Shares of Gencor Industries, Inc. (GENC) gained 4.1% since the company reported results for the quarter ended Sept. 30, 2025, against a 0.4% decline in the S&P 500 Index over the same period. Over the past month, however, Gencor shares slipped 0.8%, lagging the S&P 500’s 2.8% advance.GENC’s Earnings SnapshotFor the fourth quarter of fiscal 2025, Gencor reported net revenues of $18.8 million, a decline of 10$20.9 million in the year-ago period. Gross profit margin narrowed to 24.2% from 25.6% a year e ...