STRASMORE/EXPLORE 2,214 QUERIES 22Y EQUITIES · 12Y OPTIONS

2,214 answered market questions

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

what-is-an-implied-volatility-index
term_structureseries · 2026-09-12 · 13×5Preview: a 13-point series, ending lower. iv_screenerranking · 2026-09-12 · 6×4Preview: 6 ranked values, largest first. iv30_traceseries · 2026-09-12 · 54×5Preview: a 16-point series, ending higher. bracket_legstable · 2026-09-12 · 2×7
what-happens-after-a-reverse-stock-split
ratio_bucketsranking · 2026-09-12 · 5×3Preview: 5 ranked values, largest first. monthly_countsseries · 2026-09-12 · 24×5Preview: a 16-point series, ending higher. forward_returnsranking · 2026-09-12 · 3×4Preview: 3 ranked values, largest first.
what-are-single-stock-futures
margin_comparisonranking · 2026-09-12 · 4×4Preview: 4 ranked values, largest first. carry_illustrationranking · 2026-09-12 · 5×4Preview: 5 ranked values, smallest first.
the-7-percent-sell-rule
stop_distance_sizingranking · 2026-09-12 · 3×2Preview: 3 ranked values, largest first. recovery_hurdleranking · 2026-09-12 · 6×3Preview: 6 ranked values, smallest first.
mo-dividend-increase-history
spinoff_resetsseries · 2026-09-12 · 16×3Preview: a 16-point series, ending lower. raisesseries · 2026-09-12 · 21×7Preview: a 16-point series, ending lower. payment_calendarseries · 2026-09-12 · 4×6Preview: a 4-point series, ending higher. fcf_coveragetable · 2026-09-12 · 6×5 cadenceseries · 2026-09-12 · 2×5Preview: a 2-point series, ending higher.
how-the-ipo-opening-price-is-set
regular_openseries · 2026-09-12 · 5×2Preview: a 5-point series, ending higher. new_symbolsseries · 2026-09-12 · 10×4Preview: a 10-point series, roughly flat.
fed-call-vs-house-call
margin_call_linestable · 2026-09-12 · 3×5 close_at_65table · 2026-09-12 · 2×7
biggest-short-squeezes-in-history
peak_multipleranking · 2026-09-12 · 5×4Preview: 5 ranked values, largest first. market_value_swingtable · 2026-09-12 · 2×5 documented_lossestable · 2026-09-12 · 3×5
which-stocks-have-weekly-options
weekly_shareranking · 2026-09-11 · 4×2Preview: 4 ranked values, largest first. weekly_leadersranking · 2026-09-11 · 25×4Preview: 16 ranked values, largest first. by_weekdayranking · 2026-09-11 · 6×2Preview: 6 ranked values, smallest first. aapl_chainseries · 2026-09-11 · 12×5Preview: a 12-point series, ending higher.
Weekly Market Recap: The Week in Numbers
Where the volume went: most dollars traded over the past weekranking · 2026-09-11 · 8×2Preview: 8 ranked values, largest first. The eleven S&P 500 sectors over the past weekranking · 2026-09-11 · 11×2Preview: 11 ranked values, largest first. Biggest stock losers over the past weekranking · 2026-09-11 · 7×3Preview: 7 ranked values, smallest first. The major index ETFs over the past weekranking · 2026-09-11 · 4×4Preview: 4 ranked values, largest first. Biggest stock gainers over the past weekranking · 2026-09-11 · 7×3Preview: 7 ranked values, largest first. Daily market breadth: advancers vs decliners each session (names trading $500M+)series · 2026-09-11 · 5×3Preview: a 5-point series, ending higher.
Upcoming Stock Splits Calendar
Upcoming US stock splits: announced, with a future effective datetable · 2026-09-11 · 30×5 Announced upcoming splits by directionranking · 2026-09-11 · 2×2Preview: 2 ranked values, smallest first. Announced stock splits by effective month: forward vs reverseseries · 2026-09-11 · 4×4Preview: a 4-point series, ending lower.
Upcoming Ex-Dividend Dates: Stocks This Week
Three household payers at their last ex-date: prior close, ex-morning open, and the payment for scaleseries · 2026-09-11 · 3×8Preview: a 3-point series, roughly flat. Who goes ex-dividend in the next 14 days: names, cadence and implied yield by size bandtable · 2026-09-11 · 4×5 Names going ex-dividend, day by day: the next seven days of declared recordsseries · 2026-09-11 · 5×5Preview: a 5-point series, roughly flat. Ex-dividend dates by calendar month: three-year average, quarterly vs monthly payersseries · 2026-09-11 · 12×4Preview: a 12-point series, ending higher. Thirteen big dividend and income funds: last ex-date, cadence, and the implied next ex-dateseries · 2026-09-11 · 13×8Preview: a 13-point series, roughly flat. Forward-declared ex-dividend records on file: the receipt behind this calendarscalar · 2026-09-11 · 1×53,915 Every mega-cap ex-dividend event of the past six months: price path from the pre-ex closetable · 2026-09-11 · 5×6 Largest companies going ex-dividend in the next 14 days: amount, pay date, indicated yieldseries · 2026-09-11 · 12×8Preview: a 12-point series, ending higher.
Unusual Options Activity: Last Session
Market-wide options volume by session, with monthly expirations labelledseries · 2026-09-11 · 25×5Preview: a 16-point series, ending higher. Calls or puts: the board's call and put contract volume on the same sessiontable · 2026-09-11 · 10×5 What follows a heavy options session: next-session absolute move vs. the same names on an ordinary daytable · 2026-09-11 · 5×6 What the session's contracts were made of: options volume by days to expiryranking · 2026-09-11 · 6×4Preview: 6 ranked values, largest first. Unusual options activity: last completed session vs. each underlying's own 20-session averagetable · 2026-09-11 · 10×8
stop-orders-on-options
spy_put_traceseries · 2026-09-11 · 10×5Preview: a 10-point series, ending lower. spy_put_daily_movesranking · 2026-09-11 · 4×3Preview: 4 ranked values, smallest first. aapl_contracts_by_volumeranking · 2026-09-11 · 5×3Preview: 5 ranked values, largest first.
Short Squeeze Candidates This Week
Squeeze-shaped mechanics: crowded shorts among liquid names, with a rising priceranking · 2026-09-11 · 12×4Preview: 12 ranked values, largest first. The screened names ranked by short interest against shares outstanding (not float)table · 2026-09-11 · 10×5 Every past screened name, by what it did over the next 30 daysranking · 2026-09-11 · 6×3Preview: 6 ranked values, smallest first. From the whole settlement file down to the screened list, one rule at a timeranking · 2026-09-11 · 4×2Preview: 4 ranked values, largest first. Every input behind this screen, and how many days old it isseries · 2026-09-11 · 3×3Preview: a 3-point series, ending lower. Liquid names at 5+ and 10+ days to cover, settlement by settlementseries · 2026-09-11 · 12×4Preview: a 12-point series, ending higher.
Recent Stock Splits (Forward and Reverse)
Forward vs reverse splits executed in the last 45 daysranking · 2026-09-11 · 2×2Preview: 2 ranked values, largest first. Recent reverse stock splits (shares consolidated), last 30 daysranking · 2026-09-11 · 15×4Preview: 15 ranked values, largest first. Recent forward stock splits (shares multiplied), last 60 days, ETFs excludedranking · 2026-09-11 · 15×4Preview: 15 ranked values, largest first.
Most Shorted Stocks Right Now, Measured
The receipts: universe size, filter bite, median crowding, and list churn at the latest printscalar · 2026-09-11 · 1×522,567 Largest short positions by shares: latest settlement, liquid namesranking · 2026-09-11 · 10×4Preview: 10 ranked values, largest first. Crowding leaders vs. their own price: about one month of sessionsseries · 2026-09-11 · 4×5Preview: a 4-point series, ending higher. GME through the January 2021 squeeze: the same three columns, settlement by settlementseries · 2026-09-11 · 10×4Preview: a 10-point series, ending lower. Today's top-3 crowding leaders, traced back eight settlementsseries · 2026-09-11 · 8×4Preview: a 8-point series, ending higher. Biggest days-to-cover increases, latest settlement vs. the prior printranking · 2026-09-11 · 8×4Preview: 8 ranked values, largest first. Highest days to cover among liquid names: latest settlement on filetable · 2026-09-11 · 10×5
Stock Market Holidays 2026–2027: NYSE & Nasdaq
Upcoming US stock market holidays and early closesseries · 2026-09-11 · 12×6Preview: a 12-point series, ending higher. Recently-passed weekday closures, recovered from the SPY tapeseries · 2026-09-11 · 3×3Preview: a 3-point series, roughly flat. Regular trading sessions over the trailing yearscalar · 2026-09-11 · 1×3251 The closure calendar ahead, at a glancescalar · 2026-09-11 · 1×610
Is the Stock Market Open Today?
This calendar year's closures: already passed (counted from the tape) plus still ahead (from the calendar)table · 2026-09-11 · 2×5 SPY across recent weekends and holiday weekends: Friday's close vs. the reopening printseries · 2026-09-11 · 10×6Preview: a 10-point series, ending lower. Every upcoming NYSE closure and early close on the calendar feed, with a countdownseries · 2026-09-11 · 12×6Preview: a 12-point series, ending higher. Unscheduled closures on the tape: zero regular-session bars on an ordinary weekdayseries · 2026-09-11 · 5×4Preview: a 5-point series, roughly flat. Market status computed at this page's refresh: weekday check, holiday check, and the ET clockscalar · 2026-09-11 · 1×70 The most recent session on the tape: bar count, same-day SPY options prints, and the last half-day observedscalar · 2026-09-11 · 1×6211 Weekdays in the trailing year when stocks traded but no Treasury yield printedtable · 2026-09-11 · 2×2
how-long-can-you-hold-a-short-position
maintenance_margin_scheduleranking · 2026-09-11 · 9×3Preview: 9 ranked values, smallest first. borrow_fee_daily_costranking · 2026-09-11 · 7×3Preview: 7 ranked values, smallest first.
Highest Implied Volatility Stocks Right Now
SPY, the same measurement: the market's calm benchmarkscalar · 2026-09-11 · 1×314.1 ATM implied volatility across every actively traded underlying, latest sessionscalar · 2026-09-11 · 1×5940 Highest ATM implied volatility: liquid single names and funds, latest sessiontable · 2026-09-11 · 12×5
Dividend Increases & Cuts This Week
Increases against cuts, by week of declaration (complete weeks only)series · 2026-09-11 · 26×4Preview: a 16-point series, roughly flat. Payers across their own share split: the raw change against the split-adjusted changeseries · 2026-09-11 · 9×7Preview: a 9-point series, ending lower. Increases, cuts and the typical raise this calendar year, by company size (bands use today's market value)table · 2026-09-11 · 4×6 Dividend increases declared in the last 7 days, largest companies first (capped at 12 rows)series · 2026-09-11 · 5×8Preview: a 5-point series, ending lower. Dividend cuts declared in the last 90 days, the deepest 14 first (one week is too thin for a table)series · 2026-09-11 · 14×6Preview: a 14-point series, ending higher.
Biggest Stock Gainers and Losers This Week
Biggest stock losers this week (names trading $1B+, leveraged/inverse ETFs excluded)ranking · 2026-09-11 · 10×4Preview: 10 ranked values, smallest first. The four major index ETFs this week, for contextranking · 2026-09-11 · 4×2Preview: 4 ranked values, largest first. Biggest stock gainers this week (names trading $1B+, leveraged/inverse ETFs excluded)ranking · 2026-09-11 · 10×4Preview: 10 ranked values, largest first.
Biggest Stock Movers This Month
The window and the screened universe behind every board on this pagescalar · 2026-09-11 · 1×521 Where every screened company landed: monthly returns by bucketranking · 2026-09-11 · 6×2Preview: 6 ranked values, largest first. Eight household mega-cap names over the same windowranking · 2026-09-11 · 8×2Preview: 8 ranked values, largest first. Biggest stock losers this month (companies trading $1B+ over the window)ranking · 2026-09-11 · 10×3Preview: 10 ranked values, smallest first. The four major index trackers across the same window, rebased to the first openseries · 2026-09-11 · 21×5Preview: a 16-point series, ending lower. Biggest stock gainers this month (companies trading $1B+ over the window)ranking · 2026-09-11 · 10×3Preview: 10 ranked values, largest first.
Biggest Stock Gainers & Losers of 2026
Excluded from the boards: 2026 splits large enough to fake a year-to-date moveseries · 2026-09-11 · 13×5Preview: a 13-point series, ending higher. The screen, stage by stage: how many names survive each filterranking · 2026-09-11 · 5×2Preview: 5 ranked values, largest first.
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margin_comparison

margin_comparison

as of ranking 4×4read in context →
margin_comparison — 4 rows by 4 columns, computed from US exchange, SIP and OPRA data.
regimemargin_pctdeposit_usdleverage_x
Reg T initial5050002
Reg T maintenance2525004
OneChicago era floor2020005
CME security futures floor1515006.7
the exact SQL behind every number
SELECT
    regime,
    margin_pct,
    round(10000 * margin_pct / 100, 0) AS deposit_usd,
    round(100 / margin_pct, 1) AS leverage_x
FROM (
    SELECT 'Reg T initial' AS regime, 50 AS margin_pct
    UNION ALL SELECT 'Reg T maintenance', 25
    UNION ALL SELECT 'OneChicago era floor', 20
    UNION ALL SELECT 'CME security futures floor', 15
)
ORDER BY margin_pct DESC
$