Stock Markets May 27, 2026 10:33 AM

Broad Market Swings Put Tech, Cybersecurity and Small Caps in Focus

Qualcomm and Zscaler lead declines while Dycom and AppLovin rally amid mixed sector moves

By Avery Klein QCOM ARM INTC GEV PANW

Stocks across market-cap ranges moved sharply on Wednesday, with a number of large technology and semiconductor names pulling back while select software and industrial names advanced. Mega-caps such as Qualcomm and Arm fell in double-digit basis points, and large-cap Zscaler plunged sharply. At the same time, company-specific catalysts pushed some names higher, including Dycom's post-earnings surge and Applovin's gains.

Broad Market Swings Put Tech, Cybersecurity and Small Caps in Focus
QCOM ARM INTC GEV PANW

Key Points

  • Large-cap technology and semiconductor names posted notable declines, with Qualcomm down 9.32% and Intel down 4.28% among mega-caps.
  • Several company-specific developments drove big winners: Dycom surged roughly 30.9% after beating earnings and raising its outlook; Mandalay Digital (APPS) jumped 43.66% amid strong results and guidance tied to Digital Turbine.
  • Major large-cap declines included Zscaler dropping 30.57% and Pinduoduo falling 11.77%, while a number of mid- and small-cap names produced double-digit moves in both directions.

Trading on Wednesday produced a wide array of price swings across market-cap segments, from mega-cap blue chips to small-cap issues. A cluster of semiconductor and technology names posted declines, while other sectors and individual companies recorded strong gains tied to earnings and company-specific developments.

The moves are summarized below by market-cap cohort.


Mega-cap movers (market caps $200 billion or higher)

  • Qualcomm (QCOM): -9.32%
  • Arm (ARM): -5.49%
  • Intel (INTC): -4.28%
  • GE Vernova LLC (GEV): -3.32%
  • Palo Alto Networks (PANW): -2.95%
  • JP Morgan Chase (JPM): -1.98%
  • Texas Instruments (TXN): -3.10%
  • Procter & Gamble (PG): +3.73%
  • Micron Technology (MU): +0.19%
  • Home Depot (HD): +2.96%

Large-cap movers (market caps $10 billion to $200 billion)

  • Zscaler (ZS): -30.57%
  • Pinduoduo (PDD): -11.77%
  • Boston Scientific (BSX): -10.4%
  • Globalfoundries (GFS): -9.64%
  • Insulet Corp (PODD): -5.45% - Insulet recalls 7 million Omnipod insulin pods due to leakage
  • United Continental (UAL): +7.35%
  • Cerebras Systems (CBRS): +6.02%
  • Applovin (APP): +10.22%
  • Dycom Industries (DY): +30.9% - Dycom shares surge 25% on earnings beat and raised outlook
  • Iris Energy (IREN): +1.67%

Mid-cap movers (market caps $2 billion to $10 billion)

  • Cree Inc. (WOLF): -18.7%
  • Abercrombie & Fitch (ANF): +13.47%
  • Bath & Body Works / Limited Brands (BBWI): +14.66% - Bath & Body Works reports Q1 results, CFO to step down in June
  • Manchester United (MANU): +12.47%
  • Wingstop Inc. (WING): +9.69%
  • Beam Inc. (BEAM): +9.77%
  • Erasca (ERAS): +8.3%
  • Inflection Point Acquisition (LUNR): +8.61%
  • Redwire (RDW): +2.77%
  • Social Capital Hedosophia Hold II (OPEN): +9.26% - NavigateAI raises $25M to develop AI tools for field workers

Small-cap movers (market caps $300 million to $2 billion)

  • Gores Holdings II (VRRM): -70.91% - William Blair downgrades Verra Mobility stock rating on Avis customer loss
  • Mesa Laboratories (MLAB): -18.27%
  • CF Acquisition V (SATL): -14.62%
  • Mandalay Digital Group (APPS): +43.66% - Digital Turbine surges 17% on strong Q4 results, guidance
  • 360 Finance Inc (QFIN): +22.88%
  • Editas Medicine (EDIT): +18.99%
  • First Trust Heitman Global Prime RE (PRME): +15.15%
  • C4 Therapeutics (CCCC): +10.85%

Across the capitalization spectrum there were additional shorter-form moves and intraday readings referenced for a number of tickers. Those include variations in quoted intraday percent changes for names such as INTC, JPM, QCOM, BBWI, HD, MU, ANF, BSX, TXN, PG, UAL and others, reflecting active trading and intraday volatility for both individual issues and sectors.

The session featured a mix of company-specific headlines - recalls, earnings beats and strategic fundraising - alongside broader sector pressure centered on technology and semiconductors. Several stocks recorded outsized moves in both directions, underscoring the different catalysts affecting individual issuers and subsectors.

For readers tracking market movers, these lists capture the most pronounced percentage changes reported during Wednesday's session across mega-cap, large-cap, mid-cap and small-cap groupings.

Risks

  • Sharp intraday volatility is evident across market caps, particularly in technology and semiconductor stocks - this increases short-term price risk for investors in those sectors.
  • Operational and product risks are visible in the healthcare equipment segment, exemplified by Insulet's recall of 7 million Omnipod insulin pods due to leakage, which pressures the company's stock and the medical devices subsector.
  • Analyst actions and downgrades can trigger outsized moves in small-cap names, as demonstrated by William Blair's downgrade linked to Verra Mobility's customer loss, a factor that can amplify downside in smaller issues.

More from Stock Markets

Boeing Examining Faster 737 Output, Evaluating Supplier Capacity to Approach Airbus Levels Jun 4, 2026 MOEX slips as mining, oil & gas and power names weigh on market Jun 4, 2026 Walmart rolls Subway into its 30-minute express delivery program as e-commerce competition intensifies Jun 4, 2026 Merlin Shares Rally After C-130J Program Clears Critical Design Review Jun 4, 2026 S&P Lowers Wabash National Credit Rating, Cites Weak Cash Flow and Tightening Liquidity Jun 4, 2026