reproducible Backtest in Python, No API Key
A 20/50 moving-average crossover on SPY, year by year, against holdingranking · 2026-08-06 · 9×4Preview: 9 ranked values, smallest first. The same 20/50 rule on five liquid names, 2021 through 2025ranking · 2026-08-06 · 5×4Preview: 5 ranked values, largest first. Same rule, prior-session signal against same-session signal, SPY by yearranking · 2026-08-06 · 9×4Preview: 9 ranked values, smallest first.
What Is Maximum Drawdown? Depth vs Recovery
Same fund, five lookback windows: SPY maximum drawdown by sample length to July 31, 2026ranking · 2026-08-05 · 5×3Preview: 5 ranked values, smallest first. Completed SPY drawdowns since 2016: depth, days falling, days climbing backtable · 2026-08-05 · 8×5 SPY underwater curve: month end close against its running peak, 2016 to 2026series · 2026-08-05 · 127×2Preview: a 16-point series, roughly flat. Maximum drawdown against annualized volatility: eight large caps, five years to July 31, 2026ranking · 2026-08-05 · 8×3Preview: 8 ranked values, largest first.
Where the Newton step misbehaves: AAPL vega by strike zone, June 30, 2026

Where the Newton step misbehaves: AAPL vega by strike zone, June 30, 2026

most recentas of ranking 6×3read in context →
Where the Newton step misbehaves: AAPL vega by strike zone, June 30, 2026 — 6 rows by 3 columns, computed from US exchange, SIP and OPRA data.
strike_vs_spotvega_pct_of_atmcontract_count
0.80-0.9033.124
0.90-0.9562.410
0.95-1.0089.818
1.00-1.0598.518
1.05-1.1073.616
1.10-1.2031.620
the exact SQL behind every number
WITH toFloat64(strike_price) / toFloat64(underlying_close) AS moneyness,
     (
         SELECT avg(toFloat64(vega))
         FROM global_markets.options_greeks
         WHERE underlying_symbol = 'AAPL'
           AND date = toDate('2026-06-30')
           AND days_to_expiry BETWEEN 20 AND 45
           AND iv_converged = 1
           AND volume > 0
           AND abs(toFloat64(strike_price) / toFloat64(underlying_close) - 1) < 0.025
     ) AS atm_vega
SELECT multiIf(moneyness < 0.90, '0.80-0.90',
               moneyness < 0.95, '0.90-0.95',
               moneyness < 1.00, '0.95-1.00',
               moneyness < 1.05, '1.00-1.05',
               moneyness < 1.10, '1.05-1.10',
                                 '1.10-1.20') AS strike_vs_spot,
       round(100 * avg(toFloat64(vega)) / atm_vega, 1) AS vega_pct_of_atm,
       count() AS contract_count
FROM global_markets.options_greeks
WHERE underlying_symbol = 'AAPL'
  AND date = toDate('2026-06-30')
  AND days_to_expiry BETWEEN 20 AND 45
  AND iv_converged = 1
  AND volume > 0
  AND moneyness BETWEEN 0.80 AND 1.20
GROUP BY strike_vs_spot
ORDER BY min(moneyness)
$