BlockBeats News, July 22nd, according to BIT (bit.com) market data, the US stock optoelectronics sector saw a broad rally, with the Pure Photonic ETF FOTO surging over 9%, Coherent up over 11%, Lumentum up over 9%, Ciena up nearly 8%, II-VI Inc. and Corning up over 6%, and Credo up over 5%.