StockStory Targets Sanmina as Opportunity, Warns on AeroVironment and Markel Group

Investment research firm StockStory on June 1, 2026 identified Sanmina (NASDAQ:SANM) as a mid-cap stock with strong potential, while advising investors to avoid AeroVironment (NASDAQ:AVAV) and Markel Group (NYSE:MKL) due to elevated valuations. Sanmina, an electronics manufacturing services company valued at $13.92 billion, traded at $259.59 per share, or 22.4 times forward earnings. StockStory pointed to the company’s established business model and broad addressable market as factors supporting its outlook. Conversely, AeroVironment, which develops unmanned aircraft systems for defense, was flagged at $207.92 per share and a forward price-to-earnings ratio of 55, with a $10.44 billion market cap. Markel Group, a specialty insurer with investment and operating business units, traded at 1.2 times forward book value, or $1,818 per share, for a $22.72 billion market capitalization. StockStory cited richer relative valuation as grounds for caution on both names.