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

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SPY Implied Volatility: IV Now & Its History
SPY ATM implied volatility by time to expiration: latest sessionranking · 2026-08-22 · 4×3Preview: 4 ranked values, smallest first. SPY vs QQQ: median ATM implied volatility by month, since mid-2022series · 2026-08-22 · 50×3Preview: a 16-point series, ending lower. SPY at-the-money implied volatility by session: trailing 90 daysseries · 2026-08-22 · 62×2Preview: a 16-point series, ending higher.
SPY Dividend Yield: Why It Trails the Index
Every SPY distribution over the last three years, against the share priceseries · 2026-08-22 · 12×5Preview: a 12-point series, ending lower. Days from ex-dividend date to pay date, last three yearsranking · 2026-08-22 · 3×4Preview: 3 ranked values, largest first. Trailing 12-month dividend yield: SPY against two open-end S&P 500 ETFsranking · 2026-08-22 · 3×3Preview: 3 ranked values, largest first. SPY by calendar year: price change against dividends collectedranking · 2026-08-22 · 7×3Preview: 7 ranked values, smallest first.
SPX vs SPY Options: Which One to Trade
SPY option volume by days to expiry, trailing six weeksranking · 2026-08-22 · 5×3Preview: 5 ranked values, largest first. Time value left in deep in-the-money SPY calls, against the dividend at stakeranking · 2026-08-22 · 16×4Preview: 16 ranked values, smallest first. How close SPY closes to the nearest whole-dollar strike on monthly expirationsseries · 2026-08-22 · 13×4Preview: a 13-point series, ending lower. What one contract controls: SPX, SPY and XSPranking · 2026-08-22 · 3×4Preview: 3 ranked values, largest first.
Market Recap: Week of July 20, 2026
Next week on the calendar: closures, ex-dividends, splits, and the expiry pullscalar · 2026-08-12 · 1×60 SPY median quoted spread and NBBO updates per session, regular hours, July 20-24series · 2026-08-12 · 5×5Preview: a 5-point series, ending higher. SPY by session: close, change, and share volume, July 20-24series · 2026-08-12 · 5×4Preview: a 5-point series, roughly flat. Options contracts, same-day share, and call share by session, July 20-24series · 2026-08-12 · 5×5Preview: a 5-point series, ending higher. SEC filings by session and form type, July 20-24series · 2026-08-12 · 5×5Preview: a 5-point series, roughly flat. Advancers and decliners per session, names with $5M+ traded, July 20-24series · 2026-08-12 · 5×5Preview: a 5-point series, roughly flat. Top names by regular-hours dollar volume, full week July 20-24ranking · 2026-08-12 · 8×3Preview: 8 ranked values, largest first. Daily short-volume file coverage: tickers on file and short shares, July 20-24series · 2026-08-12 · 5×4Preview: a 5-point series, roughly flat. Session verification: sessions, bars, holiday rows, up and down closes, next closurescalar · 2026-08-12 · 1×95 The week's corporate calendar: dividends, splits, listings, newsscalar · 2026-08-12 · 1×917,144 SPY's week in trailing-year context (open-to-close weekly returns)scalar · 2026-08-12 · 1×5-1.1 SPY / QQQ / DIA / IWM: week of July 20 vs the July 17 close, with the prior week's changetable · 2026-08-12 · 4×5 Sector ETFs, full-week change: July 24 close vs July 17 closeranking · 2026-08-12 · 11×3Preview: 11 ranked values, largest first. Treasury curve by session, July 17 print through July 24series · 2026-08-12 · 6×6Preview: a 6-point series, ending higher. Weekly movers: ten biggest gainers and decliners, regular-hours closes, $5M+ traded, splits excludedtable · 2026-08-12 · 20×6 Weekly breadth: July 24 regular close vs July 17 regular close, names with $5M+ traded during the weekscalar · 2026-08-12 · 1×62,437
Market Recap: July 30, 2026, The Day in Numbers
Session verification: first/last SPY bar ET, regular-bar count, holiday receipts, next closurescalar · 2026-08-02 · 1×7390 Seven names: RTH median quoted spread in basis points, with quote-quality counts, July 30table · 2026-08-02 · 7×5 July 31 and August 3 on the calendar: closures, ex-dividends, splits, the Friday expiry, and the short-interest lagscalar · 2026-08-02 · 1×60 Ex-dividends, splits, listings, news, and the July 30 SEC filing mixscalar · 2026-08-02 · 1×14200 Treasury curve prints on file, July 27 through July 30series · 2026-08-02 · 4×5Preview: a 4-point series, ending higher. SPY's median spread ranked against every July session, tightest firstscalar · 2026-08-02 · 1×40.27 Stocks NBBO update count: July 30 vs July 29, with named-ticker updates (millions)scalar · 2026-08-02 · 1×6560.75 Options NBBO tape: total updates vs the stock tape, plus the SPY root slice, July 30scalar · 2026-08-02 · 1×310.32 Top 6 by dollars traded, top 4 by shares traded: July 30 regular hourstable · 2026-08-01 · 10×5 SPY day move in trailing context (open-to-close, June 30 through July 30)scalar · 2026-08-01 · 1×40.77 Sector ETFs, July 30 close vs July 29 close, rankedranking · 2026-08-01 · 11×3Preview: 11 ranked values, largest first. SPY / QQQ / DIA / IWM: July 30 vs the July 29 close, regular hourstable · 2026-08-01 · 4×10 Options tape: contracts, call share, same-day share vs Wednesday, busiest SPY contractscalar · 2026-08-01 · 1×1210.93 Eight mega-caps: change vs July 29 and regular-hours dollars, July 30table · 2026-08-01 · 8×5 Biggest gainers and decliners: July 30 close vs July 29 close, $5M+ traded, splits excludedranking · 2026-08-01 · 16×4Preview: 16 ranked values, largest first. Liquid-tape breadth: July 30 close vs July 29 close, $1M-traded filterscalar · 2026-08-01 · 1×63,782
Market Recap: July 29, 2026, The Day in Numbers
Top 6 by dollars traded, top 4 by shares traded: July 29 regular hourstable · 2026-08-01 · 10×5 Session verification: first/last SPY bar ET, regular-bar count, holiday receipts, next closurescalar · 2026-08-01 · 1×7390 Seven names: RTH median quoted spread in basis points, with quote-quality counts, July 29table · 2026-08-01 · 7×5 July 30 and 31 on the calendar: closures, ex-dividends, splits, the Friday expiry, and the short-interest lagscalar · 2026-08-01 · 1×60 Ex-dividends, splits, listings, news, and the July 29 SEC filing mixscalar · 2026-08-01 · 1×1485 Treasury curve prints on file, July 24 through July 29series · 2026-08-01 · 4×5Preview: a 4-point series, ending higher. SPY day move in trailing context (open-to-close, June 29 through July 29)scalar · 2026-08-01 · 1×4-1.41 SPY's median spread ranked against every July session, tightest firstscalar · 2026-08-01 · 1×40.27 Sector ETFs, July 29 close vs July 28 close, rankedranking · 2026-08-01 · 11×3Preview: 11 ranked values, largest first. SPY / QQQ / DIA / IWM: July 29 vs the July 28 close, regular hourstable · 2026-08-01 · 4×10 Stocks NBBO update count: July 29 vs July 28, with named-ticker updates (millions)scalar · 2026-08-01 · 1×6722.65 Options NBBO tape: total updates vs the stock tape, plus the SPY root slice, July 29scalar · 2026-08-01 · 1×313.55 Options tape: contracts, call share, same-day share vs Tuesday, busiest SPY contractscalar · 2026-08-01 · 1×1211.03 Eight mega-caps: change vs July 28 and regular-hours dollars, July 29table · 2026-08-01 · 8×5 Biggest gainers and decliners: July 29 close vs July 28 close, $5M+ traded, splits excludedranking · 2026-08-01 · 16×4Preview: 16 ranked values, largest first. Liquid-tape breadth: July 29 close vs July 28 close, $1M-traded filterscalar · 2026-08-01 · 1×61,652
Market Recap: July 28, 2026, The Day in Numbers
Top 6 by dollars traded, top 4 by shares traded: July 28 regular hourstable · 2026-08-01 · 10×5 Session verification: first/last SPY bar ET, regular-bar count, holiday receipts, next closurescalar · 2026-08-01 · 1×7390 Seven names: RTH median quoted spread in basis points, with quote-quality counts, July 28table · 2026-08-01 · 7×5 July 29 through 31 on the calendar: closures, ex-dividends, splits, the Friday expiry, and the short-interest lagscalar · 2026-08-01 · 1×60 Ex-dividends, splits, listings, news, and the July 28 SEC filing mixscalar · 2026-08-01 · 1×14147 Treasury curve prints on file, July 23 through July 28series · 2026-08-01 · 4×5Preview: a 4-point series, ending higher. SPY day move in trailing context (open-to-close, June 29 through July 28)scalar · 2026-08-01 · 1×40.21 SPY's median spread ranked against every July session, tightest firstscalar · 2026-08-01 · 1×40.27 Sector ETFs, July 28 close vs July 27 close, rankedranking · 2026-08-01 · 11×3Preview: 11 ranked values, largest first. SPY / QQQ / DIA / IWM: July 28 vs the July 27 close, regular hourstable · 2026-08-01 · 4×10 Stocks NBBO update count: July 28 vs July 27, with named-ticker updates (millions)scalar · 2026-08-01 · 1×6536.07 Options NBBO tape: total updates vs the stock tape, plus the SPY root slice, July 28scalar · 2026-08-01 · 1×310.23 Options tape: contracts, call share, same-day share vs Monday, busiest SPY contractscalar · 2026-08-01 · 1×1210.07 Eight mega-caps: change vs July 27 and regular-hours dollars, July 28table · 2026-08-01 · 8×5 Biggest gainers and decliners: July 28 close vs July 27 close, $5M+ traded, splits excludedranking · 2026-08-01 · 16×4Preview: 16 ranked values, largest first. Liquid-tape breadth: July 28 close vs July 27 close, $1M-traded filterscalar · 2026-08-01 · 1×63,519
Market Recap: July 27, 2026, The Day in Numbers
Top 6 by dollars traded, top 4 by shares traded: July 27 regular hourstable · 2026-08-01 · 10×5 Session verification: first/last SPY bar ET, regular-bar count, holiday receipts, next closurescalar · 2026-08-01 · 1×7390 Seven names: RTH median quoted spread in basis points, with quote-quality counts, July 27table · 2026-08-01 · 7×5 July 28 through 31 on the calendar: closures, ex-dividends, splits, the Friday expiry, and the short-interest lagscalar · 2026-08-01 · 1×60 Ex-dividends, splits, listings, news, and the July 27 SEC filing mixscalar · 2026-08-01 · 1×1491 Treasury curve prints on file, July 22 through July 27series · 2026-08-01 · 4×5Preview: a 4-point series, ending lower. SPY day move in trailing context (open-to-close, June 26 through July 27)scalar · 2026-08-01 · 1×4-0.79 SPY's median spread ranked against every July session through the 27th, tightest firstscalar · 2026-08-01 · 1×40.27 Sector ETFs, July 27 close vs July 24 close, rankedranking · 2026-08-01 · 11×3Preview: 11 ranked values, largest first. SPY / QQQ / DIA / IWM: July 27 vs the July 24 close, regular hourstable · 2026-08-01 · 4×10 Stocks NBBO update count: July 27 vs July 24, with named-ticker updates (millions)scalar · 2026-08-01 · 1×6553.53 Options NBBO tape: total updates vs the stock tape, plus the SPY root slice, July 27scalar · 2026-08-01 · 1×310.38 Options tape: contracts, call share, same-day share vs Friday, busiest SPY contractscalar · 2026-08-01 · 1×1211.07 Eight mega-caps: change vs July 24 and regular-hours dollars, July 27table · 2026-08-01 · 8×5 Biggest gainers and decliners: July 27 close vs July 24 close, $5M+ traded, splits excludedranking · 2026-08-01 · 16×4Preview: 16 ranked values, largest first. Liquid-tape breadth: July 27 close vs July 24 close, $1M-traded filterscalar · 2026-08-01 · 1×63,880
The 2011 US Downgrade: Black Monday's Tape
The ten worst SPY sessions, 2003–2025: August 8, 2011 is the odd one outseries · 2026-07-26 · 10×5Preview: a 10-point series, roughly flat. Treasury yields through the downgrade window, August 1–15, 2011series · 2026-07-26 · 11×5Preview: a 11-point series, ending lower. The recovery, dated: reclaim, failed hold, true bottom, and the last close belowscalar · 2026-07-26 · 1×9120.03 SPY by half-hour: August 8, 2011 regular sessionseries · 2026-07-26 · 13×4Preview: a 13-point series, ending higher. August 8, 2011 across the tape: banks, staples, gold, and the fear gaugeranking · 2026-07-26 · 9×4Preview: 9 ranked values, smallest first. SPY on August 8, 2011: the downgrade Monday, receiptedscalar · 2026-07-26 · 1×11120.03 SPY closes, August 8-12, 2011: crash, rip, crash, ripseries · 2026-07-26 · 5×4Preview: a 5-point series, ending lower.
Microstructure Deep-Dive: June 29, 2026
Raw vs SIP-counted volume, applying the derived exclusion setscalar · 2026-07-26 · 1×424.79 One day of trades: session check plus the size of every printscalar · 2026-07-26 · 1×80
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SPY ATM implied volatility by time to expiration: latest session

SPY ATM implied volatility by time to expiration: latest session

most recentas of ranking 4×3read in context →
SPY ATM implied volatility by time to expiration: latest session — 4 rows by 3 columns, computed from US exchange, SIP and OPRA data.
expiry_bucketatm_iv_pctcontracts
Under 2 weeks12.31024
2-6 weeks12.8713
6 weeks - 4 months14.5264
Beyond 4 months17.4298
the exact SQL behind every number
SELECT multiIf(days_to_expiry <= 14, 'Under 2 weeks', days_to_expiry <= 45, '2-6 weeks',
               days_to_expiry <= 120, '6 weeks - 4 months', 'Beyond 4 months') AS expiry_bucket,
       round(100 * quantileExact(0.5)(implied_volatility), 1) AS atm_iv_pct,
       count() AS contracts
FROM global_markets.options_greeks
WHERE underlying_symbol = 'SPY'
  AND date = (SELECT max(date) FROM global_markets.options_greeks)
  AND iv_converged AND implied_volatility BETWEEN 0.02 AND 5
  AND abs(strike_price / underlying_close - 1) <= 0.05
GROUP BY expiry_bucket
HAVING count() >= 5
ORDER BY min(days_to_expiry)
$