Crypto investors endured one of their toughest week in years as a wave of selling wiped out hundreds of billions of dollars from digital asset markets. Bitcoin BTC$61,267.78 fell 17.3% this week while ether (ETH) dropped 22%, putting both assets on track for their largest weekly declines since November 2022, when the collapse of Sam Bankman-Fried's FTX exchange triggered a market-wide panic.