FTX-linked Silvergate's shares plunge 48% after the crypto bank flags doubts about its survival

• Silvergate shares fell 48% after it said it's evaluating "its ability to continue as a going concern."
• The crypto-friendly lender has delayed filing its annual report with the SEC.
• Its finances have been hit by the crypto rout and the fallout from the implosion of client FTX.

Silvergate Capital's shares plunged over 48% Thursday after the FTX-linked lender delayed filling its annual report with the Securities and Exchange Commission and flagged doubts about its business survival.