Warren Buffett on Monday assured Berkshire Hathaway shareholders they should stick around as he prepares to depart as chief executive, giving a full-throated endorsement to his successor Greg Abel and promising to remain a major shareholder.

Berkshire Hathaway was crushing the major indexes earlier this year as investors flocked to safe stocks amid tariff uncertainty. But the market has recovered and megacap growth stocks are roaring to new heights -- including Nvidia becoming the first company to surpass $5 trillion in market cap.

Warren Buffett told Berkshire Hathaway shareholders, in a Thanksgiving letter, he plans to "step up" charitable giving from his $150 billion estate.