Record day #3
The Sep 7, 2021 deleveraging day
Record day #3 of 2,244 - open interest removed at prior-day prices - data to 2021-09-07
On Sep 7, 2021, $959M of Bitcoin perpetual open interest on Binance was closed out in a single day, the #3 largest deleveraging day of the 2,244 on record since 2020-09-02. Across all 1 covered markets the total was $959M, and 100.0% of them shrank by more than 10% while BTC moved -11.05% 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 | $959M | -29.37% | -11.05% |
Neighbours on the all-time list
| # | Date | BTC OI removed |
|---|---|---|
| 1 | 2025-10-10 | $2.92B |
| 2 | 2021-12-04 | $1.13B |
| 4 | 2024-04-13 | $856M |
| 5 | 2025-10-07 | $855M |
Questions this record answers
How much open interest was wiped out on Sep 7, 2021?
$959M on the Bitcoin contract and $959M across all 1 covered Binance perpetual markets, valued at the previous day's close.
Where does Sep 7, 2021 rank among crypto liquidation days?
#3 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 -29.40% and its price -11.05%.
Could you have sat through this day? Replay it candle by candle, without hindsight, in the K-line trainer.