U.S. Republican presidential candidate Donald Trump on Tuesday brushed off billionaire investor Warren Buffett's blistering critique of his business acumen.

"I don't care much about Warren Buffett," Trump said on the FOX Business television network Tuesday morning, a day after Buffett lashed out at Trump in a speech at a campaign rally for Democratic candidate Hillary Clinton.

Buffett, a widely followed investor who is chairman and chief executive officer of Berkshire Hathaway Inc., scorned Trump's 1995 move to list Trump hotels and casino resorts on the New York Stock Exchange, saying it lost money for the next decade and that "a monkey" would have outperformed Trump's company.