BTC closed down 0.15 % on the day, trading between 80,751 and 81,733. The high came at 07:30 UTC and the low at 21:35 UTC.
Asia, London and New York, each summed up when it closes. Times follow local opening hours.
Written from the data, not opinion.
Options positioning puts the call wall at 90,000 and the put wall at 80,000. Dealers are estimated to be long gamma, where dealer hedging tends to dampen moves.
The bid wall at 81,201 held at 16:37 UTC: about 77 BTC traded into it and price turned 62 USD away.
At 22:36 UTC a 128 BTC bid wall at 81,150 was pulled before price reached it.
Classified from every trade at the wall's own price, not from candles. What is a liquidity wall?
| Event | Wall | Time |
|---|---|---|
| Held | Bid wall 81,201 77 BTC traded into it, price turned 62 USD | 16:37 UTC |
| Pulled | Bid wall 81,150 128 BTC wall, 113 BTC removed in 0.2 s, almost nothing traded | 22:36 UTC |
Deribit, OKX and Bybit open interest, end of day.
Under the usual sign assumption, dealers buy dips and sell rallies to stay hedged, which tends to calm the market around big strikes.
| Call wall Strike with the most call gamma | 90,000 |
| Put wall Strike with the most put gamma | 80,000 |
| Gamma flip Where total dealer gamma changes sign | 80,862 from 80,862 |
| Call wall 0DTE Expiring within 24 hours | 81,500 |
| Put wall 0DTE Expiring within 24 hours | 81,000 from 81,500 |
Largest walls within 2.5 % of price.
Share of all open BTC options.
| 18-OCT | 8,299 BTC | 1.9 % |
| 23-OCT | 18,972 BTC | 4.3 % |
| 30-OCT | 162,978 BTC | 36.7 % |
| 27-NOV | 30,474 BTC | 6.9 % |
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Open DepthMethod. Price, volume and order book from Binance USDⓈ-M BTCUSDT. Option levels use open interest from Deribit, OKX and Bybit with the common assumption that dealers are long calls and short puts; it is an estimate, not measured positioning. A wall is "held" when trades hit it and price turned, "pulled" when it vanished within seconds with almost nothing traded, "eaten" when most of it was traded away. Times are UTC. Updated 18 Oct 00:05 UTC.