TLDR
- Memory semiconductor stocks experienced significant losses Tuesday, with SanDisk plummeting 8.7% and Micron declining 8% following a dramatic overnight drop in South Korea’s KOSPI.
- Geopolitical tensions involving Iran sparked concerns over energy supplies, driving liquefied natural gas costs upward and triggering the selloff.
- Korean memory giants SK Hynix and Samsung suffered steep declines exceeding 5% and 11% respectively, creating spillover effects for American-traded counterparts.
- Mizuho’s Jordan Klein attributed the decline to stocks being “overbought” rather than deteriorating business fundamentals.
- Micron is scheduled to announce Q2 FY26 financial results on March 18, with UBS’s Timothy Arcuri projecting EPS of $85 compared to consensus estimates of $48.
Tuesday brought steep losses for memory semiconductor equities as escalating geopolitical risks centered on Iran drove energy costs upward, creating anxiety among South Korean chip manufacturers and pulling down their American peers in the process.
Overnight trading saw South Korea’s KOSPI benchmark index decline sharply as heightened Iran-related tensions pushed liquefied natural gas pricing higher. As one of the globe’s top LNG importers, South Korea’s semiconductor manufacturing facilities operate continuously and depend substantially on natural gas-powered electricity generation.
Elevated energy expenses create margin compression for these production facilities. While US natural gas contracts climbed approximately 7% over the preceding week, European markets experienced even steeper increases. A prolonged supply disruption connected to Iranian instability could intensify pressure on Korean semiconductor producers.
The most vulnerable players are Samsung Electronics and SK Hynix. Combined, these companies dominate global DRAM manufacturing and hold substantial NAND flash market share. Both maintain headquarters and primary manufacturing operations within South Korea.
SK Hynix tumbled 11.5% during overnight sessions. Samsung declined 9.9%. These losses translated directly into US market weakness when exchanges opened Tuesday morning.
US Memory Stocks Take the Hit
SanDisk experienced the steepest US declines, dropping 8.7% during Tuesday’s session. Micron retreated 8%. Western Digital declined 7.2%, while Seagate slipped 5.8%. Lam Research, a key equipment supplier to Korean manufacturing facilities, fell approximately 5%.
SanDisk’s decline followed an impressive rally period. The equity had climbed more than 40% across just five consecutive trading days entering February, meaning the selloff occurred from significantly elevated levels.
Seagate registered the group’s smallest percentage loss. Given its primary focus on traditional hard-disk drive manufacturing, the company maintains more limited exposure to NAND flash memory and Korean fabrication facilities, though it still participated in what appeared to be sector-wide “storage” selling pressure.
Analysts Say Fundamentals Remain Intact
Following Tuesday’s selloff, Mizuho analyst Jordan Klein characterized the decline as primarily reflecting South Korean equities being “overbought” rather than signaling fundamental business deterioration. He noted that significant Asian selling pressure warrants monitoring for potential impacts on US memory holdings.
Wall Street’s overall perspective on memory stocks continues trending positive. Industry analysts highlight robust artificial intelligence-driven demand, constrained supply conditions, and sustained pricing power as primary catalysts for future earnings expansion.
Capacity additions, however, confront genuine constraints. Cleanroom infrastructure remains limited, manufacturing equipment delivery timelines extend for months, and qualified engineering talent is scarce.
Micron delivered $13.64 billion in quarterly revenue during its most recent report, surpassing analyst estimates of $12.88 billion. The company will announce Q2 FY26 earnings on March 18.
UBS analyst Timothy Arcuri, holding a five-star rating, increased his Micron price target from $450 to $475. His next-year EPS forecast stands at $85, substantially exceeding the $48 Wall Street consensus estimate.
