SK Hynix Drops 6% as Bloomberg Puts $100B Value on Potential Solidigm IPO; Micron and Western Digital Fall 4%

A Bloomberg report on a potential Solidigm IPO sent shockwaves through memory stocks Monday morning, but the selloff raises a deeper question about whether spinning out SK Hynix's storage unit actually destroys value for existing shareholders or quietly unlocks it.

Published September 28, 2026, 11:03am ET · 3 min read

Market Movers desk. Editor: David Moadel.

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Handful of Memory Modules (DRAM, NAND)
© Shutterstock

Memory stocks are sliding after a report that SK Hynix (NASDAQ:SKHY) could take its U.S. storage unit public as a separate company. SK Hynix stock is at $180.31, down 6% in early trading. Bloomberg reported over the weekend that Solidigm, the data-storage subsidiary SK Hynix owns, is weighing a U.S. initial public offering (IPO).

The Roundhill Memory ETF (CBOE:DRAM) is down 5%, a steep drop for a fund built around memory chipmakers. Meanwhile, the Invesco QQQ Trust is down 1.5%, so the memory ETF is dropping far harder than the large-cap tech benchmark. That gap shows the pressure is concentrated in memory and storage names.

Micron Technology (NASDAQ:MU | MU Price Prediction) shares are at $1,039.26, down 4% as the U.S. memory maker tracks its Korean rival lower. Similarly, Western Digital (NASDAQ:WDC) shares are at $438.05, down 4%, extending the damage into hard-drive storage. Additionally, SanDisk shares are down 5% to $1,682.95, adding a direct NAND flash rival to the decline.

Solidigm Report Revives Ownership Worries

According to Bloomberg, Solidigm is considering a U.S. IPO as soon as next year valued at as much as $100 billion. SK Hynix has yet to announce a final decision on a listing.

The report revived concerns about SK Hynix’s structure, since a separate Solidigm listing would add another ownership layer. In August, the Korea Corporate Governance Forum urged SK Hynix to drop the plan.

Memory Fund Falls Far Harder Than Tech

Concentration explains much of the Roundhill Memory ETF’s steeper slide. As of May 11, SK Hynix carried a 24.2% weight in the fund, with Micron at 23.8% and Samsung Electronics at 25%. Three memory giants sit at the core of the portfolio. A hit to SK Hynix and Micron therefore feeds straight into the fund’s price.

Micron has quarterly results due later this week, putting the company in a spotlight its peers don’t share. Those results could show whether AI demand for memory is strong enough to outweigh sector repricing concerns.

MU earnings explorer

Western Digital sells hard drives, which places the company a step removed from the NAND flash business at the center of the Solidigm story. However, Western Digital shares are sliding with the group as storage names reprice on the IPO headline. SanDisk, which was spun out of Western Digital, offers the closest listed comparison for how a standalone Solidigm might be valued.

Considering the Bull and Bear Cases for SK Hynix

Unlocking value usually lifts a parent company, so the SK Hynix stock decline stands out. Skeptics argue that listing Solidigm separately adds another ownership layer investors already struggle to value, giving a slice of future earnings to outside owners.

On the bullish side, a separate listing could establish a public price for an asset the market currently discounts inside SK Hynix. A public Solidigm price tag could give investors a clearer way to value SK Hynix’s high-bandwidth memory franchise on its own.

SK Hynix holders face two distinct pressures: oil-driven risk aversion and the Solidigm governance debate, where weakness tied to oil could fade as markets settle but governance-driven selling could linger until the company clears up its plan.

What to Watch Next

A formal statement from SK Hynix on Solidigm is worth watching for, since a filing, a timeline or a response to the governance critics could change the debate. Micron’s upcoming results are the next scheduled test for memory view across the group.

Memory stocks are moving as a pack, so investors holding SK Hynix, Micron and Western Digital together may find their exposure more concentrated than it looks. For SK Hynix holders, sizing their positions modestly until the Solidigm plan clears up can help cushion governance headlines. Micron and Western Digital holders are wise to hold moderate allocations given how tightly memory names are trading together.

Oil prices add a second source of uncertainty for SK Hynix, Micron and Western Digital alike. A set exit level can help investors manage their risk while both the Solidigm story and the oil-driven selloff play out.

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David Moadel

David Moadel is financial writer specializing in stocks, ETFs, options, precious metals, and Bitcoin. David has written well over 1,000 articles for leading online publications, helping investors understand markets, income strategies, and risk.His work has appeared in The Motley Fool, InvestorPlace, U.S. News & World Report, TipRanks, ValueWalk, Benzinga, Market Realist, TalkMarkets, Finmasters, 24/7 Wall St., and others.With a master’s degree in education, David has taught at the elementary, high school, and college levels. That teaching background shapes his writing style: clear, educational, and practical. David has also built a loyal social-media audience by providing trustworthy financial content on YouTube, X/Twitter, and StockTwits.

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