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Was February 8 a big day for TSLA? Its own prior five months as the yardstick

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 Tesla's Bitcoin 10-K: Feb 8, 2021 on the Tape.

as of scalar 1×4read in context →
baseline sessions
109
median abs move pct
2.5
sessions moving more
80
feb8 change pct
1.3
Rows × columns
1 × 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 Was February 8 a big day for TSLA? Its own prior five months as the yardstick, derived from the stored result.
ColumnTypeRangeNotes
baseline_sessions number every row is 109
median_abs_move_pct number every row is 2.5 percent
sessions_moving_more number every row is 80
feb8_change_pct number every row is 1.3 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 
WITH daily AS (
    SELECT
        toDate(toTimeZone(window_start, 'America/New_York')) AS et_date,
        argMaxIf(toFloat64(close), window_start, (toHour(toTimeZone(window_start, 'America/New_York')) * 60 + toMinute(toTimeZone(window_start, 'America/New_York'))) BETWEEN 570 AND 959) AS close_usd
    FROM global_markets.delayed_stocks_minute_aggs
    WHERE ticker = 'TSLA'
      AND window_start >= toDateTime('2020-08-31 00:00:00') AND window_start < toDateTime('2021-02-09 01:00:00')
    GROUP BY et_date
),
chg AS (
    SELECT
        et_date,
        close_usd,
        lagInFrame(close_usd) OVER (ORDER BY et_date ASC ROWS BETWEEN 1 PRECEDING AND CURRENT ROW) AS prev_close
    FROM daily
)
SELECT
    countIf(et_date >= toDate('2020-09-01') AND et_date < toDate('2021-02-08') AND prev_close > 0) AS baseline_sessions,
    round(quantileDeterministicIf(0.5)(abs(close_usd / prev_close - 1) * 100, toUInt32(et_date), et_date >= toDate('2020-09-01') AND et_date < toDate('2021-02-08') AND prev_close > 0), 1) AS median_abs_move_pct,
    countIf(et_date >= toDate('2020-09-01') AND et_date < toDate('2021-02-08') AND prev_close > 0 AND abs(close_usd / prev_close - 1) > abs((SELECT close_usd / prev_close - 1 FROM chg WHERE et_date = toDate('2021-02-08')))) AS sessions_moving_more,
    round(anyIf((close_usd / prev_close - 1) * 100, et_date = toDate('2021-02-08')), 1) AS feb8_change_pct
FROM chg
HAVING countIf(et_date >= toDate('2020-09-01') AND et_date < toDate('2021-02-08') AND prev_close > 0) > 0

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More from this analysisTesla's Bitcoin 10-K: Feb 8, 2021 on the Tape
The 2022 exit: the July 20 disclosure 8-K on file, and TSLA's next session scalar 1×5 → TSLA options on February 8, 2021 vs the prior 20 sessions: contracts and put/call mix scalar 1×7 → Tesla's SEC filings dated February 8, 2021: plus the year-end cash the purchase came out of scalar 1×5 → TSLA on February 8, 2021: the disclosure session, receipted scalar 1×11 → TSLA's next 20 sessions: every close indexed to the February 8, 2021 close series 21×3 → TSLA by half-hour: February 8, 2021 regular session series 13×4 → See all 2,170 queries →