Stock Movers

Today's biggest winners and losers in the stock market.

On this episode of Stock Movers:

- Seagate (STX) shares slumped as much as 8.3% after management comments at a JPMorgan conference sparked investor fears that the company won’t be able to keep up with soaring demand for memory chips. Chief Executive Officer Dave Mosley said building new factories would “take too long” and potentially set up the company with more capacity than it needs when asked during a Monday presentation whether Seagate plans to expand manufacturing capacity.

- NextEra (NEE) agreed to pay about $67 billion in stock for Dominion Energy in the biggest power acquisition ever, creating a giant utility extending from Florida to the artificial intelligence data centers clustered in Virginia. The scope of the transaction underscores how the spike in AI-driven power demand is pushing the utilities sector to seek ever-greater size and clout. The deal would position NextEra as the dominant utility in a region that’s struggling to meet the surge in electricity consumption. Dominion shares rose while NextEra shares fell.

- Regeneron Pharmaceuticals (REGN) shares sank more than 10%, most intraday since May 2025, after the drugmaker’s phase 3 data for fianlimab in metastatic melanoma fell short of expectations. Citi and Leerink analysts downgraded their ratings on the stock following the disappointing trial update. Regeneron’s experimental drug fianlimab couldn’t beat Merck & Co.’s established cancer blockbuster Keytruda in the study, Regeneron said late on Friday. Another head-to-head trial of the Regeneron compound versus Bristol-Myers Squibb Co.’s Opdualag continues.
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On this episode of Stock Movers:
- Dominion Energy (D) shares climb. NextEra Energy Inc. agreed to pay about $67 billion in stock for Dominion Energy Inc. in the biggest power acquisition ever, creating a giant utility extending from Florida to the data centers clustered in Virginia.
- Regeneron (REGN US) shares sink. Regeneron Pharmaceuticals Inc. said a key late-stage melanoma study failed, adding to a series of challenges for the US biotech. Regeneron’s experimental drug fianlimab couldn’t beat Merck & Co.’s established cancer blockbuster Keytruda in the study, Regeneron said late on Friday. Another head-to-head trial of the Regeneron compound versus Bristol-Myers Squibb Co.’s Opdualag continues.
- Hive Digital Technologies (HIVE US) shares rise. The cryptocurrency mining firm’s cloud and data center subsidiary BUZZ HPC says it’s building a 320-megawatt AI data center in Toronto. The facility will deploy over 100,000 GPUs at full capacity, creating one of North America’s largest domestically controlled AI clusters, according to Executive Chairman Frank Holmes in a press release.
See omnystudio.com/listener for privacy information.

On this episode of Stock Movers:
- Dominion Energy (D) shares climb. NextEra Energy Inc. agreed to pay about $67 billion in stock for Dominion Energy Inc. in the biggest power acquisition ever, creating a giant utility extending from Florida to the data centers clustered in Virginia.
- UnitedHealth (UNH) shares fall. Berkshire Hathaway exited its stake in the health insurer. The conglomerate also disclosed that it amassed a $2.6 billion stake in Delta Airlines, boosting the carrier’s shares by 2.5%.
- Ford (F) shares rise. Ford Energy and EDF power solutions North America announced a five year agreement. The agreement is for up to 20 GWh of battery energy storage systems, the companies said in a statement.
See omnystudio.com/listener for privacy information.

Today's biggest winners and losers in the stock market.
On this episode of Stock Movers:
- NextEra Energy (NEE) agreed to pay about $67 billion in stock for Dominion Energy (D) in the biggest power acquisition ever, creating a giant utility extending from Florida to the data centers clustered in Virginia. The deal would give NextEra a swathe of electricity assets stretching across Virginia and the Carolinas and position it as a dominant utility in a region that’s struggling to meet the surge in demand from newly built artificial intelligence facilities.
- Ryanair (RYAAY) gains as it delivered a decent end to the year, but flagged impact ahead from rising costs. The airline said unit costs for 2027 could increase by a mid-single digit percentage, with concerns over current unhedged jet fuel prices, and also impact from higher crew and aircraft maintenance costs.
- Regeneron Pharmaceuticals (REGN) shares drop after the drugmaker’s phase 3 data for fianlimab in metastatic melanoma fell short of expectations. Citi downgraded its rating on the stock following the “disappointing” trial update.
See omnystudio.com/listener for privacy information.

Today's biggest winners and losers in the stock market.
On this episode of Stock Movers:
- NextEra Energy (NEE) is discussing a mostly stock deal for Dominion Energy (D) that would value the company at about $76 per share, or around $66 billion, making it by far the largest power deal on record, according to people familiar with the matter.
- Publicis Groupe (PUB FP) agreed to buy online data broker LiveRamp Holdings (RAMP) for about $2.5 billion in cash, a sign of the French media firm’s continued investment in marketing technology as the advertising industry contracts.
- Baidu (BIDU) posted a better-than-feared 1% drop in revenue after growth in nascent AI businesses offset a steady decline in traditional internet revenue, buying the search leader time to catch rivals such as Alibaba Group Holding Ltd. in the post-ChatGPT era.
See omnystudio.com/listener for privacy information.