The stock market's most-decorated money manager has been holstering his company's capital for more than two years for a very good reason.

Warren Buffett has sold over $174 billion in stocks across 10 straight quarters, signaling his concern that the market is overpriced and favoring cash for future deals.

Warren Buffett has been a net seller of stocks in recent quarters and has built up a record stockpile of cash. The famous investor shared his thoughts on the market this past weekend at Berkshire Hathaway’s annual shareholder meeting.