Stocks making the biggest moves after hours: Super Micro Computer, CoreWeave, H&R Block and more
After-hours movers included Super Micro Computer, which rose over 8% after issuing first-quarter guidance above LSEG consensus, with adjusted EPS of $1.01-$1.10 and revenue of $14.5B-$15.5B. CoreWeave gained 14% on Q2 results and margin. H&R Block jumped 15% on a 2027 forecast. Cava rose nearly 7% on Q2 earnings and revenue.
How this was made
The 30-second read
Why it matters
The newest actionable information is the specific guidance and results ranges versus LSEG consensus for SMCI, CoreWeave, HRB, and CAVA, plus the beat but muted reaction for Lumentum.
Market read
After-hours moves are driven by upside surprises versus consensus, creating immediate repricing risk for these specific tickers.
What to watch
The article does not include full guidance commentary, backlog, or margin drivers beyond the cited figures, so traders should verify whether the beats reflect one-offs versus durable trends.
Background
This is a multi-stock after-hours wrap highlighting which companies moved most on earnings and guidance updates.
Ticker impact
Super Micro Computer rallied after issuing Q1 guidance with adjusted EPS $1.01 to $1.10 and revenue $14.5B to $15.5B, above consensus.
Near-term upside bias; elevated volatility likely as traders reprice the guidance gap versus consensus.
The article cites specific EPS and revenue guidance ranges that are materially above LSEG consensus, which is a direct driver of the after-hours move.
CoreWeave shares gained after reporting Q2 adjusted operating margin of 5% and revenue $2.58B, both ahead of consensus.
Likely continued positive tape action into the next session, with follow-through dependent on broader AI cloud sentiment.
The text provides concrete margin and revenue figures versus consensus, explaining the after-hours jump.
Lumentum Holdings was marginally lower after posting Q4 adjusted earnings and revenue that exceeded expectations, despite a prior 22% three-month drop.
Choppy/limited upside expected; downside risk persists if guidance or demand signals disappoint (not provided here).
The article confirms a beat but also notes the stock is only marginally lower, implying the incremental information may be insufficient to reverse the recent downtrend.
H&R Block surged after issuing an upbeat FY2027 forecast with adjusted EPS $6.04 to $6.24 and revenue $4.11B to $4.16B.
Sustained upside bias possible if investors treat the forecast as credible and conservative.
The article provides forecast ranges and compares them to LSEG consensus, indicating a clear upside surprise.
Cava Group jumped almost 7% after Q2 EPS of 19 cents and revenue $368.4M topped LSEG consensus.
Positive near-term momentum likely, though magnitude may fade if guidance is not discussed.
The text cites both EPS and revenue beats versus consensus, directly tied to the after-hours move.
Market effects
AI infrastructure and AI cloud names show after-hours strength on guidance and margin expansion, reinforcing near-term optimism in AI capex and cloud monetization narratives.
Primarily US single-stock repricing; limited direct cross-region spillover implied by the article.
AI infrastructure demand signals (SMCI) and AI cloud profitability (CoreWeave) can influence global AI supply-chain sentiment, though the article is company-specific.
Counterpoint
Beats may already be partially priced; without forward guidance details (especially for LITE), the market could fade the move quickly.
Key entities
- companySuper Micro Computer
Issued Q1 guidance with adjusted EPS $1.01 to $1.10 and revenue $14.5B to $15.5B, above consensus.
- companyCoreWeave
Reported Q2 adjusted operating margin of 5% and revenue $2.58B, ahead of consensus.
- companyLumentum Holdings
Posted Q4 adjusted earnings and revenue above expectations but shares were marginally lower.
- companyH&R Block
Provided upbeat FY2027 forecast with adjusted EPS $6.04 to $6.24 and revenue $4.11B to $4.16B.
- companyCava Group
Reported Q2 EPS of 19 cents and revenue $368.4M, topping consensus.
