StockStory Warns Generac, JELD-WEN, Fortrea Overvalued After Rallies (GNRC, JELD, FTRE)

StockStory cautioned on May 29, 2026 that shares of Generac Holdings (GNRC), JELD-WEN (JELD), and Fortrea Holdings (FTRE) appear overvalued following sharp one-month gains, flagging elevated multiples despite positive momentum. Generac, up 10.3% over the period, trades at 30.6 times forward earnings. JELD-WEN surged 47.9% and now carries an enterprise value of 10.8 times forward EBITDA. Fortrea, a clinical research organization spun off from Labcorp, jumped 46.3% and holds a forward price-to-earnings ratio of 16.2. The firm advises that such stretched valuations may not be supported by long-term fundamentals, recommending investors approach the stocks with caution.