Gentex Corporation (NASDAQ: GNTX) delivered record second-quarter earnings per diluted share of $0.54, a 26% gain over Q2 2025, even as net sales slipped 1% to $651.3 million. The case for the Zeeland, Michigan auto supplier is a margin expansion story. The risk is that the story includes $18 million of IEEPA tariff reimbursements that reduced cost of goods sold, while the core automotive business contracted in China, Europe, and the Japan/Korea region.
Gross margin climbs 280 basis points, partly on tariff relief
The 37.0% gross margin is the headline number. It beat Q2 2025 by 280 basis points and Q1 2026 by 320 basis points. CEO Steve Downing said roughly $38 million in IEEPA tariff reimbursements were received during the quarter, of which approximately $18 million flowed through as a reduction in cost of goods sold. The remaining sequential improvement, Downing said, came from favorable product mix, disciplined execution, and improving profitability within the Other Products segment. Operating expenses fell to $99.7 million from $106.8 million a year ago, with the prior-year figure elevated by severance costs.
Where automotive held and where it did not
Automotive net sales were $560.1 million, down from $578.1 million in Q2 2025. The damage was concentrated. China revenue fell approximately 20% quarter over quarter, which Downing attributed directly to tariff-war pressure. International interior mirror unit shipments dropped 26% over the same period. North America partially offset those declines, and new Driver Monitoring System and In-Cabin Monitoring System launches in Europe helped contain the regional impact.
Outside automotive, the picture was clearer. Premium Audio revenue reached $51.7 million, up 16% quarter over quarter. Aerospace, Biometrics, Fire Protection, and Automotive Aftermarket lines collectively grew approximately 12% over the same period. Non-automotive revenue accounted for roughly 14% of total company sales for the quarter.
The counterargument
The counterargument deserves its own paragraph. Gentex's own beginning-of-quarter forecast expected more. Mirror unit shipments came in approximately 3% below that forecast; revenues fell about 5% short. That volume gap, on the company's core product in its largest segment, is not a rounding error. If China pressure persists and European volumes stay soft, the tariff reimbursement tailwind becomes a harder comp in the back half, not a structural improvement. COO and CTO Neil Boehm pointed to ongoing investments in automation and operational efficiency, but those benefits remain tied to technology launches that are still building adoption.
On balance
Gentex earned $114.7 million in net income on a GAAP basis, up 19% year over year, and bought back 2.7 million shares for $66.0 million during the quarter. Income from operations reached $141.3 million, also up 19%, showing genuine earnings power beneath the tariff math. The line to watch: whether Q3 China automotive revenue stabilizes or extends its 20% quarterly decline.