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Dell and HPE Surge While Speculative Nuclear Bets Sink

A wild session split the market's biggest movers along a clear line: established AI-hardware winners rallied hard, while pre-revenue, sentiment-driven names — especially small modular reactor stocks — sold off sharply.

7 min read
Published Sep 11, 2026

Today's list of biggest gainers and losers tells a coherent story once you look past the individual tickers. On a day when the broader market rallied and the VIX collapsed more than 11%, the stocks that moved the most split cleanly along one line: established AI-infrastructure hardware names with real, growing revenue rallied hard, while speculative, pre-revenue plays — especially small modular reactor (SMR) nuclear developers — sold off sharply. A handful of smaller, thinly traded names also swung double digits on both sides, as they often do on high-volatility sessions, though confirmed catalysts for those specific moves weren't independently verified.

A note on the data: the values below are drawn from an intraday snapshot and may not reflect final closing prices. We weren't able to independently confirm more current end-of-day prints for every name at publication, so treat exact figures as approximate until markets close.

Today's top gainers

  • Dell Technologies (DELL), $559.30, +10.35%. Extending 2026's AI-infrastructure rally; Dell has repeatedly surged on strong server/AI-hardware demand this year, and today's move looks like part of the same broader AI-hardware enthusiasm lifting the semiconductor and infrastructure trade following Oracle's earnings.
  • Hewlett Packard Enterprise (HPE), $61.30, +10.94%. Moving in tandem with Dell as an AI-server and networking peer; HPE has had numerous double-digit swings this year tied to AI-demand sentiment and analyst price-target changes, and today's gain fits that pattern.
  • Vicor Corp (VICR), $197.98, +11.25%. A power-delivery components maker whose modules feed AI server racks; moves with the broader AI-hardware capex trade.
  • Hut 8 Corp (HUT), $99.45, +9.61%. A bitcoin-mining and data-center operator; no single confirmed catalyst for today specifically, but crypto-adjacent infrastructure names often track both bitcoin sentiment and the broader AI-data-center narrative.
  • ACV Auctions (ACVA), $10.42, +44.39%. The session's single biggest percentage gainer among more widely known names; a move of this size typically points to a specific company catalyst (earnings, an upgrade, or deal news) that wasn't independently confirmed at publication.

Several smaller, less widely followed names also posted outsized percentage gains today — TCGLF (+123.88%), XHLD (+21.50%), SWMR (+9.42%), SXTC (+28.24%), PMI (+14.51%), HTFL (+10.20%), TNON (+9.62%), NCRA (+19.36%), ODD (+16.91%), AQB (+11.32%), AAPI (+18.82%), NCTY (+15.51%), GNLN (+16.86%), GAUZ (+11.77%), and BW (+9.73%) among them — consistent with the low-float, high-volatility trading that's typical of micro-cap stocks on any active session. We're not attaching specific catalysts to those moves without a confirmed source.

Today's top losers

  • NuScale Power (SMR), $8.79, -14.00%. A pre-revenue small modular reactor developer whose stock has been extremely volatile all year, with double-digit single-day moves common in both directions; no single new catalyst confirmed for today.
  • Oklo Inc (OKLO), $36.30, -9.03%. Another pre-revenue SMR developer; the stock is already down roughly 60% from its 2025 peak and trades heavily on AI-power-demand sentiment rather than fundamentals, making it prone to sharp swings on shifting risk appetite.
  • DigitalOcean (DOCN), $122.90, -6.19%. No confirmed company-specific catalyst found for today's decline.
  • Cheetah Mobile (CMCM), $3.05, -8.64%. No confirmed company-specific catalyst found for today's decline.
  • ProShares VIX Short-Term Futures ETF (VIXY), $17.25, -5.04%. A mechanical, not sentiment-driven, move: VIXY tracks VIX futures, and the VIX itself fell more than 11% today as the CPI-report uncertainty passed. VIXY's smaller decline versus spot VIX reflects the futures-based structure of the product.
  • Citi Trends (CTRN), $60.32, -5.69%. No confirmed company-specific catalyst found for today's decline.

As with the gainers list, a number of smaller names also posted sharp declines — ADBT (-26.50%), DAIC (-11.20%), SWVL (-9.89%), HKIT (-5.10%), SGLY (-19.90%), WETO (-6.20%), SLS (-14.20%), SNYR (-8.15%), ALMS (-6.41%), MODD (-5.68%), SPRY (-5.63%), LNSR (-5.09%), WVVIP (-10.60%), and WLDS (-5.93%) among them. Several of these are thinly traded micro-caps where large percentage moves on modest dollar amounts are common and don't necessarily reflect company-specific news.

The pattern underneath the noise

The clearest thread connecting today's biggest moves is a rotation, not a single story: money moved toward AI-infrastructure names with real, growing revenue (Dell, HPE, Vicor) and away from speculative, pre-revenue bets on future AI-driven power demand (Oklo, NuScale). That's consistent with the broader tape today, where an Oracle-earnings-driven rally in established semiconductor and hardware names coincided with a sharp VIX decline — a market rewarding demonstrated execution over speculative narrative on a day when risk appetite was already running hot.

VIXY's decline is the outlier worth understanding separately: it's not a sentiment call on any company, just the mechanical result of the VIX itself falling sharply as today's inflation-data uncertainty resolved.

Worth remembering: several of today's biggest percentage movers are thinly traded, low-float, or pre-revenue names where large swings can happen on relatively little news or volume. Treat outsized moves in these names as signals to investigate further, not as standalone investment theses.

This platform, including MarketCatalyst LLC, is not a registered investment advisor and doesn't manage client assets. Content here is for informational and educational purposes only — not investment advice, and not a stock-picking or trade-alert service. Trading stocks and options carries risk, including possible loss of principal. Consider your own goals, time horizon, and risk tolerance, and consult a qualified financial advisor before making any investment decisions.

Dell and HPE Surge While Speculative Nuclear Bets Sink - Sep 11, 2026