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Premarket Movers | Optical Stocks Extend Rally with POET up 14%; Rare Earth Stocks Surge with American Resources up over 12%; USA Rare Earth up over 5%

TigerMay 20, 2026 12:31 PM
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Optical communication stocks continued to jump in premarket trading. POET Technologies up over 14%; Applied Optoelectronics up 4%; Astera Labs, Coherent, Corning, Lumentum up around 3%.

Rare earth stocks surged in premarket trading. American Resources up over 12%; USA Rare Earth, UAMY up over 5%; Energy Fuels, MP Materials up about 4%.

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