He proved that with his big bad bet on IBM and now he's doing the same with Apple. To be sure, he has made money on his Apple bet so far, but his recent bigger bet on Apple's future growth is unlikely to pay off as well. If he really wants to make money investing in technology, he should invest in Amazon. As for Apple, Buffett began investing in its shares in mid-2016, ending the year with about 59 million shares. In January 2017, Berkshire boosted his stake to 133 million shares, giving it about 2.5% of Apple’s outstanding shares.

Source: Forbes February 15, 2018 18:00 UTC