亿万富翁投资者沃伦巴菲特（Warren Buffett）在5月份表示，他称之为“老鼠毒平方”的比特币买家茁壮成长，他们希望能找到能为此付出更多代价的其他人。比特币的狂热需求表明，加密货币背后的神秘感导致其价格飙升。
“如果你不理解它，你会变得更加兴奋，”巴菲特在CNBC电视台上说。 “人们喜欢猜测，他们喜欢赌博。”
在巴菲特的评论之后，比特币的价格为9,348.26美元，下降了322.98美元，约3.3％。
巴菲特认为现在拥有美国股票是更好的选择，虽然股票价格上升了一些，但却不算是泡沫。
巴菲特长期的商业合作伙伴兼伯克希尔副董事长查理·芒格Charlie Munger也不是比特币爱好者，称其为“毫无价值的人造黄金”。
87岁的巴菲特和94岁的芒格在内布拉斯加州奥马哈举行的伯克希尔年度股东大会之后举行了两天会议，预计这次会议将吸引超过40,000人参加。
巴菲特披露，伯克希尔第一季度已经购买了约7500万股苹果公司股票，增加了它已经拥有的1.653亿股。它现在拥有iPhone制造商5％的股份，仅落后于Vanguard Group和BlackRock Inc.巴菲特表示，如果推动回购，苹果股价将会下跌，他会很高兴。

Buffett is not optimistic about the prospects of Bitcoin

Billionaire investor Warren Buffett in May said buyers of bitcoin, which he has characterized as “rat poison squared,” thrive on the hope they’ll find other people who will pay more for it.
Buffett, the chairman and chief executive of Berkshire Hathaway Inc, said the mystique behind the cryptocurrency has caused its price to surge.
“If you don’t understand it, you get much more excited,” Buffett said on CNBC television. “People like to speculate, they like to gamble.”
In the wake of Buffett’s comments, the price of a bitcoin was at $9,348.26, down $322.98, or just over 3.3 per cent.
He said investors now are much better off owning U.S. stocks, whose prices are elevated but not in a “bubble.”
Charlie Munger, Buffett’s longtime business partner and a Berkshire vice chairman, is also no bitcoin fan, describing it as “worthless artificial gold.”
Buffett, 87, and Munger, 94, spoke two days after they presided at Berkshire’s annual shareholder meeting in Omaha, Nebraska, which was expected to have drawn more than 40,000 people.
Buffett renewed his desire to spend some of Berkshire’s low-yielding cash on a major acquisition. He said he would be happier if Berkshire had $30 billion US of cash and equivalents, not the $108.6 billion US it reported holding at the end of March.
Buffett revealed Berkshire had bought about 75 million additional Apple Inc shares in the first quarter, adding to the 165.3 million it already owns. It now has a five per cent stake in the iPhone maker, trailing only Vanguard Group and BlackRock Inc. He would be happy to see the Apple share price fall if it would spur repurchases.