Optical-module and storage stocks broadly advanced in U.S. premarket trading on Aug. 27, according to data from BIT (bit.com) cited by BlockBeats. Lumentum rose 3.15% to $968.600, Coherent gained 4.35% to $307.183, Applied Optoelectronics climbed 5.40% to $119.900, Nokia increased 2.79% to $10.700 and Marvell Technology advanced 4.95% to $257.250. In storage stocks, Western Digital rose 4.72% to $491.000, Seagate Technology gained 4.68% to $886.010, SanDisk climbed 4.95% to $1,575.630 and Micron Technology increased 4.46% to $980.246.