Crash of TerraUSD Shakes Crypto. 'There Was a Run on the Bank.'

The cryptocurrency TerraUSD had one job: Maintain its value at $1 per coin.

Since it launched in 2020, it had mostly done that, rarely straying more than a fraction of a penny from its intended price. That made it an island of stability, a place where traders and investors could stash their funds in between forays into the otherwise frenzied crypto market.