Berkshire Hathaway sold a significant portion of Apple shares, affecting S&P 500 index rebalancing.

Warren Buffett's Berkshire Hathaway sold a significant portion of Apple shares, allowing Apple's true value to be fully reflected in major stock indexes, particularly the S&P 500. This change, from a 94% to 100% weighting, could require passive funds tracking these indexes to buy up to $40bn of Apple stock during their next rebalancing, impacting other companies in the index gauges. The first revisions are expected next month.