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Here's how much Warren Buffett has made from his massive investment in Apple

Warren Buffett’s Berkshire Hathaway (BRK-ABRK-B) bet big on Apple and is winning big, too. 

During the second quarter ended June 30, Berkshire Hathaway added nearly 12.4 million shares of Apple (AAPL), bringing its already massive stake in the iPhone maker to nearly 251.96 million shares, a position valued at over $52.8 billion when using Tuesday’s market close of $209.75.

The iPhone maker has been a great investment for Berkshire, though Buffett has historically shied away from tech companies. The “Oracle of Omaha” has hinted, however, that his investment deputies— Ted Weschler and Todd Combs— were responsible for buying Apple.

Warren Buffett’s Berkshire Hathaway has bet big on Apple. REUTERS/Rick Wilking/File Photo

According to data compiled by Bloomberg, Berkshire Hathaway’s average cost-basis has been $141.18 per share. That means Berkshire has seen paper gains of more than $17.2 billion on its position, according to our calculations.

Apple is Berkshire Hathaway’s largest equity position. Berkshire has been invested in the stock since the first quarter of 2016.

Buffett’s big Apple bet has been a huge winner for Berkshire Hathaway.

Julia La Roche is a finance reporter at Yahoo Finance. Follow her on Twitter.