Stock Markets May 29, 2026 10:31 AM

Big Moves in Stocks: Dell and NetApp Lead Gains as Broad Swings Hit Markets

Tech names account for many of the day’s largest percentage moves while select retailers and mid-caps slide

By Sofia Navarro
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DELL IBM PLTR ORCL QCOM

Friday trading produced wide swings across market-cap ranges, with several large technology companies posting notable gains and other issuers, from retail to special-purpose acquisition vehicles, recording sharp declines. Dell and Network Appliance were among the biggest winners, while a number of mid-cap and small-cap names moved lower amid earnings, guidance and other company-specific developments.

Big Moves in Stocks: Dell and NetApp Lead Gains as Broad Swings Hit Markets
DELL IBM PLTR ORCL QCOM
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Key Points

  • Major technology companies led gains, with Dell and Network Appliance among the largest percentage winners.
  • Several retailers and mid-cap issuers declined after revenue or guidance fell short of expectations.
  • Movements spanned mega-caps to small-caps, highlighting company-specific drivers rather than a single overarching market trend.

Markets saw a string of pronounced moves on Friday, driven by company-level announcements, analyst actions and earnings results. The session produced both outsized rallies and steep drops across mega-cap, large-cap, mid-cap and small-cap groups.


Overview

Stocks that climbed included major technology names; among the most notable were Dell and Network Appliance. Several other technology and enterprise-software companies also advanced, while retailers and various mid-cap issuers weighed on performance with double-digit declines. Below are the most significant movers organized by market-cap band.


Mega-Cap Movers ($200 billion USD or higher)

  • Dell Inc (DELL) - Susquehanna upgrades Dell stock rating on AI server growth: +31.33%
  • IBM (IBM): +9.18%
  • Palantir Technologies Inc (PLTR): +8.52%
  • Oracle Corp (ORCL): +5.9%
  • Qualcomm Inc (QCOM): +3.85%
  • Palo Alto Networks (PANW): +5.44%
  • Arm (ARM): +2.31%
  • Costco Wholesale Corp (COST): -3.8%
  • Avago Technologies (AVGO); Apollo Shops $36b Debt Deal To Buy Google Chips For Anthropic - Bloomberg: +3.0%
  • Micron Technology (MU): +4.95%

Large-Cap Stock Movers ($10-$200 billion USD)

  • Network Appliance Inc (NTAP); NetApp soars 11.5% on earnings beat and strong guidance: +34.38%
  • Okta Inc (OKTA): +24.52%
  • Hewlett Packard Enterprise Co (HPE): +15.55%
  • Super Micro Computer (SMCI): +14.26%
  • Nextracker (NXT); Nextpower to acquire Prevalon Energy for up to $365 million: +13.64%
  • ServiceNow Inc (NOW): +12.18%
  • Hewlett-Packard (HPQ): +11.68%
  • Atlassian Corp Plc (TEAM): +7.2%
  • New Providence Acquisition Corp (ASTS): -19.11%
  • Planet Labs PBC (PL): -11.52%

Mid-Cap Stock Movers ($2-$10 billion USD)

  • Ambarella Inc (AMBA); Ambarella falls 2% as revenue guidance midpoint trails estimates: -19.97%
  • Gap Inc (GAP); Gap shares tumble 13% as Q1 revenue fails to meet analyst expectations: -16.34%
  • American Eagle Outfitters (AEO); American Eagle Outfitters falls on mixed brand performance: -13.34%
  • Inflection Point Acquisition (LUNR): -13.32%
  • SentinelOne (S); SentinelOne stock upgraded to buy by BofA on growth outlook: -11.71%
  • Redwire (RDW): -13.67%
  • York Space Systems Inc (YSS): -10.24%
  • POET Technologies (POET): -12.75%
  • MUU (MUU): +9.66%
  • TimefireVR (RCAT): -10.11%

Small-Cap Stock Movers ($300 million - $2 billion USD)

  • Replimune Group Inc (REPL); Replimune reaches agreement with FDA on melanoma drug resubmission: +75.86%
  • TSS Inc (TSSI): +23.26%
  • PagerDuty Inc (PD); PagerDuty soars 15% as Q1 earnings, revenue top estimates: +22.58%
  • China Telecom Corp Ltd (CHA): +21.95%
  • PTIR (PTIR): +17.72%
  • PLTU (PLTU): +17.77%
  • Uniqure NV (QURE): +12.11%
  • Unusual Machines (UMAC): -10.82%
  • ASTX (ASTX): +4.3%

What to take away

Friday’s session was characterized by idiosyncratic, company-specific moves that drove large percentage changes. Technology and enterprise software companies account for many of the advances on the day, while retail and several mid-cap names moved lower following revenue or guidance shortfalls identified in the market commentary above. Special purpose acquisition companies and selected small caps also registered pronounced declines and gains.

Note - For those seeking continuous market updates, services that provide real-time alerts and deeper data were recommended in the original summary of market-moving news.

Risks

  • Revenue and guidance misses - multiple companies listed posted declines tied to revenue misses or guidance that trailed estimates, affecting retail and mid-cap issuers.
  • Regulatory and resubmission uncertainty - biotech firms with ongoing FDA interactions remain exposed to regulatory timing and outcomes.
  • Deal and financing developments - M&A and large debt financings referenced in market moves could affect companies and investor sentiment in related sectors.

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