class_share_symbology
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 2026-10-01, from tape-a-b-and-c-explained.
| ticker | tape_number | tape | class_notation |
|---|---|---|---|
| BRK.A | 1 | A | separator |
| BRK.B | 1 | A | separator |
| HEI | 1 | A | no separator |
| HEI.A | 1 | A | separator |
| LEN | 1 | A | no separator |
| LEN.B | 1 | A | separator |
| FOX | 3 | C | no separator |
| FOXA | 3 | C | no separator |
| GOOG | 3 | C | no separator |
| GOOGL | 3 | C | no separator |
- Rows × columns
- 10 × 4
- 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 | 10 distinct values (BRK.A, BRK.B, FOX…) | |
tape_number |
number | 1 to 3 | |
tape |
text | 2 distinct values (A, C) | |
class_notation |
text | 2 distinct values (no separator, separator) |
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,
tape_number,
multiIf(tape_number = 1, 'A', tape_number = 2, 'B', 'C') AS tape,
if(position(ticker, '.') > 0, 'separator', 'no separator') AS class_notation
FROM
(
SELECT
ticker,
any(tape) AS tape_number
FROM global_markets.stocks_trades
WHERE ticker IN ('BRK.A', 'BRK.B', 'LEN', 'LEN.B', 'HEI', 'HEI.A', 'GOOG', 'GOOGL', 'FOX', 'FOXA')
AND sip_timestamp >= toDateTime64('2026-09-15 04:00:00', 9, 'UTC')
AND sip_timestamp < toDateTime64('2026-09-16 04:00:00', 9, 'UTC')
GROUP BY ticker
)
ORDER BY tape_number, ticker
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