Apple(US:AAPL) Hua Er Jie Jian Wen·2025-08-14 06:32Group 1 - The market is focused on the upcoming 13F filing from Berkshire Hathaway, which will reveal Warren Buffett's latest holdings as of June 30 [1] - The filing is expected to clarify two key questions: whether Buffett has continued to reduce his stake in Apple and the identity of a mysterious investment totaling nearly $5 billion [1][2] - Speculation about the mysterious investment suggests it may be directed towards a large industrial company, as the "Commercial, Industrial, and Other" category in Berkshire's 10-Q report saw significant increases in investment costs [2] Group 2 - Berkshire Hathaway's reduction in its stake in Bank of America is almost certain, with holdings decreasing from 1.03 billion shares to 631 million shares, a drop of nearly 40% [3] - The largest uncertainty remains regarding Apple, which constitutes about 25% of Berkshire's stock portfolio, with a market value of $66.6 billion as of March 31 [3] - Buffett has indicated he may make "rational adjustments" to his holdings when valuations are appropriate, leading to speculation about potential reductions in the second quarter [3]