Why Is Lumentum Stock Surging on Tuesday?

Stock Market Today, Sept. 8: Stocks Slide Amid Surging Oil Prices, Persistent Geopolotical Tenisons

Major stock indices declined on September 8, 2026, as rising crude oil prices approaching $100/barrel and geopolitical tensions weighed on markets. The Dow fell 1.18%, S&P 500 dropped 0.58%, and Nasdaq declined 0.31%. Notable movers included Intel gaining 9% on pricing plans, Corning rising 7% on a Verizon fiber deal, while Amgen and Novartis fell sharply following a drug trial setback. Qualcomm signed a major AI chip deal with Amazon worth up to $60 billion.

Why Is Applied Optoelectronics Stock Surging Tuesday?

Applied Optoelectronics (AAOI) stock surged over 9% after Corning and Verizon's major optical fiber deal boosted the sector.

Corning shares are trading higher after the company announced a multi-billion dollar agreement with Verizon for 80M+ miles of high-density optical fiber and connectivity solutions from 2027 to 2032.

S&P 500, Nasdaq Slip as $98 Brent Reignites Inflation Fears: Stock Market Today

Crude near $98 pushes the 10-year Treasury yield above 4.8% for the first time since 2023, hammering the Dow as traders price a Fed rate hike next week.

Shares of fiber optic connectivity companies are trading higher amid sympathy with Corning after that company announced a multi-billion dollar agreement with Verizon for 80M+ miles of high-density optical fiber and connectivity solutions from 2027 to 2032.

Is COHR Stock a Buy as AI Growth Meets Premium Valuation and Risk?

Coherent Corp. is projected to deliver strong fiscal 2027 revenue growth of 50.1% and earnings growth of 67.2%, driven by AI-optics demand. However, the stock trades at a premium 26.5X forward earnings with rising capital expenditures and weakening operating cash flow, creating execution risks. While earnings estimates are rising favorably, valuation and cash-flow pressures present concerns for investors.