An inflation warning from JPMorgan Chase (NYSE:JPM) CEO Jamie Dimon sent JPM stock down despite an earnings beat. For the first quarter, the bank reported net income of $13.4 billion,$4.44 per share, on revenue of $41.9 billion. Analysts had expected earnings of$4.17 per share. JPM stock opened this morning at about $188 per share, and its market capitalization is about$544 billion. Dimon in the Rough Net interest income, the profit made from lending money, rose 11% from a year ago to $23.2 billion. But ...