STRASMORE/EXPLORE 3,293 QUERIES 22Y EQUITIES · 12Y OPTIONS

3,293 answered market questions

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

The January Effect: Does It Still Work?
Every January on the daily tape, in trading sessionsranking · 2026-08-11 · 23×2Preview: 16 ranked values, smallest first.
Quote-Driven vs Order-Driven Markets
Quoted spread and displayed size at the NBBO, one June 2026 hourranking · 2026-08-11 · 5×3Preview: 5 ranked values, smallest first. AAPL option trade sizes, one June 2026 sessionranking · 2026-08-11 · 5×4Preview: 5 ranked values, largest first. Share of consolidated volume reported off exchange, by monthseries · 2026-08-11 · 12×5Preview: a 12-point series, ending higher. How US share volume concentrates across symbols, May 2026ranking · 2026-08-11 · 5×4Preview: 5 ranked values, largest first.
OTC Markets Tiers and SEC Rule 15c2-11
Sessions traded in June 2026, share of exchange-listed symbolsranking · 2026-08-11 · 5×2Preview: 5 ranked values, smallest first. Distinct exchange-listed symbols printing a trade each month, 2021 and 2022series · 2026-08-11 · 24×2Preview: a 16-point series, ending higher. Exchange-listed symbols with a recent SEC periodic report, June 2026scalar · 2026-08-11 · 1×313,024
Macro Picture Entering H2 2026, With Receipts
SPY month by month in H1 2026: regular-hours open-to-close return per monthranking · 2026-08-11 · 6×4Preview: 6 ranked values, smallest first. The labor market, monthly: unemployment, participation, average hourly earnings, with ingest receiptstable · 2026-08-11 · 6×5 Model-based inflation expectations by horizon, monthlyranking · 2026-08-11 · 6×4Preview: 6 ranked values, smallest first. The Treasury curve at each month-end of H1 2026: bill, 2-year, 10-year, and the spreads between themtable · 2026-08-11 · 6×8 CPI year-over-year, computed from the index against the same month a year earliertable · 2026-08-11 · 6×5 CPI month-over-month, computed from the index against the prior monthranking · 2026-08-11 · 6×3Preview: 6 ranked values, largest first. The as-of receipts: every June print on file, the July CPI column armed as the next tripwirescalar · 2026-08-11 · 1×51
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.
Dividend Reinvestment Plans (DRIPs) Explained
Days from ex-dividend date to cash: six household dividend payersranking · 2026-08-11 · 6×4Preview: 6 ranked values, largest first. KO: ex-dividend close against the pay date close, 2021 to 2026series · 2026-08-11 · 22×5Preview: a 16-point series, ending lower. Reinvestment events a year: a monthly payer against a quarterly payerranking · 2026-08-11 · 10×3Preview: 10 ranked values, smallest first. How often listed payers distribute, trailing yearranking · 2026-08-11 · 5×3Preview: 5 ranked values, largest first.
When Do Options Expire? Friday 4 PM ET & Daily
Who owns Wednesday: roots by distinct Wednesday-dated expirations, July 6-9, 2026 tapetable · 2026-08-10 · 8×5 SPY options volume by June 2026 expiration date: a new expiry every sessionseries · 2026-08-10 · 21×2Preview: a 16-point series, ending higher. NVDA options volume by June 2026 expiration date: top six expiriesseries · 2026-08-10 · 6×2Preview: a 6-point series, ending lower. The July 2026 holiday move: SPY volume in contracts expiring Thursday July 2 vs Friday July 3scalar · 2026-08-10 · 1×212.84 The rest of 2026, measured: each month's busiest forward expiration date, July 6-9 tapeseries · 2026-08-10 · 6×5Preview: a 6-point series, ending lower. June 2026 SPY options volume by days-to-expiry at the time of the tradeseries · 2026-08-10 · 4×3Preview: a 4-point series, ending lower. Options volume by expiration weekday: all US options traded June 1 - July 9, 2026series · 2026-08-10 · 5×5Preview: a 5-point series, ending higher. The daily-expiration club: every root with an expiry on all 21 June 2026 sessionsranking · 2026-08-10 · 11×3Preview: 11 ranked values, largest first.
The Vendor Display Rule: SEC Rule 603(c)
Consolidated spread vs single venue spread, AAPL, June 17 2026series · 2026-08-10 · 90×4Preview: a 16-point series, ending lower. Where AAPL trades printed, June 17 2026, 10:00 to 11:30 ETranking · 2026-08-10 · 17×3Preview: 16 ranked values, largest first. Which venue held the national best bid in AAPL, June 17 2026, 10:00 to 11:30 ETranking · 2026-08-10 · 16×3Preview: 16 ranked values, largest first.
International Fund NAV: Fair Value Pricing
The overnight and New York halves of the day, year by yearranking · 2026-08-10 · 6×3Preview: 6 ranked values, smallest first. Foreign listings during New York hours, sorted by the US large cap moveranking · 2026-08-10 · 5×4Preview: 5 ranked values, smallest first. Average move by New York half hour, two foreign listingsseries · 2026-08-10 · 25×3Preview: a 16-point series, ending lower. Where the daily move lands: overnight gap versus the New York sessionranking · 2026-08-10 · 6×3Preview: 6 ranked values, largest first.
How Futures Margin Works: SPAN and Calls
SPY typical and largest daily move, month by month since 2019series · 2026-08-10 · 91×4Preview: a 16-point series, ending higher. Short term Treasury yields, the reference a stock margin loan is priced offseries · 2026-08-10 · 91×4Preview: a 16-point series, ending higher. One day move size across six household names, five years to July 2026ranking · 2026-08-10 · 6×3Preview: 6 ranked values, largest first. A decade of SPY daily closing moves, sorted into size bucketsranking · 2026-08-10 · 6×3Preview: 6 ranked values, largest first.
How Continuous Futures Contracts Are Built
Options volume by time left to expiry, AAPL, April to June 2026ranking · 2026-08-10 · 5×2Preview: 5 ranked values, largest first. KO quarterly dividend in cents and as a percent of the share price, 2016 to 2026series · 2026-08-10 · 42×4Preview: a 16-point series, roughly flat.
Contango and Roll Yield in Commodity ETFs
Two listed crude oil funds, calendar year price changeranking · 2026-08-10 · 5×4Preview: 5 ranked values, largest first. Both funds rebased to 100 at the start of the window, month by monthseries · 2026-08-10 · 60×4Preview: a 16-point series, ending higher. The financing leg: 3 month and 1 year Treasury yields by monthseries · 2026-08-10 · 91×4Preview: a 16-point series, ending higher.
SIP Feeds vs Direct Exchange Feeds
Which venues sat on the bid side of the quote record, KO on June 16, 2026ranking · 2026-08-09 · 17×3Preview: 16 ranked values, largest first. Quote update traffic across five household tickers, 10:00 to 11:00 a.m. ET on June 16, 2026table · 2026-08-09 · 5×5 US equity exchanges that feed the consolidated tapetable · 2026-08-09 · 18×4 Venue clock to consolidated tape clock, KO quotes on June 16, 2026series · 2026-08-09 · 15×4Preview: a 15-point series, roughly flat.
Reg T Margin vs Portfolio Margin Explained
SPY realized volatility and worst session, by calendar yearranking · 2026-08-09 · 20×4Preview: 16 ranked values, smallest first. SPY daily moves and drawdown, February to April 2020series · 2026-08-09 · 45×4Preview: a 16-point series, ending lower. Worst one-session and five-session declines since January 2015ranking · 2026-08-09 · 6×3Preview: 6 ranked values, smallest first. Average implied volatility by strike distance from spot, SPY, May to June 2026ranking · 2026-08-09 · 9×3Preview: 9 ranked values, largest first.
Pin Risk at Options Expiration Explained
How far the Friday close lands from the nearest whole dollarranking · 2026-08-09 · 10×3Preview: 10 ranked values, largest first. AAPL's final half hour on its tightest monthly expiration close since 2025series · 2026-08-09 · 30×5Preview: a 16-point series, ending lower.
Midpoint Peg Orders Explained: Half-Cent Fills
Sub-penny print share by reporting route, off exchange against lit exchangeranking · 2026-08-09 · 6×3Preview: 6 ranked values, largest first. Share of trades printed off the penny grid, 10:00 to 11:00 a.m. ET, June 17 2026ranking · 2026-08-09 · 6×3Preview: 6 ranked values, largest first. BLK quoted spread and quote activity by half-hour ET bucket, June 17 2026series · 2026-08-09 · 16×3Preview: a 16-point series, roughly flat. Average NBBO spread and the midpoint saving, 10:00 to 11:00 a.m. ET, June 17 2026ranking · 2026-08-09 · 6×3Preview: 6 ranked values, smallest first.
Maker-Taker Fees and Rebates Explained
Where one liquid name's shares printed, by venue (Jul 15, 2026)ranking · 2026-08-09 · 12×3Preview: 12 ranked values, largest first. Registered US stock exchanges and their participant codestable · 2026-08-09 · 18×5 One hour of NBBO spreads, measured in mils (Jul 15, 2026)ranking · 2026-08-09 · 4×3Preview: 4 ranked values, smallest first. A 30 mil per share fee as basis points of notional, by price band (Jul 15, 2026)ranking · 2026-08-09 · 6×3Preview: 6 ranked values, largest first.
How to Read a Futures Symbol (ESZ6, CLF27)
Volume around one quarterly expiry: SPY June 19 vs September 18, 2026series · 2026-08-09 · 38×3Preview: a 16-point series, ending higher. Delivery years live at the same time on one option calendar (SPY, July 2026)ranking · 2026-08-09 · 3×4Preview: 3 ranked values, smallest first. Where long-dated option volume lands, by expiry month coderanking · 2026-08-09 · 11×3Preview: 11 ranked values, largest first.
How Event Contracts Settle: Payout and Fees
Final-day call prices by where the strike sat against the priceranking · 2026-08-09 · 12×3Preview: 12 ranked values, largest first. Traded price against intrinsic value, by days to expirytable · 2026-08-09 · 30×4 Where SPY option volume sits across the last 30 days of contract lifetable · 2026-08-09 · 30×2
Cost Basis Methods: FIFO vs Specific ID
Cheapest to dearest monthly lot in 2024, five household tickersranking · 2026-08-09 · 5×3Preview: 5 ranked values, largest first. Twelve monthly AAPL lots, first regular session of each month of 2024series · 2026-08-09 · 12×3Preview: a 12-point series, ending higher. Realized gain per share on each 2024 lot, sold at the same June 2025 priceseries · 2026-08-09 · 12×3Preview: a 12-point series, ending lower.
How Options Adjust After Mergers & Spinoffs
One deliverable, two companies: GE and GE HealthCare after the spinseries · 2026-08-09 · 61×5Preview: a 16-point series, ending lower. Near-the-money implied volatility into a cash close (ATVI, 2023)series · 2026-08-09 · 83×4Preview: a 16-point series, ending lower. A target stock pinning to its cash deal price (ATVI, 2023)series · 2026-08-09 · 83×4Preview: a 16-point series, ending lower.
Stop Order vs Stop-Limit Order: How Each Fills
Average one-minute high-low range by time of dayseries · 2026-08-08 · 13×3Preview: a 13-point series, ending lower. Sessions that gapped through a 2% stop, and whether the limit price tradedranking · 2026-08-08 · 5×3Preview: 5 ranked values, smallest first. NVDA's largest gap-down opens and the 30 minutes that followedseries · 2026-08-08 · 8×3Preview: a 8-point series, ending higher. How often each stock opened below the prior closeranking · 2026-08-08 · 5×3Preview: 5 ranked values, largest first.
Professional vs Non-Professional Market Data
US equity and options venues in the exchange reference listranking · 2026-08-08 · 6×3Preview: 6 ranked values, largest first. AAPL quote messages per 15 minutes, pinned session of Jun 16, 2026series · 2026-08-08 · 36×2Preview: a 16-point series, ending higher. Listed option contracts that traded on Jun 16, 2026, by underlyingranking · 2026-08-08 · 5×4Preview: 5 ranked values, largest first. Quote message rate by symbol, 10:00 to 11:00 a.m. ET on Jun 16, 2026ranking · 2026-08-08 · 5×3Preview: 5 ranked values, largest first.
Price-Time Priority vs Pro-Rata Fills
Quote updates per second and average quoted spread, ten minutes on 17 June 2026ranking · 2026-08-08 · 5×3Preview: 5 ranked values, largest first. Average shares per trade print, June 2026ranking · 2026-08-08 · 8×2Preview: 8 ranked values, largest first. AAPL option prints by contract count, 17 June 2026ranking · 2026-08-08 · 5×2Preview: 5 ranked values, largest first. AAPL trade prints by share count, 17 June 2026ranking · 2026-08-08 · 5×2Preview: 5 ranked values, largest first.
How to Read a Form 4 Insider Trading Filing
Calendar days from transaction date to Form 4 filing dateranking · 2026-08-08 · 6×3Preview: 6 ranked values, largest first. Form 4 filings containing a sale: with an exercise on the same document, or withoutseries · 2026-08-08 · 12×4Preview: a 12-point series, ending higher. Share of Form 4 lines booked as indirect ownership, by transaction coderanking · 2026-08-08 · 6×3Preview: 6 ranked values, largest first. Share of reported Form 4 lines by transaction code, Aug 2025 to Jul 2026ranking · 2026-08-08 · 7×3Preview: 7 ranked values, smallest first. Original Form 4 documents and Form 4/A amendments, by filing monthseries · 2026-08-08 · 12×4Preview: a 12-point series, ending higher.
How OHLCV Bars Are Built From Ticks
Odd lot share of prints and of volume, minute by minuteseries · 2026-08-08 · 15×4Preview: a 15-point series, ending lower. How many of the 390 session minutes each US symbol traded inranking · 2026-08-08 · 10×2Preview: 10 ranked values, largest first. Trade condition codes that restrict high, low, and lastranking · 2026-08-08 · 7×3Preview: 7 ranked values, smallest first. SPY volume by minute into the close, June 10 2026series · 2026-08-08 · 25×3Preview: a 16-point series, ending higher. One-minute AAPL bars rebuilt from individual trades, June 10 2026series · 2026-08-08 · 15×6Preview: a 15-point series, ending lower.
Why Your Options Order Isn't Getting Filled
Apple option trades on June 17 2026: share of prints vs share of contracts, by trade sizeranking · 2026-08-07 · 5×3Preview: 5 ranked values, largest first. Apple option activity by strike distance, 20 to 45 days to expiry, May and June 2026ranking · 2026-08-07 · 5×3Preview: 5 ranked values, largest first.
ZM at-the-money IV by days to expiry, most recent week of data

ZM at-the-money IV by days to expiry, most recent week of data

most recentas of ranking 5×4read in context →
ZM at-the-money IV by days to expiry, most recent week of data — 5 rows by 4 columns, computed from US exchange, SIP and OPRA data.
dte_bucketatm_iv_pctcontract_countas_of
0 to 10 days53.8162Oct 22, 2026
11 to 30 days42.9149Oct 22, 2026
31 to 60 days44.783Oct 22, 2026
61 to 120 days4547Oct 22, 2026
over 120 days44.771Oct 22, 2026
the exact SQL behind every number
SELECT
    multiIf(days_to_expiry <= 10,  '0 to 10 days',
            days_to_expiry <= 30,  '11 to 30 days',
            days_to_expiry <= 60,  '31 to 60 days',
            days_to_expiry <= 120, '61 to 120 days',
                                   'over 120 days')   AS dte_bucket,
    round(100 * avg(toFloat64(implied_volatility)), 1) AS atm_iv_pct,
    count()                                            AS contract_count,
    formatDateTime(max(date), '%b %e, %Y')             AS as_of
FROM global_markets.options_greeks
WHERE underlying_symbol = 'ZM'
  AND iv_converged = 1
  AND volume > 0
  AND toFloat64(underlying_close) > 0
  AND abs(toFloat64(strike_price) / toFloat64(underlying_close) - 1) < 0.05
  AND date >= (
        SELECT max(date)
        FROM global_markets.options_greeks
        WHERE underlying_symbol = 'ZM' AND iv_converged = 1
      ) - 7
GROUP BY dte_bucket
ORDER BY min(days_to_expiry)
$