Bloomberg Stock Movers
2026-08-12 · Hosted by — · Bloomberg / iHeartMedia
Executive Summary
Tech stocks led the pre-market on the back of a wave of strong earnings from AI-adjacent names. Core Weave surged 18% after projecting roughly $3.5 billion in sales for the current quarter, well above estimates, with a $104 billion backlog and over $25 billion in new commitments signed since quarter-end — its first quarter set to trade up on earnings after five consecutive negative reactions. Super Micro Computer jumped 9% on a revenue outlook near $15 billion, more than a billion dollars above the highest analyst estimate.
Key Stories & Changes
1. Core Weave Surges on Strong Sales Guidance
Shares up 18% in the pre-market
Projecting approximately $3.5 billion in sales for the current quarter, ahead of estimates
Backlog stood at $104 billion at the end of fiscal Q2, with more than $25 billion in new commitments added since
Marks the company's first quarter set to trade up on an earnings reaction since going public — its five prior quarterly reports all saw double-digit declines
Company provides compute to large AI labs including Microsoft, Mistral, and OpenAI, reinforcing its role as a bellwether for data center demand
2. Super Micro Computer Jumps on Blowout Revenue Guide
Shares up 9%
Projecting roughly $15 billion in revenue for the current quarter, versus the highest analyst estimate of $13.3 billion
Benefiting from surging AI hardware demand as it sells Nvidia-chip-equipped servers
Stock had surged 250% in Q1 2024 before turning volatile; today's move marks a pre-market turnaround
3. Lumentum Rises on Margin Milestone
LITE: Lumentum — +8% — Beat Q4 estimates; non-GAAP gross margin topped 50% for the first time, sooner than expected
CRWV: Core Weave — +18% — $3.5B sales guide beat estimates; $104B backlog plus $25B+ in new commitments
SMCI: Super Micro — +9% — ~$15B revenue guide vs. $13.3B highest estimate
CAVA: Cava — +11% — Same-store sales up 9%, beat estimates
HRB: H&R Block — +13% — Stronger full-year forecast; beat Q4 expectations
Lumentum makes optical equipment used to move data quickly around AI data centers
Bloomberg Intelligence noted supply constraints likely prevented an even larger beat, suggesting demand continues to outstrip Lumentum's ability to fulfill it
4. Cava Jumps as Lower-Income Consumers Trade Up on Add-Ons
Shares up 11% pre-market on a 9% same-store sales beat
CEO noted sales slowed around a salmonella scare near the end of Q2, despite Cava's supply chain not being directly implicated
Lower-income guests are splurging on add-ons at a higher rate, per the CEO, supporting the beat
5. H&R Block Rises Despite Off-Season Timing
Shares up 13% pre-market, following a 65% rally off the year's low into yesterday's close
Stronger-than-expected full-year forecast and Q4 results beat
Stock had been pressured earlier in the year on concerns about AI disruption to the tax-prep business but has since turned around
Trends Identified
1. AI Infrastructure Earnings Broadly Beating Expectations
Core Weave, Super Micro, and Lumentum all delivered guidance well above street estimates, reinforcing that demand across the AI compute supply chain — from chips to servers to optical networking — remains robust heading into the back half of the year.
2. Consumer Resilience at the Value End
Cava's results show lower-income consumers continuing to spend on discretionary add-ons even amid broader affordability concerns, echoing a pattern of bifurcated consumer strength seen elsewhere in retail and restaurants this week. ---
Sentiment Analysis
Overall Market Sentiment: Bullish
Pre-market trading reflected broad enthusiasm for AI-infrastructure-linked earnings, with every name discussed trading higher.
Risk Factors Highlighted
Lumentum supply constraints: Bloomberg Intelligence notes the company could not fully meet demand, capping upside despite a strong quarter.
Cava's salmonella-linked slowdown: Sales softened near quarter-end tied to a health scare, even though the company's own supply chain wasn't implicated.
AI infrastructure spending concentration: Heavy reliance on continued hyperscaler capex to sustain results across Core Weave, Super Micro, and Lumentum.
This episode was covered in today's [The Market Signal — 2026-08-12](https://marketsignal.beehiiv.com/p/the-market-signal-2026-08-12), a cross-source synthesis of multiple podcast reports.