(Bloomberg) -- Cryptocurrency investors waded back into the market last week, riding a surge in Bitcoin. Most Read from BloombergNewsom Says California Is Now the World’s Fourth-Biggest EconomyAt Bryn Mawr, a Monumental Plaza Traces the Steps of Black HistoryUS Cricket Deepens Bet on Texas With HQ Shift From CaliforniaLos Angeles Downgraded to AA- by S&P Due to Budget WoesThe Last Thing US Transit Agencies Should Do NowExchange-traded funds tracking Bitcoin and Ether attracted more than $3.2 bil