ARB Explodes 14.2% as Open Interest Jumps 28% — OKX Book Grows 48% in a Day
Arbitrum is today's momentum trade: ARB jumped 14.2% to $0.1597 while futures open interest surged 27.7% to about $210 million — leverage chasing a fundamental catalyst at full speed. OKX's ARB book alone grew 48.4% in 24 hours, with Binance adding 22.7% to $50.6 million and Bybit 20.2% to $39.3 million.
News context: Cointelegraph reported Standard Chartered's call that Arbitrum could outperform bitcoin and ether through 2030 — the research note that lit the fuse under the token.
Shorts broke first, and the ladder shows it
The 24-hour liquidation tape ran $3.4 million against shorts versus $2.5 million against longs — a rally that fed on forced covering. The largest short wipeouts printed at $0.14684 on Binance and $0.16781 on Bybit, bracketing the entire move, while the deepest long liquidation at $0.13868 marks the launch floor. Notably the 1-hour window flipped: $308K of longs liquidated against $19K of shorts, meaning late chasers are already getting clipped on retracements — a maturing move, not a fresh one.
Funding and basis tell a two-speed story
Even after 14%, funding averages slightly negative at -0.003% with 10 of 22 venues below zero — Bitget at -0.015%, OKX at -0.0065% — so a meaningful cohort of shorts is still fighting the trend and paying for it. Meanwhile the futures basis has swung to +9.2% annualized, one of the few positive-carry curves in the entire market right now (BTC sits at -10.5%). Positive basis plus lingering negative funding equals a squeeze that has not finished consuming its fuel, though the 4-hour RSI at 66.2 shows the easy part of the move is done.
Levels for the chase and the fade
Our read: ARB has real fuel left while stubborn shorts pay negative funding into a positive-basis rally, but a 28% OI build in one day cuts both ways — those are fresh positions with tight liquidation prices stacked just below market. The $0.1678 print where Bybit's big short died is the pivot: acceptance above it opens a run at $0.18 with short-covering as the engine. A rejection that breaks back below $0.15 would flip the fresh long cohort into the liquidation pipeline, targeting the $0.1468 shelf. For traders, the disciplined play is buying pullbacks that hold $0.15, not chasing green candles at a 66 RSI. Watch funding: a flip to broadly positive marks the moment the crowd finally agrees — which is usually one candle before the local top.
Data as of 19:25 Beijing time on Sept 16, covering Binance, OKX, Bybit, Bitget, Gate and other major exchanges.