Derivatives Daily: Sep 20 BTC OI at $124B as $245M Liquidates

Crypto derivatives opened Sep 20 with roughly $124.0B in global open interest and $244.9M in liquidations over the latest 24-hour period. The imbalance was clear: short liquidations reached $147.4M against $97.4M for longs, suggesting that the strongest forced move came from traders positioned for a decline. At the same time, the Fear and Greed Index stood at 71, classified as Greed, so the market is carrying both directional momentum and crowded sentiment.
Short liquidations dominate the session
The liquidation path accelerated through the day. One-hour losses totaled $3.0M, four-hour losses reached $34.3M, and the 12-hour figure rose to $122.8M before the full-day total reached $244.8M in the overview feed. Binance recorded the largest exchange-level amount at $103.2M, followed by OKX at $60.0M and Bybit at $31.7M. That concentration matters because it shows the flush was broad across major venues rather than isolated to one platform.
By asset, Bitcoin led the liquidation table with $49.1M, including $37.1M in short liquidations. Ethereum was close behind at $48.6M, with $35.0M of shorts forced out. AKE saw $17.1M, ZEC $15.4M, and SOL $9.0M. The largest single recorded event was a $3.6M BTCUSD short liquidation on Bybit at $81,962.90. This profile favors a short squeeze interpretation, although repeated short liquidations can also leave the market vulnerable to profit-taking once the immediate pressure fades.
ETF demand improves, but BTC still has a weekly deficit
Institutional flow data delivered a mixed signal. The latest available session, Sep 18, showed a $433.0M inflow for the ETF market tied to BTC, lifting assets under management to $102.5B. However, the seven-day sum remained negative at $289.6M. The path was uneven: outflows of $282.6M on Sep 10, $450.3M on Sep 15, and $296.0M on Sep 16 outweighed the later inflows of $160.0M, $159.5M, and $433.0M.
ETH flows were steadier. The latest session brought in $143.8M, assets under management reached $16.7B, and the seven-day sum was positive at $46.7M. This relative improvement in ETH demand fits the broader rotation signal: the 90-day altseason reading climbed to 70, with 28 of 40 sampled assets outperforming, while BTC's 90-day change was 26.9%.
Options keep $80K-$82K in focus
BTC options open interest was $35.0B at an index price of $81,241.45. The open-interest put-call ratio was 0.5644, below parity and consistent with heavier call positioning. Near-term max pain was $80,000 for Sep 20 and Sep 22, $80,500 for Sep 21, and $81,500 for Sep 23. The larger Sep 25 expiry is the outlier: $15.4B of open interest points to a $72,000 max-pain level, with calls at $9.9B and puts at $5.5B.
Verdict: The near-term bias is cautiously bullish while BTC holds the $80,000-$81,500 options zone and global OI stays near $124.0B without another liquidation spike. A sustained break below $80,000, followed by a retreat toward the $72,000 Sep 25 max-pain level, would invalidate that view; conversely, a hold above $81,500 would keep squeeze momentum intact. Data as of 08:05 Beijing time on Sep 20, covering Binance, OKX, Bybit and other major venues.