Crypto bank Silvergate says it'll shut down as the market meltdown claims its first mainstream casualty

• Silvergate Capital said Wednesday it plans to write off its assets and wind its business down.
• The crypto-friendly bank has felt the brunt of rising interest rates, FTX's collapse ad .
• Silvergate shares plunged 43% to under $3 in premarket trading Thursday.

Silvergate Capital has become one of the first mainstream victims of the crypto crash, saying that it plans to voluntarily write off its assets and close its bank down.