Stocks making the biggest moves midday: Wendy's, H&R Block, Quantinuum, CoreWeave, Cava & more
Midday movers included Wendy’s (+13%) on reports Trian Fund Management may bid to take it private, and H&R Block (+15%) on a higher 2027 forecast. Quantinuum (+21%) and Velo3D (+12%) rose on improved guidance. Super Micro Computer (+14%) and CoreWeave (+18%) gained on strong results, while Aecom (-6%) fell on weaker revenue.
How this was made

The 30-second read
Why it matters
The newest actionable information in the text is the set of same-day guidance and earnings beats/misses, plus one FT-sourced going-private bid report for Wendy's. These are the drivers behind the large percentage moves and can prompt rapid estimate revisions.
Market read
Traders can use the guidance and earnings surprises to update near-term positioning across AI infrastructure, data center, optical/photonic, and select consumer names.
What to watch
For guidance-driven rallies, traders should watch for margin sustainability, backlog/order commentary, and whether raised ranges imply higher costs or one-off benefits not captured in the headline numbers.
Background
This is a CNBC midday movers wrap summarizing large intraday moves tied to guidance, earnings, and one reported potential bid.
Ticker impact
Wendy's shares jumped 13% after reports said Nelson Peltz' Trian Fund Management was preparing a bid to take the company private.
Near-term upside skew on deal speculation, with sharp reversals possible if talks cool.
The article cites FT-sourced sources about a bid preparation, which typically drives immediate momentum but remains unconfirmed.
Quantinuum rallied more than 21% after issuing better-than-expected 2026 revenue guidance of $28 million to $32 million.
Likely continued strength while traders digest the guidance gap versus the ~$26.5 million expectation.
The text provides explicit guidance ranges and a FactSet consensus comparison, indicating a clear surprise.
Super Micro Computer rallied 14% after issuing rosy first-quarter earnings and revenue guidance above consensus and beating fourth-quarter estimates.
Positive bias for the next few sessions as analysts update models around the new guidance.
The article provides explicit adjusted EPS and revenue guidance versus LSEG consensus, a direct driver of repricing.
CoreWeave shares gained 18% after reporting second-quarter adjusted operating margin of 5% and revenue of $2.58 billion.
Near-term upside momentum likely, especially if investors extrapolate margin improvement.
The text includes margin and revenue beats versus consensus, but lacks forward guidance details.
Lumentum Holdings rose 15% after posting fourth-quarter adjusted earnings and revenue that exceeded expectations.
Moderate upside bias as the market digests beat quality and any implied demand strength.
The article states beats but does not provide the actual figures or guidance changes.
Cava Group jumped 12% after second-quarter earnings of 19 cents per share beat the 18 cents consensus and revenue topped estimates.
Likely continued strength if traders view the beat as consistent with prior demand trends.
The article provides both EPS and revenue beats versus LSEG consensus, a direct catalyst.
H&R Block surged 15% after issuing an upbeat 2027 fiscal-year forecast with adjusted earnings of $6.04 to $6.24 per share.
Sustained upside possible as analysts update 2027 estimates around the new range.
The article includes explicit guidance ranges and compares them to LSEG consensus.
Nebius Group jumped more than 25% after reporting better-than-expected EBITDA, revenues, and stronger gross margins.
High likelihood of continued volatility upward while the market reassesses growth and margin durability.
The article indicates multiple beats but omits the specific numeric deltas versus consensus.
Market effects
Broad risk-on across AI infrastructure, data center, and select consumer names, with guidance beats supporting sentiment in high-growth pockets.
Primarily US-listed single-name repricing; limited direct cross-region linkage described.
AI and optical/photonic demand signals can influence global supply-chain sentiment, but the article is mostly company-specific.
Counterpoint
Some moves may be overextended because several catalysts are guidance revisions or peer read-throughs rather than confirmed long-term demand durability.
Key entities
- activist_fundNelson Peltz' Trian Fund Management
Reportedly preparing a bid to take Wendy's private, per Financial Times sources.
- companyQuantinuum
Issued better-than-expected 2026 revenue guidance, driving a >21% rally.
- companySuper Micro Computer
Issued first-quarter guidance above consensus and exceeded fourth-quarter estimates, lifting the stock ~14%.
- companyCoreWeave
Reported second-quarter margin and revenue beats, lifting shares ~18%.
- companyH&R Block
Raised 2027 fiscal-year forecast, lifting shares ~15%.



