The Fed buys $305 million of corporate-debt ETFs to kick off its groundbreaking relief program

· *The Federal Reserve's new corporate-credit facility took in $305 million worth of exchange-traded funds on the first day of its operation, according to data released Thursday.*
· *The central bank's ETF purchases helped push its balance sheet total to a record $6.93 trillion in the week ended March 13.*
· *The purchases...