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Same-day calls vs. puts by ET hour, and the put share of 0DTE volume: July 10, 2026

Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-08-13, from When Do 0DTE Options Trade? By the Hour.

as of ranking 7×4read in context →
Same-day calls vs. puts by ET hour, and the put share of 0DTE volume: July 10, 2026 — 7 rows by 4 columns, computed from US exchange, SIP and OPRA data.
et_hourcall_contracts_mput_contracts_mput_share_pct
09:002.911.5634.9
10:004.13.0943
11:003.362.4442.1
12:002.371.6240.6
13:002.061.4441.1
14:001.741.2842.5
15:002.191.5741.7
Rows × columns
7 × 4
Computed
Completeness
No missing values
Source
US exchange, SIP and OPRA market data
Licence
Strasmore terms · free, no signup
Formats
JSON · CSV · the SQL below

What each column holds

Column definitions for Same-day calls vs. puts by ET hour, and the put share of 0DTE volume: July 10, 2026, derived from the stored result.
ColumnTypeRangeNotes
et_hour text 7 distinct values (09:00, 10:00, 11:00…)
call_contracts_m number 1.74 to 4.1 count
put_contracts_m number 1.28 to 3.09 count
put_share_pct number 34.9 to 43 percent

Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.

the exact SQL behind every number 
SELECT formatDateTime(toStartOfHour(toTimeZone(sip_timestamp, 'America/New_York')), '%H:%i') AS et_hour,
       round(sumIf(size, substring(ticker, length(ticker) - 8, 1) = 'C') / 1e6, 2) AS call_contracts_m,
       round(sumIf(size, substring(ticker, length(ticker) - 8, 1) = 'P') / 1e6, 2) AS put_contracts_m,
       round(100.0 * sumIf(size, substring(ticker, length(ticker) - 8, 1) = 'P') / sum(size), 1) AS put_share_pct
FROM global_markets.options_trades
WHERE sip_timestamp >= toDateTime64('2026-07-10 13:30:00', 9)
  AND sip_timestamp < toDateTime64('2026-07-10 20:00:00', 9)
  AND substring(ticker, length(ticker) - 14, 6) = '260710'
GROUP BY et_hour
ORDER BY et_hour

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