Bitcoin climbed to $72,000 after the US and Iran agreed to a two-week ceasefire, even as $2.18 billion in BTC and ETH options head for Friday expiry. West Texas Intermediate crude fell as much as 19% after the announcement. Greeks.live analysts said falling implied volatility during the rally pointed to hedge unwinds rather than fresh bullish positioning. On April 10, Deribit is set to see $1.87 billion in BTC options and $310 million in ETH options expire as Washington and Tehran delegations are expected in Islamabad for more talks.