Why Is Lumentum (LITE) Stock Price Down 8.61% Today, August 10? AI Optics De-Risking Builds Ahead of Earnings

Lumentum shares sold off as traders reduced exposure to crowded AI-optics positions ahead of its Aug 11 earnings, with broad weakness across U.S.-listed photonics peers reinforcing a sector-wide de-risking narrative rather than company-specific bad news. Higher oil and rising Treasury yields were cited as additional headwinds for long-duration tech valuations. Near-term focus shifts to guidance on optical demand and margins, where positioning sensitivity is elevated.