$NFLX

Stocks making the biggest moves midday: Netflix, Super Micro Computer, Sandisk, StubHub & more

Midday movers included Netflix, up over 3% after Pershing Square disclosed a new stake. Super Micro Computer rose after earnings and Q1 guidance of adjusted EPS $1.01 to $1.10 and revenue $14.5B to $15.5B. Cisco fell 9% on gross margin guidance. Memory ETFs and peers, plus results-driven moves for Tapestry, Yeti, Birkenstock, Bullish, JD.com, EnerSys, and others.

Original reporting
Published Aug 13, 2026, 5:45 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 13, 2026, 6:06 PM UTC. Informational, not investment advice.
How this was made
alphai summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
Stocks making the biggest moves midday: Netflix, Super Micro Computer, Sandisk, StubHub & more — source image
Decision brief

The 30-second read

$NFLXBullishMed
01

Why it matters

Traders can use the specific beat or miss versus consensus and the guidance changes to update short-term positioning across growth, margin, and revenue-sensitive names.

02

Market read

The article provides concrete, consensus-relative earnings and guidance outcomes that explain same-day repricing across multiple sectors.

03

What to watch

For margin-sensitive names (CSCO, SE, COHR), the market may be trading on forward gross margin trajectory, not just the single-quarter print.

Relevance 6/10Novelty 6/10Timing: midday trading reaction to earnings and guidance prints

Background

This is a midday market wrap highlighting multiple company-specific catalysts, mostly earnings and guidance reactions, plus one activist stake disclosure.

Company-level read

Ticker impact

$NFLXBullishMedium confidence
Context

Netflix shares jumped more than 3% after Pershing Square disclosed a new stake in Netflix.

Expected impact

Likely supports continued upside bias intraday and over the next few sessions, subject to follow-through on activist intentions.

Evidence & confidence

The article cites a specific, newly disclosed Pershing Square stake and ties it directly to the stock’s midday jump.

$SMCIBullishHigh confidence
Context

Super Micro Computer shares continued a post-earnings surge after Q1 guidance beat estimates.

Expected impact

Higher probability of trend continuation versus mean reversion while traders digest the raised outlook.

Evidence & confidence

The text provides concrete guidance ranges and compares them to FactSet consensus, linking the beat to the stock’s surge.

$CSCOBearishMedium confidence
Context

Cisco shares fell 9% after its Q1 adjusted gross margin outlook narrowly missed consensus.

Expected impact

Downside pressure likely persists until investors gain clarity on margin drivers for the next quarters.

Evidence & confidence

The article specifies the margin range and the consensus miss, and notes the market reaction was sharp despite FY27 guidance.

$WDCBullishLow confidence
Context

Western Digital gained 8% alongside the memory-chip rally described in the midday tape.

Expected impact

May track sector direction; stock-specific follow-through is uncertain from this article alone.

Evidence & confidence

No WDC-specific earnings or guidance details are provided, only the concurrent move.

$MUBullishLow confidence
Context

Micron Technology advanced more than 6% as memory chips rallied and the DRAM ETF headed for a third straight winning day.

Expected impact

Short-term bias higher if the memory complex continues to bid; otherwise could fade with the tape.

Evidence & confidence

The catalyst described is sector-level (DRAM ETF and memory chips) without MU-specific new information.

$TPRBearishHigh confidence
Context

Tapestry dropped almost 15% after underwhelming fiscal fourth-quarter results.

Expected impact

Likely continued volatility and potential further downside if investors focus on the revenue miss.

Evidence & confidence

The article provides EPS and revenue figures versus FactSet consensus and ties them to the near-15% drop.

$YETIBearishMedium confidence
Context

Yeti slipped 12% after reaffirming full-year revenue growth guidance of 7% to 8%.

Expected impact

Near-term downside risk remains while the market reprices growth expectations.

Evidence & confidence

The text includes the reaffirmed range and the FactSet consensus comparison, directly linking to the move.

$BIRKBullishHigh confidence
Context

Birkenstock jumped 14% after quarterly revenue and adjusted EBITDA beat expectations and raised full-year guidance to the high end.

Expected impact

Higher probability of sustained upside as traders price in improved full-year trajectory.

Evidence & confidence

The article explicitly states both the beat and the guidance raise, which are actionable drivers.

Market effects

Memory-chip names rallied together, suggesting DRAM sentiment is driving cross-asset momentum in the complex.

JD.com weakness reflects investor sensitivity to China e-commerce growth despite headline beats.

Broad risk appetite appears mixed, with tech and consumer discretionary showing divergent reactions to guidance quality.

Counterpoint

Some large moves (e.g., memory-chip names) may be tape-driven rather than fundamentals, increasing mean-reversion risk after the initial momentum fades.

Key entities

  • Netflix

    Pershing Square disclosed a new stake; shares jumped more than 3%.

  • Super Micro Computer

    Q1 guidance surpassed estimates; shares continued a post-earnings surge.

  • Cisco Systems

    Q1 adjusted gross margin outlook narrowly missed consensus; shares fell 9%.

  • StubHub

    Q2 adjusted gross margin missed consensus; shares fell almost 14%.

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