Bitcoin closed the week with a rally, surpassing $26,000 for the second time this week. Ether rose 3.5 percent to $1,744.24. Digital assets are climbing as the fallout from Credit Suisse’s troubles, and the collapse of Silicon Valley Bank sends ripple effects through the banking sector. Analysts say that this could mark the beginning of a bull run for crypto, while others say that inflation and rising interest rates still make it highly speculative.