BlackRock (NYSE:BLK) CEO Larry Fink has acknowledged Bitcoin as a legitimate financial instrument in an interview with CNBC’s Jim Cramer. What Happened: “I was a proud skeptic, and I studied it, learned about it, and I came away saying, okay, you know, my opinion [for] five years was wrong,” Fink said about his previous skepticism. BlackRock's iShares Bitcoin Trust (NASDAQ:IBIT) has become the largest spot Bitcoin (CRYPTO: BTC) ETF by market cap, reinforcing Fink’s view that Bitcoin is akin to d