Record day #7
The May 19, 2021 deleveraging day
Record day #7 of 2,244 - open interest removed at prior-day prices - data to 2021-05-19
On May 19, 2021, $743M of Bitcoin perpetual open interest on Binance was closed out in a single day, the #7 largest deleveraging day of the 2,244 on record since 2020-09-02. Across all 1 covered markets the total was $743M, and 100.0% of them shrank by more than 10% while BTC moved -14.44% on the day.
Markets hit hardest
Open interest removed on the day, valued at the previous close; links go to each market's deleveraging history.
| Market | OI removed | Positions change | Price move |
|---|---|---|---|
| Bitcoin | $743M | -41.22% | -14.44% |
Neighbours on the all-time list
| # | Date | BTC OI removed |
|---|---|---|
| 5 | 2025-10-07 | $855M |
| 6 | 2024-08-05 | $752M |
| 8 | 2025-03-03 | $743M |
| 9 | 2025-10-22 | $739M |
Questions this record answers
How much open interest was wiped out on May 19, 2021?
$743M on the Bitcoin contract and $743M across all 1 covered Binance perpetual markets, valued at the previous day's close.
Where does May 19, 2021 rank among crypto liquidation days?
#7 of 2,244 days on record since 2020-09-02, ranked by Bitcoin open interest removed.
How broad was the deleveraging?
100.0% of the 1 covered markets saw their open positions fall by more than 10%; BTC's own open interest changed -41.20% and its price -14.44%.
Could you have sat through this day? Replay it candle by candle, without hindsight, in the K-line trainer.