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

3,293 answered market questions

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Why Your Options Order Isn't Getting Filled
Median quoted spread on Apple options by contract price, 30 second window on June 17 2026ranking · 2026-08-07 · 5×3Preview: 5 ranked values, smallest first. Apple options quote updates, second by second, 2:00 p.m. ET on June 17 2026series · 2026-08-07 · 30×3Preview: a 16-point series, ending higher.
What Is Option Rho? The Interest Rate Greek
Weekly average rho: SPY January 2027 calls against a rolling front-month seriesseries · 2026-08-07 · 52×3Preview: a 16-point series, ending higher. Average SPY option rho by time to expiration, indexed to the front monthranking · 2026-08-07 · 6×4Preview: 6 ranked values, smallest first. Average rho on long-dated SPY options, by strike against the share priceranking · 2026-08-07 · 7×4Preview: 7 ranked values, largest first. Start-to-end change in Treasury yields by calendar year, in basis pointsranking · 2026-08-07 · 13×3Preview: 13 ranked values, smallest first.
Trade Condition Codes Explained
Share of a session's prints carrying price-ineligible conditionsranking · 2026-08-07 · 5×4Preview: 5 ranked values, largest first. Two versions of the same AAPL session high, fifteen minutes at a timeseries · 2026-08-07 · 26×3Preview: a 16-point series, ending lower. Condition code families defined for US stocksranking · 2026-08-07 · 8×2Preview: 8 ranked values, largest first. One AAPL session, every print grouped by its sale conditionranking · 2026-08-07 · 12×3Preview: 12 ranked values, largest first.
The Sub-Penny Rule and Price Improvement
What one cent is worth, by share price bandranking · 2026-08-07 · 8×3Preview: 8 ranked values, smallest first. The penny tick and the quoted gap, in basis pointstable · 2026-08-07 · 7×5 Share of prints that landed on a sub-penny priceranking · 2026-08-07 · 7×3Preview: 7 ranked values, largest first. AAPL sub-penny print rate by trade size, 17 June 2026ranking · 2026-08-07 · 5×3Preview: 5 ranked values, largest first.
Rule 605 vs 606: Execution Quality Reports
Where AAPL prints fall by trade size, June 17, 2026ranking · 2026-08-07 · 5×3Preview: 5 ranked values, largest first. Share of June 2026 volume reported to FINRA facilitiesranking · 2026-08-07 · 5×3Preview: 5 ranked values, largest first. AAPL quoted spread across the trading clock, June 17, 2026series · 2026-08-07 · 22×3Preview: a 16-point series, ending lower. Effective spread against quoted spread by trade size, AAPLranking · 2026-08-07 · 4×4Preview: 4 ranked values, smallest first.
Level 1 vs Level 2 vs Level 3 Market Data
Executed volume by price level: the traded ladder (KO, 30 minutes)table · 2026-08-07 · 63×3 Level 1 top of book: quoted spread across a full session (AAPL, June 17 2026)series · 2026-08-07 · 32×3Preview: a 16-point series, ending lower. Top-of-book message rate, minute by minute (NVDA, one hour)series · 2026-08-07 · 60×3Preview: a 16-point series, roughly flat. Top-of-book spread and quote message count by name (10:00 to 11:00 a.m. ET)ranking · 2026-08-07 · 5×3Preview: 5 ranked values, smallest first.
Japanese IPO Lockups: The 1.5x Release Rule
One US listing traced against a flat line at 1.5x its offer priceseries · 2026-08-07 · 82×3Preview: a 16-point series, roughly flat. Share of US listings trading at 1.5x their offer price, by day since listingranking · 2026-08-07 · 19×2Preview: 16 ranked values, smallest first. US listings clearing 1.5x the offer price on the first close, by listing yearranking · 2026-08-07 · 8×4Preview: 8 ranked values, smallest first.
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.
How to Roll an Option Position: Up and Out
Moving the strike up costs premium: AAPL calls 30 to 45 days outranking · 2026-08-07 · 6×3Preview: 6 ranked values, largest first. What extra time is worth: at-the-money AAPL call premium by days to expiryranking · 2026-08-07 · 6×3Preview: 6 ranked values, smallest first. Time value left in an in-the-money KO call as expiry approachesranking · 2026-08-07 · 5×4Preview: 5 ranked values, smallest first. 2026 cash dividends per share at eight widely held payersranking · 2026-08-07 · 8×4Preview: 8 ranked values, largest first.
How ETF Creation and Redemption Works
Quoted spread against average share volume, US listed ETFsranking · 2026-08-07 · 5×3Preview: 5 ranked values, smallest first. One session of SPY prints, sorted into trade size bucketsranking · 2026-08-07 · 4×4Preview: 4 ranked values, largest first. Quoted spread through the session: large cap fund vs micro cap fundseries · 2026-08-07 · 79×3Preview: a 16-point series, ending lower. Daily range and volume in a high yield bond ETF, month by monthranking · 2026-08-07 · 9×3Preview: 9 ranked values, smallest first.
Is a Dividend Safe? Free Cash Flow Test
Same year, two payout ratios: earnings basis against cash basis (illustrative, percent)ranking · 2026-08-07 · 2×2Preview: 2 ranked values, smallest first. Illustrative year: the reconciliation behind the coverage test (hypothetical manufacturer, $ millions)ranking · 2026-08-07 · 6×2Preview: 6 ranked values, largest first.
Credit Spread vs Debit Spread: Same Trade?
Every $5-wide vertical on one AAPL chain: debit paid against credit takenranking · 2026-08-07 · 6×4Preview: 6 ranked values, largest first. Profit and loss at expiration: the debit structure against the credit structureranking · 2026-08-07 · 8×4Preview: 8 ranked values, smallest first. Put-call parity on one AAPL chain: call minus put against stock minus striketable · 2026-08-07 · 5×8 Where the volume sat on that AAPL chain: call contracts against put contracts, by strikeranking · 2026-08-07 · 14×4Preview: 14 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.
Why Stock Quotes Are Delayed 15 Minutes
How often the last price changes, minute by minute (June 2026)ranking · 2026-08-06 · 6×3Preview: 6 ranked values, largest first. The 15 minute gap across six household tickers (June 2026)ranking · 2026-08-06 · 6×3Preview: 6 ranked values, largest first. How far SPY travels in 15 minutes, by hour of the session (June 2026)series · 2026-08-06 · 7×4Preview: a 7-point series, ending higher. Live price against a 15 minute delayed view, one SPY sessionseries · 2026-08-06 · 37×5Preview: a 16-point series, ending lower.
When Are 13F Filings Due? 2026 Deadlines
Share of reported volume marked short, Q1 2026 disclosure windowranking · 2026-08-06 · 5×3Preview: 5 ranked values, largest first. The four 13F deadlines for the 2026 quartersseries · 2026-08-06 · 4×7Preview: a 4-point series, ending higher. AAPL: quarter-end snapshot price vs the price on the 13F deadlineseries · 2026-08-06 · 8×7Preview: a 8-point series, ending higher. Trading during the Q1 2026 disclosure window, five household namesranking · 2026-08-06 · 5×4Preview: 5 ranked values, largest first.
What Is the Sharpe Ratio? Formula and Math
Sharpe against Sortino, six names, calendar 2025ranking · 2026-08-06 · 6×4Preview: 6 ranked values, largest first. SPY annualized Sharpe ratio, year by year, fixed 4.25% assumed rateranking · 2026-08-06 · 10×3Preview: 10 ranked values, smallest first. Annualized Sharpe ratio by name, calendar 2025, assumed 4.25% risk-free rateranking · 2026-08-06 · 6×4Preview: 6 ranked values, largest first. One year of SPY, three sampling frequencies, one annualized Sharpe ratioranking · 2026-08-06 · 3×3Preview: 3 ranked values, smallest first. Same SPY 2025 returns, six assumed risk-free ratesranking · 2026-08-06 · 6×4Preview: 6 ranked values, largest first.
What H1 and H2 Mean in Company Reporting
Where nine familiar issuers close their reported periodstable · 2026-08-06 · 9×5 The most recent 10-K on file for the same nine issuersranking · 2026-08-06 · 9×4Preview: 9 ranked values, smallest first. Annual and interim filing forms counted over calendar H1 2026ranking · 2026-08-06 · 3×3Preview: 3 ranked values, largest first. Companies filing a 10-K annual report in each month of calendar H1 2026series · 2026-08-06 · 6×3Preview: a 6-point series, roughly flat.
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.
Portfolio Delta and Beta Weighting Explained
AAPL call and put delta across the strike ladder, 20 to 45 days to expiryranking · 2026-08-06 · 12×4Preview: 12 ranked values, largest first. A three-leg book, raw delta against beta weighted deltatable · 2026-08-06 · 3×6 The same two betas, measured over six different lookback windowsranking · 2026-08-06 · 6×3Preview: 6 ranked values, smallest first. Beta, price ratio, and SPY-share equivalent per share heldranking · 2026-08-06 · 7×4Preview: 7 ranked values, largest first.
Iceberg Orders Explained: Hidden Liquidity
Most repeated price and size pairings, AAPL, June 17, 2026table · 2026-08-06 · 12×5 Every AAPL print on June 17, 2026, grouped by trade sizeranking · 2026-08-06 · 6×4Preview: 6 ranked values, largest first. Average shares per print, monthly, MSFT and KOseries · 2026-08-06 · 90×4Preview: a 16-point series, ending lower. The busiest price and size pairing, half hour by half hourscalar · 2026-08-06 · 1×367
How the Put/Call Ratio Is Calculated
Daily single stock put/call ratio against its 21 session averageseries · 2026-08-06 · 84×4Preview: a 16-point series, ending lower. Where the daily ratio actually sits, twelve months of sessionsranking · 2026-08-06 · 3×4Preview: 3 ranked values, largest first. Monthly median put/call ratio: broad market ETFs against single stocksseries · 2026-08-06 · 12×4Preview: a 12-point series, roughly flat. Daily put/call volume ratio, SPY against AAPL, July 2026series · 2026-08-06 · 22×4Preview: a 16-point series, ending higher. Put and call volume for eight household names, July 2026ranking · 2026-08-06 · 8×4Preview: 8 ranked values, largest first.
ETF Premium and Discount to NAV, Explained
How far seven ETFs travel in a regular session, first half of 2026ranking · 2026-08-06 · 7×3Preview: 7 ranked values, largest first. Median session move by month, 2026 first halfseries · 2026-08-06 · 6×4Preview: a 6-point series, roughly flat. Average minute bar range by ET clock time, second quarter 2026series · 2026-08-06 · 26×4Preview: a 16-point series, ending lower. Median move before and after European markets close, first half of 2026ranking · 2026-08-06 · 4×3Preview: 4 ranked values, largest first.
Do Stocks Fall When a Lockup Expires?
Average daily volume before and after the 180 day mark, 2023-2024 IPOsranking · 2026-08-06 · 6×4Preview: 6 ranked values, smallest first. Short-marked share of reported volume, 30 days either side of the markranking · 2026-08-06 · 6×3Preview: 6 ranked values, largest first. RDDT daily close and volume around its 180 day mark, Aug to Oct 2024series · 2026-08-06 · 53×3Preview: a 16-point series, ending higher. Price change over the 30 days before and after the 180 day markranking · 2026-08-06 · 6×3Preview: 6 ranked values, largest first.
Do Stock Gaps Always Get Filled? The Data
Average one-minute range and volume by time of day, 2025series · 2026-08-06 · 26×3Preview: a 16-point series, ending lower. Same-session gap fill rate by gap size, eight large caps, 2021 to 2026ranking · 2026-08-06 · 5×3Preview: 5 ranked values, largest first. Gap fill rate by how heavy the gap day's volume wasranking · 2026-08-06 · 3×4Preview: 3 ranked values, largest first. Share of 1%+ gaps filled, by how long you waitranking · 2026-08-06 · 4×3Preview: 4 ranked values, largest first.
Box Spread Options and the Implied Loan Rate
Annualised cost of a hypothetical 10 cent fill error on a ten point boxranking · 2026-08-06 · 12×2Preview: 12 ranked values, largest first. Where SPY option volume sits, by strike distance from spot (June 2026)ranking · 2026-08-06 · 5×3Preview: 5 ranked values, largest first. A ten point box valued at every level SPY closed at in June 2026table · 2026-08-06 · 8×5 Net delta of a SPY box as the upper strike widens (June 1, 2026)ranking · 2026-08-06 · 9×4Preview: 9 ranked values, smallest first.
When Does a Stock Split Take Effect?
Completed forward splits of 3-for-1 or larger: selected large-cap names, 2022 to 2026ranking · 2026-08-05 · 12×4Preview: 12 ranked values, largest first. US-listed splits by ratio band, 2021 to mid-2026: the 25% line in the dataranking · 2026-08-05 · 5×3Preview: 5 ranked values, largest first. NVDA around its 10-for-1 split: regular-session close and volume, June 3 to June 14, 2024series · 2026-08-05 · 10×4Preview: a 10-point series, ending higher. Effective dates by weekday: US-listed splits, 2021 to mid-2026series · 2026-08-05 · 5×3Preview: a 5-point series, ending lower.
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)
$