10 Stocks Surprise Wall Street with Double-Digit Gains

4. Gentex Corporation (NASDAQ:GNTX)

Gentex soared by 19.52 percent week-on-week, ending at $27.42 on Friday versus $22.94 on July 18, as investor sentiment was boosted by its impressive earnings performance in the second quarter of the year despite a cautious outlook for the remainder of 2025.

In its earnings statement, Gentex Corporation (NASDAQ:GNTX) said attributable net income grew by 11.6 percent to $96 million from $86 million in the same period last year, excluding the impact of its acquisition of VOXX International Corp.

Meanwhile, net sales increased by 14.8 percent to $657.86 million from $572.92 million year-on-year.

Looking ahead, Gentex Corporation (NASDAQ:GNTX) said it expects global light vehicle production for the third quarter of the year to end relatively flat versus the same period last year, while light vehicle production in its primary markets is expected to dip by 1 percent year-on-year.

For the fourth quarter, global light vehicle production is predicted to drop by 6 percent year-on-year across its primary markets, including China.