Stocks making the biggest moves after hours: Amazon, Intel, Twilio, Reddit, Roblox & more

Extended-trading moves were broadly negative as several companies missed results or issued weaker-than-expected outlooks: Amazon fell more than 6%, Intel about 17%, Pinterest 12%, Reddit 16%, Roblox 17%, Twilio 18% and Stryker 12%. Rivian gained 4% after beating third-quarter expectations and revising its 2026 guidance; Sandisk fell 2% despite an earnings and revenue beat, while Starbucks reported mixed results and fell 2%.

Analysis

The signal is less “earnings weakness” than a sharp market repricing of forward visibility: backward-looking beats offered little protection where next-quarter expectations were missed. The clustered outlook disappointments at Pinterest, Reddit, Roblox and Twilio raise a question about the durability and monetization of digital engagement, but do not yet prove a broad collapse in ad or software demand. Confirm with subsequent guidance revisions and customer-spend commentary before extrapolating across the group.

Amazon’s combination of a modest results miss and reiterated heavy capex puts the burden on measurable cloud/AI returns: near term, capex-sensitive suppliers may retain order visibility, while 6–18 months out, weak utilization or monetization would pressure returns on invested capital and the multiple. Intel’s guidance shock is a separate execution/estimate-reset risk; a large one-day decline can still be followed by estimate cuts, so do not treat the gap as a valuation floor. Stryker’s softer growth outlook merits checking whether the issue is company-specific or a broader procedure/demand signal for medtech peers. Rivian’s production ramp is constructive, but delivery growth alone does not establish unit economics or repeatable R2 execution. Sandisk’s split changes share count, not intrinsic value.

Contrarian angle: the simultaneous guidance misses may reflect elevated company-specific bars rather than one common demand shock. Immediate reactions are severe; chasing shorts after gaps risks snapbacks, especially absent fresh estimate cuts. Key falsifiers are guidance stabilization, improving realized growth/bookings, and—at Amazon—evidence that incremental capex is translating into durable returns.

Key Decisions for Investors

• Watchlist short: RDDT on a failed rebound or further estimate reductions; avoid initiating solely into the post-earnings gap. Exit the thesis if it reclaims the post-release gap area and subsequent guidance stabilizes. The risk is that the miss is timing or conservative guidance rather than weakening monetization.
• Keep PINS and RBLX underweight versus broader platform exposure until forward revenue/bookings expectations stabilize. Do not add to shorts after the initial selloff without evidence of estimate cuts; their sharp reactions create meaningful squeeze risk.
• AMZN: stay neutral pending evidence on cloud growth, capex deployment and returns. A lower capex trajectory with resilient growth would weaken the bearish read; continued spending without improving monetization would strengthen it. Monitor data-center and AI infrastructure suppliers for order changes rather than assuming the spend is immediately accretive.
• INTC: avoid catching the initial drop; require estimate revisions and execution evidence before considering a long. For RIVN, treat the delivery ramp as a watch item and verify R2 delivery cadence and unit economics before buying the guidance optimism. No standalone trade from SNDK’s split or SBUX’s mixed quarter.