Even after giving away more than half his Berkshire stock since 2006, Buffett likely will be left with about 198,119 Berkshire Class A shares after the new donations—a stake wor

Warren Buffett believes that investing in an S&P 500 no-load fund is the best shot at strong returns over the long term.

In summary, Alphabet has become one of the clear leaders in AI, and that should help insulate it from potential disruption. However, investors like Buffett might feel the company's future is too uncertain to buy the stock with conviction. On the other hand, I think its cheap valuation offers sufficient compensation for the known risks.