Premarket pullback hits optical module and memory stocks after prior-session rally

News Editor

2026-07-22 08:30:27

U.S. stocks tied to optical modules and memory traded lower in premarket action on July 22 after posting strong gains in the previous session, according to market data cited by BlockBeats from BIT (Bit.com). The moves pointed to early profit-taking after a sharp run-up across both segments. In optical names, Coherent (COHR), Lumentum Holdings (LITE), Applied Optoelectronics (AAOI), Nokia (NOK), and Marvell Technology (MRVL) all slipped before the open, with most declines ranging from under 1% to more than 3%. Memory-related stocks showed a similar pattern. Seagate Technology (STX), Western Digital (WDC), SanDisk (SNDK), and Micron Technology (MU) were all lower in premarket trading after double-digit gains a day earlier. BlockBeats said the group was broadly down about 2% to 3.5% before the bell, describing the move as a technical adjustment following the previous day’s surge. The report added that capital remains concentrated in the AI infrastructure chain, with storage and optical interconnect names still benefiting from the expansion of AI server demand.

U.S. stocksPremarketOptical modulesMemory stocksAI infrastructureBit.comMarket analysis

U.S. optical module and memory stocks moved lower in premarket trading on July 22 after a strong rally in the previous session, according to BIT (Bit.com) market data cited by BlockBeats. The early move suggested some profit-taking ahead of the open.

Optical module stocks eased before the bell

Within the optical module group, Coherent (COHR) had closed up 11.15% at 317.220 in the prior session, then traded at 306.260 in premarket dealings, down 3.46%. Lumentum Holdings (LITE) had risen 9.41% to 837.560, then fell to 812.060 before the open, a drop of 3.04%. Applied Optoelectronics (AAOI) had gained 15.76% to close at 119.260, then slipped to 115.940 in premarket trading, down 2.78%.

Nokia (NOK) closed up 5.46% at 10.630 and was later quoted at 10.530 in premarket trading, off 0.94%. Marvell Technology (MRVL) had climbed 6.68% to 207.960, then traded at 202.720 before the bell, down 2.52%.

Memory names also retreated

Memory-related stocks showed the same pattern. Seagate Technology (STX) had closed up 11.14% at 891.830 and was quoted at 864.500 in premarket trading, down 3.06%. Western Digital (WDC) had risen 12.51% to 548.390, then fell to 530.000 before the open, a decline of 3.35%. SanDisk (SNDK) closed up 14.27% at 1589.400 and later traded at 1546.080 in premarket action, down 2.73%. Micron Technology (MU) had gained 12.17% to 970.820, then slipped to 944.550, down 2.71%.

Broad premarket move followed prior-day surge

BlockBeats said optical module and memory stocks were generally down about 2% to 3.5% in premarket trading, mainly reflecting a technical adjustment after the previous day’s sharp gains. The report added that capital is still concentrated in the AI infrastructure chain, while storage and optical interconnect companies continue to benefit from the logic tied to expanding AI server buildouts.

This article was originally published by Bit.Fan. For more cryptocurrency news and market insights, visit www.bit.fan.

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