A bottom-line beat in its inaugural quarter of 2025 drove Axcelis Technologies’ (NASDAQ: ACLS) share price up by 10% over the past week, according to S&P Global Market Intelligence. On Tuesday, Axcelis reported first-quarter revenue of $192.6 million, significantly lower than the over $252 million earned in the same quarter of 2024. Despite the revenue decline, the positive earnings performance contributed to the stock’s increase.