Odaily Planet Daily News: Stimulated by the Bitcoin price breaking through $72,000, the options market today hit a one-month high in trading volume, and the bulk market was also extremely active, with call options trading at about $700 million and put options trading at about $300 million, with a total trading volume of more than $1 billion. It is worth noting that a proportional spread strategy transaction: a large investor sold 250 call options with an exercise price of $75,000 and bought 500 call options with an exercise price of $90,000, indicating that it expected Bitcoin to either not reach a new high or quickly hit $100,000 once it broke through. This trading strategy saved about $13,000 in slippage through bulk trading.