So how did the crypto options market price in the bitcoin (BTC) spot exchange-traded fund (ETF) launch? From a quick ex-post analysis of option implied vs subsequent realized volatility (see below), expectations in the markets have subsided after the event, and it looks like the bitcoin options market gang correctly priced in the market reaction while team ether options were asleep behind the wheel w.r.t. the rally in ETH post bitcoin spot ETF launch.