Warren Buffett's Berkshire Hathaway reported another stellar quarter on Saturday, and the conglomerate revealed that more than three-quarters of its stock portfolio was tied up in just five names. The Omaha-based conglomerate said approximately 78% of the aggregate fair value was concentrated in five companies at the end of the third quarter. Buffett's juggernaut posted a big investment loss of $24.1 billion in the third quarter, largely due to a decline in its gigantic Apple stake. Shares of the iPhone maker fell 11.7% during the quarter. The other four top holdings remained unchanged last quarter: $22.6 billion worth of American Express , $28.3 billion of Bank of America , $22.4 billion of Coca-Cola as well as $18.6 billion of Chevron . Still, the "Oracle of Omaha" advised shareholders to ignore the quarterly fluctuations in Berkshire's equity portfolio. "The amount of investment gains/losses in any given quarter is usually meaningless and delivers figures for net earnings (losses) per share that can be extremely misleading to investors who have little or no knowledge of accounting rules," Buffett said in a statement. Correction: A previous version misstated the value of Berkshire's top holdings.
