Wall St regains some ground after big stocks rout

Wall Street's main indexes rose in volatile trading on Tuesday, as investors looked for bargains after a rout in the previous session, while dovish rate commentary from Federal Reserve officials also lifted the mood.

Most megacap and growth stocks, which together lost $200 billion in market value on Monday, gained as Nvidia (NVDA.O), opens new tab bounced back 2.3%.

Apple (AAPL.O), opens new tab slipped 1.9%, extending a nearly 5% drop on Monday after Warren Buffett's Berkshire Hathaway (BRKa.N), opens new tab cut its stake in the iPhone maker by half.