Shares of Ampco-Pittsburgh Corporation (AP) have lost 13.8% since the company reported its earnings for the quarter ended June 30, 2025. This compares unfavorably with the S&P 500 Index’s 1.2% gain in the same period. Over the past month, the stock plunged 12.8% against the S&P 500’s 2.5% rise.AP’s Revenue and Earnings PerformanceFor the second quarter of 2025, Ampco-Pittsburgh reported net sales of $113.1 million, up 1.9$110.9 million in the prior-year quarter, with growth in forged engineered produ ...