window_coverage
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 2026-10-16, from what-is-stock-beta.
| ticker | return_obs |
|---|---|
| AAPL | 751 |
| JNJ | 751 |
| KO | 751 |
| MSFT | 751 |
| NVDA | 751 |
| SPY | 751 |
| TSLA | 751 |
- Rows × columns
- 7 × 2
- 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 |
|---|---|---|---|
ticker |
text | 7 distinct values (AAPL, JNJ, KO…) | |
return_obs |
number | every row is 751 |
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
ticker,
count() AS return_obs
FROM
(
SELECT
ticker,
date,
lagInFrame(toFloat64(close)) OVER (PARTITION BY ticker ORDER BY date ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING) AS prev_px
FROM global_markets.stocks_daily_aggs
WHERE ticker IN ('SPY', 'AAPL', 'MSFT', 'NVDA', 'TSLA', 'KO', 'JNJ')
AND date >= '2023-10-01'
AND date <= '2026-09-30'
)
WHERE prev_px > 0
GROUP BY ticker
ORDER BY ticker
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