According to Greeks.live, the largest options block trade today involved a Bitcoin Bear Ratio Diagonal Spread. The trade consisted of selling 1,024BTC in current month flat calls while buying 512BTC in next month vanilla calls, with a total notional value of $130 million. This strategic move suggests expectations of moderate Bitcoin price movements, leveraging the spread to potentially capitalize on volatility shifts. Such trades indicate a sophisticated market participant aiming to balance risk and reward through calendar spreads, which could influence traders' strategies in the coming weeks.