Why did Silicon Valley Bank collapse and are other lenders at risk?

Silicon Valley Bank (SVB) collapsed last Friday, sending ripples through global markets (Mads Claus Rasmussen/AP)
The collapse of the 16th largest bank in the US sent ripples through global markets on Monday as governments and businesses scrambled to figure out what the impact would be and how it could be contained.
Silicon Valley Bank collapsed on Friday after failing to raise new capital last week.