Stocks NBBO update count: July 10 vs July 9, with named-ticker updates (millions)
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 2026-07-26, from Market Recap: July 10, 2026, The Day in Numbers.
- Rows × columns
- 1 × 6
- Computed
- Completeness
- No missing values
- Source
- US exchange, SIP and OPRA market data
- Licence
- Strasmore terms · free, no signup
What each column holds
| Column | Type | Range | Notes |
|---|---|---|---|
jul10_updates_m |
number | every row is 402.21 | |
jul9_updates_m |
number | every row is 383.44 | |
day_over_day_pct |
number | every row is 4.9 | percent |
jul10_spy_updates_m |
number | every row is 2.48 | |
jul10_qqq_updates_m |
number | every row is 4.28 | |
jul10_nvda_updates_m |
number | every row is 2.24 |
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.
Run it yourself
This is the exact query behind the result above. Change a ticker, a date or a column and run it against the warehouse — no account, no key. The no-signup tier is smaller than the one this page was computed on; a query that reaches past it comes back saying which plan runs it.
SELECT
round(countIf(toDate(sip_timestamp) = toDate('2026-07-10')) / 1e6, 2) AS jul10_updates_m,
round(countIf(toDate(sip_timestamp) = toDate('2026-07-09')) / 1e6, 2) AS jul9_updates_m,
round((countIf(toDate(sip_timestamp) = toDate('2026-07-10')) / countIf(toDate(sip_timestamp) = toDate('2026-07-09')) - 1) * 100, 1) AS day_over_day_pct,
round(countIf(toDate(sip_timestamp) = toDate('2026-07-10') AND ticker = 'SPY') / 1e6, 2) AS jul10_spy_updates_m,
round(countIf(toDate(sip_timestamp) = toDate('2026-07-10') AND ticker = 'QQQ') / 1e6, 2) AS jul10_qqq_updates_m,
round(countIf(toDate(sip_timestamp) = toDate('2026-07-10') AND ticker = 'NVDA') / 1e6, 2) AS jul10_nvda_updates_m
FROM global_markets.cache_stocks_quotes
WHERE sip_timestamp >= '2026-07-09 00:00:00' AND sip_timestamp < '2026-07-11 00:00:00'
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