Warren Buffett's Berkshire Hathaway has significantly reduced its Apple stake, selling nearly half of its shares, which has contributed to a broader stock market sell-off. Berkshire's Apple holdings were valued at $84.2 billion at the end of Q2, down from $135.4 billion three months earlier. This move is part of a broader strategy where Buffett has been selling off stocks and increasing cash reserves, which now total nearly $277 billion, an all-time high. Analysts interpret this as a defensive maneuver in response to overvalued markets and economic uncertainties, including weak tech earnings and a disappointing jobs report. Despite the sell-off, Apple remains Berkshire's largest investment. The reduction in Apple shares and the accumulation of cash reflect Buffett's cautious stance on current market conditions and his difficulty in finding attractive investments.