Stock Markets August 5, 2026 02:06 PM

Market Movers Wednesday: Arista, Eli Lilly Advance as Several Names Slip After Results and Guidance

Mega-cap gains in networking and pharma contrast with declines across select large, mid and small caps following earnings and guidance updates

By Derek Hwang
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Trading on Wednesday delivered a mix of notable advances and sharp declines across market-cap tiers. Arista Networks and Eli Lilly were among the largest gainers in the mega-cap group, while Amazon and a number of large, mid- and small-cap companies fell. Several moves were tied to earnings beats, raised outlooks or soft revenue and guidance.

Market Movers Wednesday: Arista, Eli Lilly Advance as Several Names Slip After Results and Guidance
ANET LLY AMGN AMZN RRX
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Key Points

  • Mega-cap winners included Arista Networks and Eli Lilly, while Amazon declined.
  • Earnings beats and raised guidance boosted several stocks (for example, Amgen, Dynatrace, Materion, Bloomin' Brands).
  • Companies reporting weak revenue or soft guidance suffered steep sell-offs across large, mid and small caps (examples include Regal Rexnord, Teradata, Taboola).

Stocks exhibited varied movements on Wednesday as investors reacted to quarterly results, guidance revisions and other company-specific developments. Gains at the top of the market included networking and pharmaceutical names, while declines were concentrated among firms reporting weak revenue or cautious outlooks.


Mega-Cap Movers (Market Cap $200B+)

  • Arista Networks (ANET) +5.35%
  • Eli Lilly And Co (LLY) +4.07%
  • Amgen Inc (AMGN); Amgen beats Q2 estimates on strong drug sales, raises guidance +4.12%
  • Amazon Com Inc (AMZN) -2.22%

Large-Cap Stock Movers (Market Cap $10B-$200B)

  • Regal Beloit Corp (RRX); Regal Rexnord shares tumble on weak revenue, soft guidance -15.99%
  • Medline Inc (MDLN) -16.47%
  • Ritchie Bros. Auctioneers (RBA) -12.88%
  • Dynatrace Holdings LLC (DT); Dynatrace stock climbs 8% on earnings beat and strong guidance +12.8%

Mid-Cap Stock Movers (Market Cap $2B-$10B)

  • Materion Corp (MTRN); Materion shares leap 7% on strong earnings beat and raised outlook +29.23%
  • Select Energy Services (WTTR) +16.59%
  • Freshpet Inc (FRPT) +14.67%
  • LeMaitre Vascular Inc (LMAT) -23.93%
  • Teradata (TDC); Teradata tumbles on weak third quarter guidance -21.37%
  • Extreme Networks (EXTR); Extreme Networks stock falls 7% on mixed guidance despite Q4 beat -17.59%
  • Lucid Group Inc (LCID); Lucid falls 7% on weak Q2 revenue, wider-than-expected loss -15.94%

Small-Cap Stock Movers (Market Cap $300M-$2B)

  • Bloomin Brands Inc (BLMN); Bloomin' Brands stock surges 24% on earnings beat, raised guidance +36.94%
  • Mandalay Digital Group Inc (APPS) +29.76%
  • Ion Acquisition (TBLA); Taboola shares tumble 17% on earnings miss, weak guidance -27.39%
  • 1347 Capital Corp (LMB) -33.61%

Across market-cap segments, the session highlighted several recurring themes: companies reporting stronger-than-expected results and improved outlooks saw substantial share-price appreciation, while firms signaling weaker revenue or softer guidance recorded notable declines. The moves spanned multiple sectors, affecting technology, healthcare, industrials and consumer-oriented names.

This snapshot captures the largest percentage changes reported during the trading day and the specific corporate developments noted alongside certain names.

Risks

  • Stocks tied to firms that reported weak revenue or provided softer guidance experienced sharp declines - impacting industrials, enterprise software and small-cap consumer companies.
  • Volatility linked to earnings cycles could persist as markets digest quarterly results and forward guidance - affecting technology, healthcare and materials sectors.

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