BTC options gamma shift weakens $88,000–$90,000 support, may amplify volatility

On-chain data analyst Murphy said on Jan. 19 that Bitcoin's options structure has shifted, with the $88,000 strike flipping from Long Gamma on Jan. 12 to Short Gamma, while the $90,000 strike remains in Long Gamma but its GEX dropped from $1.2 billion to $590 million, significantly weakening support in the $88,000–$90,000 zone. Murphy noted GEX at $92,000 climbed to $1.4 billion, a configuration that could amplify BTC price volatility. He added that URPD data show little change in coin distribution, with heavy positioning still concentrated between $87,000 and $92,000, the strongest current support band and hard to break. Murphy said if BTC were pushed below this range, the probability of price moving down to fill the lower gap would increase, with the midpoint of the double-anchor structure estimated around $72,000–$74,000.