Super Micro and Dell Drop 5% as AI Server Rally Reverses; Hewlett Packard Enterprise Falls 3%

The AI server trade that powered Super Micro Computer, Dell, and Hewlett Packard Enterprise to sharp gains is now snapping back fast, and the force behind the reversal has nothing to do with the companies themselves.

Published September 28, 2026, 12:01pm ET · 4 min read

Market Movers desk. Editor: David Moadel.

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A long, symmetrical hallway in a large data center, lined on both sides with dark, tall server racks. The racks glow brightly with intricate golden and orange light patterns, resembling active circuit boards or data streams. The dark, reflective floor shows the warm glow from the servers, creating a sense of depth and advanced technology.
A digital data center, representing the 'compute' assets strategist Anshul Sagar suggests are the future of investment, surpassing traditional bonds. © 24/7 Wall St.

Artificial intelligence (AI) server hardware is giving back a powerful run in one sharp reversal, and Super Micro Computer (NASDAQ:SMCI | SMCI Price Prediction) is leading the retreat. Super Micro Computer stock is down 5% to $41.24, handing back a week’s worth of gains in a single session.

Two large names are declining beside Super Micro Computer stock. Dell Technologies (NYSE:DELL) shares are following at nearly the same speed. Dell stock is down 5% to $537.50, a drop that nearly matches the slide in Super Micro Computer stock. Meanwhile, Hewlett Packard Enterprise (NYSE:HPE) stock is down 3% to $61.32, a softer retreat that still runs well ahead of the big technology funds.

The iShares U.S. Technology ETF (NYSEARCA:IYW) is down 1%, a far shallower decline for the sector as a whole. At the same time, the Invesco QQQ Trust (NASDAQ:QQQ) is down 1%, leaving large-cap tech in only modest retreat. Shares of all three hardware makers, Super Micro Computer, Dell and Hewlett Packard Enterprise, are falling far beyond either fund, which marks a concentrated unwind inside the AI server corner of technology.

Rate Repricing Hits a Crowded Hardware Trade

Market forces are driving the selling, with no company news from Super Micro Computer, Dell or Hewlett Packard Enterprise. The advance in AI server hardware through last week is declining as the market reprices rate expectations. Higher oil prices are reviving inflation concerns, lifting those expectations and weighing on anything priced for years of future growth.

Long-duration technology valuations adjust first when rate expectations move. Super Micro Computer, Dell and Hewlett Packard Enterprise shares have climbed sharply (we covered seven of the power, cooling, and networking suppliers riding this same expansion in a free AI infrastructure report). A fast climb leaves less cushion beneath a share price, so a shift in the discount rate can knock a high flyer back quickly, explaining why Super Micro Computer and Dell shares are down far more than funds holding a wider mix of companies.

What the Peer and Fund Figures Show

Dell shares are tracking Super Micro Computer stock almost step for step, a sign both are trading as one AI hardware position, and size offers little cushion since Dell ranks among the largest names in the group and still moves with the same urgency as SMCI stock. Among the hardest runners, Dell stock carries steep gains that can reverse fast when rate expectations jump.

Hewlett Packard Enterprise shares are holding up better than Super Micro Computer and Dell shares, though that slide still runs well past the drop in either fund. A slower decline during a sector unwind can point to less crowding in Hewlett Packard Enterprise heading into the reversal.

Technology as a whole is absorbing a softer hit. Both the iShares U.S. Technology ETF and the QQQ ETF are slipping by comparatively modest amounts, keeping the biggest selling inside the AI server group. This concentration puts the spotlight on Super Micro Computer, Dell and Hewlett Packard Enterprise shares.

Super Micro’s Demand Picture Against Its Funding Needs

SMCI price target

Super Micro Computer’s upside thesis rests on demand. The company stated last week that it had begun shipping its newest AI server racks, with a very large order book. On that view, the demand side looks intact, and the decline reads as a valuation reset.

SMCI earnings explorer

Cash is the heart of the bear case. Filling the order book consumes Super Micro Computer’s capital, so SMCI stock trades on funding capacity as much as on demand. A session that reprices rate expectations strikes at exactly that vulnerability, since higher rates can raise the cost of financing growth.

What the Reversal Means for Investors

A steadier read on rate expectations is worth watching, since rate pressure is driving the unwind. Cooler inflation data could let the AI demand story reassert itself, while another jump in oil prices might extend the decline.

Given how hard SMCI stock has run, keep your position sizes moderate and avoid letting one hardware name dominate your exposure. Dell and Hewlett Packard Enterprise shares carry the same rate sensitivity, so owning all three concentrates your risk in one corner of technology. Scaling into your holdings in stages can limit damage if the reversal deepens.

SMCI stock remains a clear gauge for the AI hardware trade from here. Shareholders could watch Super Micro Computer stock for signs of buyers returning at lower levels, which could help steady Dell and Hewlett Packard Enterprise shares too.

Contact [email protected] for any questions or corrections.

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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