It's been an unusually good year for stocks so far.

Wall Street has managed to weather or shrug off repeated worries over trade tensions with China, tariff threats against Mexico, Middle East tensions between the U.S. and Iran and the near constant headline risk posed by President Donald Trump's relentless tweeting on all things economic and political.

Set against that backdrop, patient investors have seen the best six months in decades coming as the bull market has passed its 10th birthday.

Legendary investor Warren Buffett has done OK, too.

Forty-three of the stocks in his Berkshire Hathaway portfolio as of the last declaration to the SEC went up during the first half of the year.

His big winners include StoneCo shares (STNE) - Get Report , up 60% to $29.58 since Jan., Synchrony Financial (SYF) - Get Report , up 48% to $34.67 and VeriSign (VRSN) - Get Report , up 41% to $209.16.

But even the greats hit some mulligans.

For Buffett, the four stocks in the Berkshire Hathaway portfolio that have lost ground this year are:
Sirius XM (SIRI) - Get Report , off 2.3% to $5.58; Bank of New York Mellon (BK) - Get Report , down 6.2% to $44.15; Kraft Heinz (KHC) - Get Report , down 28% to $31.04 and Teva Pharmaceutical ADRs (TEVA) - Get Report , down 40% to $9.23.

As for Berkshire itself, Berkshire Hathaway A shares (BRK.A) - Get Report are up 4.04% to $318,350.00 for the year, while Berkshire Hathaway B shares (BRK.B) - Get Report are up 4.4% to $213.17.

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