Berkshire Hathaway Inc.’s Class A shares touched $300,000 for the first time on Monday, another milestone for the conglomerate that Warren Buffett’s been building for more than half a century.

The shares, which have never split, traded at $300,000 at 10:54 a.m. Monday in New York. 

The shares ended the day at $299,360, up 1.04% from Friday’s close.

They’re up about 23 percent this year, slightly outperforming the S&P 500 Index, as investors bet that Buffett will be able to continue expanding his business with stock picks and acquisitions. 
 
The company may also be a  major beneficiary of the Republican tax-cut plan making its way through Congress.
 
About three years ago the Berkshire shares  crossed the $200,000 mark. It took almost eight years before that to climb from $100,000.
 
Buffett, 87, started accumulating the stock at $7.50 a share in December 1962.
 
— With assistance by Vincent Bielski, and Katherine Burton

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