On October 30, more than 140,000 Bitcoin options worth $11.7 billion in notional value are set to expire: two-thirds are bets on calls, with the largest position at a $95,000 strike. But the settlement price most favorable to sellers is around $78,000—one side is betting on a 14% rise, the other on a 6% drop. $BTC is still hovering around $83,000, and the two sides are already fighting it out.