At 04:00 UTC today BTC printed an hourly volume spike â 6Ă the weekly median â and ran from 85,450 to 86,900. Then, for the four hours into the 08:00 UTC expiry, price sat almost exactly on 86,000 â the largest strike of the expiring series.
Day and week (expiries Oct 3 and Oct 4, 08:00 UTC) âą Gamma flip: 85,990 (day) / 85,770 (week). Price is just above it: dealers are long gamma and dampen moves, but the cushion is thin. âą Call wall 87,000, put support 85,000, magnet 86,000. âą Below ~85,800 the regime turns: dealers hedge by selling into drops.
Month (expiry Oct 30) âą Call wall and magnet at 90,000, then 95,000 â the largest nodes in the whole BTC options market. âą Put support 85,000; the monthly flip is far below at 82,400.
Across all expiries the market is in a "calm" regime: the flip sits at 78,400 and large moves tend to get absorbed.
On volume spikes. We tested the history. In BTC, an hourly volume spike of 5Ă the weekly median happens about twice a week, most often around 13:00â15:00 UTC (US open and data releases). After a spike, a strong move within the next 4 hours (two typical 4-hour moves or more) happens about 3Ă as often as usual â in BTC, ETH and SOL alike, across all years tested. The direction, however, is a coin flip: continuation and reversal are equally common. A spike tells you a move is likely â not which way.
Nobody knows where price goes next. What you can see is where moves get braked and where they get pushed.
Data: Deribit, Bybit, OKX and Binance options, combined; spot candles and volume from Binance. Levels snapshot Oct 2, 2026, 10:16 UTC. Volume-spike statistics: BTC hourly candles over 2 years; the "3Ă as often" result is pooled over BTC, ETH and SOL hourly data since 2017, checked separately on 2017â2022, 2023â2024 and 2025â2026
