What Is Triple Witching? Volume & Volatility
SPY's expiring June 18, 2026 series: contracts traded by strike, and each strike's distance from the closing priceranking ·
2026-09-28 · 12×4
Contract volume by expiration date: all US options traded June 1-18, 2026, top eight expiriesranking ·
2026-09-28 · 8×2
Closing auction prints of ten large S&P 500 members: dollar volume on witching day vs. a typical June 2026 sessionscalar ·
2026-09-28 · 1×549.6
What Is a Liquidity Sweep in Trading?
SPY 2025: the ten widest pokes above the prior day's high that closed back below itseries ·
2026-09-28 · 10×7
Inside the widest 2025 SPY sweep day: fifteen-minute high, low and volumeseries ·
2026-09-28 · 26×4
Volume in the fifteen minutes that printed the high, beside the session's median and busiest slicesranking ·
2026-09-28 · 3×2
SPY: share of sessions that swept the prior day's high or low, by yearranking ·
2026-09-28 · 5×3
How often a session pokes through the prior day's high or low and closes back inside, 2021 to 2025table ·
2026-09-28 · 7×6
What Does Cross Mean in Trading? 4 Meanings
AAPL quote states in the first five minutes of June 18, 2026: normal, locked, crossedranking ·
2026-09-28 · 3×4
AAPL average volume by clock minute, June 2026: the two cross minutes vs ordinary onesseries ·
2026-09-28 · 7×4
Equities condition codes that mark a cross, an opening, a closing, or an official printtable ·
2026-09-28 · 13×5
What Are Tokenized Stocks? Rights & Settlement
Apple share volume by session segment, Aug 17 to Sep 11, 2026ranking ·
2026-09-28 · 5×3
Share of volume printed outside the regular session, five names, same four weeksranking ·
2026-09-28 · 5×3
Apple dividends: ex-date, record date and pay date, 2024 to August 2026series ·
2026-09-28 · 11×7
TWAP vs VWAP vs POV Orders Explained
SPY intraday volume curve vs a flat TWAP schedule, June to August 2026series ·
2026-09-28 · 13×4
How far volume falls from the open to the 12:30 half hour, five liquid namestable ·
2026-09-28 · 5×6
What a 10% participation order on AAPL could fill each half hour, August 12, 2026series ·
2026-09-28 · 13×4
SPY: median, lowest and highest share of the day's volume per half hour, June to August 2026series ·
2026-09-28 · 13×4
Triple Witching 2026 Dates and Volume Data
SPY on witching sessions vs. the same month's other sessions: intraday range and net move (% of the open)series ·
2026-09-28 · 8×4
Every quarterly witching session since September 2024: market-wide regular-hours dollar volume before the closing auctions, vs. the month's other sessionsseries ·
2026-09-28 · 8×4
Dollar volume by half hour, closing auction prints in the final bucket: witching Thursday (Jun 18, 2026) vs. the ordinary Friday before it (Jun 12)series ·
2026-09-28 · 13×3
Tradegate vs Xetra: Hours and Prices
Median quoted spread by clock hour, one symbol, one sessionseries ·
2026-09-28 · 16×4
SPY volume in ten-minute buckets across one full trading dayseries ·
2026-09-28 · 96×2
Evening volume share and the gap to the official closeranking ·
2026-09-28 · 6×3
Where one session's volume actually printed, by phaseseries ·
2026-09-28 · 5×3
Time in Force Explained: Day, GTC, IOC, FOK
SPY share volume by ET clock hour, June 2026series ·
2026-09-28 · 16×2
Print sizes across five names, 10:00 to 11:00 a.m. ET on 2026-06-10ranking ·
2026-09-28 · 5×3
US stock splits per month, forward and reverseseries ·
2026-09-28 · 12×3
SPY volume per minute into the close, then the closing cross, June 2026 session averageseries ·
2026-09-28 · 16×2
NYSE Imbalance Messages: How to Read Them
Gap between the 3:50 p.m. price and the official close, July 2026 sessionsranking ·
2026-09-28 · 6×3
How often the close finished above the 3:50 p.m. price, July 2026 sessionsranking ·
2026-09-28 · 6×3
Coca-Cola average volume per five-minute bucket from 3:00 p.m. ET, then the closing auction print, July 2026series ·
2026-09-28 · 13×2
Share of regular-session volume in the opening and closing auction prints, July 2026ranking ·
2026-09-28 · 6×3
NYSE Closing Auction Explained: How It Works
KO second by second: the last ten seconds of continuous trading and the closing auction (Aug 19, 2026)series ·
2026-09-28 · 19×5
The receipt: KO's last continuous trade, its closing auction print, and the daily bar's close (Aug 19, 2026)scalar ·
2026-09-28 · 1×1290.38
Trade condition codes that describe a close, from the consolidated-tape dictionarytable ·
2026-09-28 · 5×3
The closing print as a share of the day's volume, eight NYSE-listed names (Aug 19, 2026)series ·
2026-09-28 · 8×4
NVDA: Sit-Out, Then Surge, Week of July 6
Print-size anatomy and quote census: NVDA, full weekscalar ·
2026-09-28 · 1×512.17
NVDA median quoted spread by session, regular hours (bps of midpoint)series ·
2026-09-28 · 5×3
FINRA daily short volume, NVDA: with the file-completeness caveatranking ·
2026-09-28 · 5×3
NVDA by session: close, change, shares, dollarsseries ·
2026-09-28 · 5×5
NVDA, week of July 6, 2026: open to close, extremes with receipts, volumescalar ·
2026-09-28 · 1×14194.51
Rank receipt: NVDA's weekly dollar volume against every other ticker, plus the Friday-only rankscalar ·
2026-09-28 · 1×73
NVDA position check as of Friday's close: trailing-year extremes and moving averagesscalar ·
2026-09-28 · 1×12210.96
NVDA options, full week: totals, put-call vs trailing baseline, strikes and expiries decodedscalar ·
2026-09-28 · 1×1117.28
News-feed attention: articles tagged NVDA during the week, decodedscalar ·
2026-09-28 · 1×1186
The week's heaviest tickers by regular-hours dollar volumeranking ·
2026-09-28 · 6×2
NVDA vs the chip complex: close-over-close % change by sessionseries ·
2026-09-28 · 5×6
NVDA weekly returns, trailing ~26 weeks (open-to-close per week): where this week rankstable ·
2026-09-28 · 27×3
Nasdaq Opening Cross Explained: 4 a.m. to 9:30
Share of regular-session volume in the opening minute, the 12:30 minute, and the closing cross, August 2026ranking ·
2026-09-28 · 5×4
Trade condition codes whose names mark an opening or reopening printranking ·
2026-09-28 · 14×3
AAPL: opening-minute and closing-cross share of regular-session volume, by sessionseries ·
2026-09-28 · 21×4
Micro E-mini vs E-mini Futures: Specs & Cost
SPY volume on each quarterly expiry Friday against its prior 20 sessionsseries ·
2026-09-28 · 13×3
Average daily range by index family, trailing six monthsranking ·
2026-09-28 · 4×3
Market Recap: July 9, 2026, The Day in Numbers
Shares per 30-minute ET bucket, regular hours, closing auction prints in the final bucket, with % of the day's biggest bucketseries ·
2026-09-28 · 13×3
Market Recap: July 7, 2026, The Day in Numbers
Shares traded per 30-minute bucket, regular hours, closing auction prints in the final bucket (billions)series ·
2026-09-28 · 13×3
Market Recap: July 2, 2026, The Day in Numbers
Shares traded per 30-minute bucket, regular hours, closing auction prints in the final bucket (billions)series ·
2026-09-28 · 13×3
Market Recap: June 30, 2026, The Day in Numbers
Shares traded per 30-minute bucket, regular hours, closing auction prints in the final bucket (billions)series ·
2026-09-28 · 13×3
Market Recap: June 29, 2026, The Day in Numbers
Shares traded per 30-minute bucket, regular hours, closing auction prints in the final bucket (billions)series ·
2026-09-28 · 13×4
Market Data Skills for AI Agents
Trading sessions per month: SPY bars, July 2025 through June 2026series ·
2026-09-28 · 12×4
Where the volume sits: share of June 2026 volume by half hour, New York timeseries ·
2026-09-28 · 32×3
One company, two tickers: share class volume split, June 2026ranking ·
2026-09-28 · 6×4
Minute bars per session: nine widely held names, June 2026series ·
2026-09-28 · 9×4
Leveraged ETF Rebalancing Into the Close
The twelve biggest 2025 index moves and the reset trade each one requiresseries ·
2026-09-28 · 12×6
The final half hour and the closing cross on 2025's largest-move session, against a typical 2025 sessionseries ·
2026-09-28 · 31×3
2025 sessions by index move size, and the 3x reset each bucket impliesranking ·
2026-09-28 · 5×3
Share of session volume printed in the closing cross, July to December 2025ranking ·
2026-09-28 · 8×4
Is Cross Trading Legal? Rules by Venue
AAPL prints by trade size, June 10, 2026ranking ·
2026-09-28 · 4×4
Trade condition codes that carry the word crossranking ·
2026-09-28 · 6×4
SPY: share of daily volume in the opening and closing cross prints, June 2026series ·
2026-09-28 · 21×4
Opening and closing cross prints as a share of the day's volume, June 10, 2026ranking ·
2026-09-28 · 5×3
How Mutual Fund NAV Is Calculated: Example
Share of SPY's session volume by half hour, June 2026 averageseries ·
2026-09-28 · 13×2
Average move from the 11:30 a.m. ET European close to the 4:00 p.m. close, Q2 2026ranking ·
2026-09-28 · 5×3
One session's price path, SPY every 15 minutes on June 17, 2026series ·
2026-09-28 · 27×2
Distance from the 10:00 a.m. ET price to the close, SPY, by monthseries ·
2026-09-28 · 12×4
How Exchange Speed Bumps Work
Average spacing between national best quote updates, one fixed hourranking ·
2026-09-28 · 5×3
Quote messages per minute against distinct best-bid prices (NVDA)series ·
2026-09-28 · 60×3
Which venues held the best bid, half-hour slice (AAPL)ranking ·
2026-09-28 · 16×4
March 24, 2020: The Day the Market Turned
Did it hold? The retest that never came, and two recovery clocksscalar ·
2026-09-28 · 1×12338.31
March 24, 2020 ranked against every SPY session on the minute tapescalar ·
2026-09-28 · 1×115,613
SPY by half-hour: March 24, 2020 regular session, closing cross print in the final half hourseries ·
2026-09-28 · 13×4
SPY on March 24, 2020: the turn, receiptedscalar ·
2026-09-28 · 1×11222.51
SPY daily close, drawdown, and the 10-year yield: Feb 19 to Mar 23, 2020series ·
2026-09-28 · 24×4
March 24, 2020 across index and sector ETFs: everything up, cyclicals firstranking ·
2026-09-28 · 12×4
SPY closes, March 23-26, 2020: the three-day burstseries ·
2026-09-28 · 4×4
COVID Crash 2020: Four Halts, Peak to Trough
10-year and 3-month Treasury yields through the crash, daily closesseries ·
2026-09-28 · 31×3
SPY options: puts vs calls traded, March 2–13, 2020 (millions of contracts)series ·
2026-09-28 · 10×4
March 9 and full-crash moves: cruise, airline, energy, bank, tech, staples vs SPYranking ·
2026-09-28 · 7×3
SPY by half-hour: March 9, 2020 regular session, closing cross print in the final half hourseries ·
2026-09-28 · 13×4
SPY on March 9, 2020: the circuit-breaker session, receiptedscalar ·
2026-09-28 · 1×11297.42
The COVID crash, peak to trough to recovery: SPY daily closes, one rowscalar ·
2026-09-28 · 1×11338.31
The four circuit-breaker sessions of March 2020: SPY close, change, volumeseries ·
2026-09-28 · 4×4
Compressing Market Data: zstd vs gzip
Distinct prices per name, and how often each one repeatsranking ·
2026-09-28 · 5×3
One session of trade prints, five household namesranking ·
2026-09-28 · 5×3
Uncompressed footprint of five names as retention growsranking ·
2026-09-28 · 6×2
AAPL trade counts and distinct prices per quarter hourseries ·
2026-09-28 · 64×3
Can You Trade US Stocks 24 Hours a Day?
Shares printed by New York clock hour: AAPL, MSFT, NVDA, SPY and TSLA, week of July 13, 2026series ·
2026-09-28 · 16×3
AAPL quoted spread by New York clock hour, July 14, 2026: median and 90th percentile minuteranking ·
2026-09-28 · 7×4
Share of weekly volume by session window: seven household names, week of July 13, 2026ranking ·
2026-09-28 · 7×4
NVDA on July 14, 2026: price and volume in 30 minute buckets, 4:00 a.m. to 8:00 p.m. ETseries ·
2026-09-28 · 32×3
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
| dte_bucket | atm_iv_pct | contract_count | as_of |
|---|---|---|---|
| 0 to 10 days | 53.8 | 162 | Oct 22, 2026 |
| 11 to 30 days | 42.9 | 149 | Oct 22, 2026 |
| 31 to 60 days | 44.7 | 83 | Oct 22, 2026 |
| 61 to 120 days | 45 | 47 | Oct 22, 2026 |
| over 120 days | 44.7 | 71 | Oct 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)
More from this analysisZM Implied Volatility: Zoom IV and Earnings
ZM at-the-money 30-day implied volatility, recent sessions
series 83×4
→
ZM at-the-money IV before and on the biggest one-session drop in each quarter
table 9×5
→
ZM at-the-money IV by calendar year: average, low and high
table 8×5
→
Implied volatility beside the movement each stock actually delivered over the prior 30 sessions
ranking 11×4
→
See all 3,293 queries →