Bitcoin's derivatives engine just went into overdrive as futures open interest climbed to a record $91.59 billion while spot hovers near $123,142 at 9:30 a.m. Sunday. Bitcoin's Record Futures Stack Meets Call-Heavy Options Frenzy At the index level, bitcoin pushed through $125,725 this week before easing to $123,142, and the derivatives crowd didn't blink. Aggregate [...]