According to CoinMeta, Warren Buffett's Berkshire Hathaway increased its stake in Delta Air Lines in the second quarter of 2026 by 44%, raising its holdings to 57.3 million shares with a market value of approximately $5.4 billion. Previously, in 2020, Berkshire sold all of its airline stocks due to the pandemic, incurring substantial losses. Delta Air Lines reported revenue of $17.7 billion in the second quarter, a 14% increase from last year. The company also expects earnings per share for the full year to be between $6.50 and $7.50, a 20% increase from last year.