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 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

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.

More from Stock Markets

Toronto market ends at fresh record as healthcare, financials and materials lead gains Jun 4, 2026 After-Hours Movers: Lululemon Dips on Guidance as Software and Data Names Show Mixed Reactions Jun 4, 2026 Lululemon Lowers Fiscal 2026 Revenue and EPS Guidance as U.S. Demand Softens Jun 4, 2026 Anthropic Places Engineers Inside NSA to Support Mythos AI for Offensive Cyber Tasks Jun 4, 2026 Trump Directs $700M Toward Coal Industry, Lifting Peabody Shares Jun 4, 2026