A Brinks armored truck sits parked in front of the shuttered Silicon Valley Bank (SVB) headquarters on March 10, 2023 in Santa Clara, California.
A Brinks armored truck sits parked in front of the shuttered Silicon Valley Bank headquarters on March 10.
  • SVB's dramatic collapse Friday has plunged the US banking sector into turmoil.
  • The California bank held $209 billion in assets when it failed, according to the FDIC.
  • Here's how the implosions of SVB and Signature compare to the biggest banking collapses ever.

The back-to-back collapses of two large lenders has plunged the US banking sector into turbulence.

Silicon Valley Bank failed Friday after disclosing massive losses on its bond portfolio, triggering a bank run and an 86% tumble in its share price.