Wisconsin Stock Market Recap, Nov. 13, 2026: Modine soars 40% on Samsung report as nine of the state's top 10 gain
State stocks strong - Will Modine be sold?
Modine Manufacturing jumped 40.4% this week to $135.66, the biggest gain among the 15 Wisconsin stocks we track, after Bloomberg News reported Thursday that Samsung Electronics is in talks to buy the Racine company. Reuters said it could not immediately verify the report, and no price or terms have been disclosed.
The report capped a busy week for Modine. On Wednesday the company said it had started commercial production of Airedale chillers for data center customers at a new 682,000-square-foot plant in Grand Prairie, Texas. "Scaling our capacity close to our customers enables us to partner with them to deliver the right highly engineered cooling solutions," President and CEO Neil D. Brinker said.
Nine of the state's 10 largest public companies finished higher. Generac gained 7.9% and Rockwell Automation, the largest, rose 7.1%. A. O. Smith was the only top-10 stock to slip, down 0.5%.
The national indexes bounced back from last week's losses. The Dow rose 2.07% to 52,347.55, the S&P 500 gained 2.51% to 7,561.67 and the Nasdaq Composite added 2.27% to 25,136.27.
THE WEEKLY SCORECARD
Prices are Friday, Nov. 13 closing prices. Weekly change is measured from the Friday, Nov. 6 close. Market cap is as of Friday's close.
Wisconsin's 10 largest public companies by market cap
- Rockwell Automation (ROK, NYSE): $402.46, up $26.60 (+7.08%), market cap $44.7 billion
- WEC Energy Group (WEC, NYSE): $117.60, up $1.73 (+1.49%), market cap $38.7 billion
- Fiserv (FISV, Nasdaq): $63.78, up $0.90 (+1.43%), market cap $33.9 billion
- Alliant Energy (LNT, Nasdaq): $73.43, up $0.76 (+1.05%), market cap $19.0 billion
- Snap-on (SNA, NYSE): $368.62, up $1.40 (+0.38%), market cap $19.0 billion
- Regal Rexnord (RRX, NYSE): $176.41, up $7.34 (+4.34%), market cap $11.7 billion
- Generac (GNRC, NYSE): $190.77, up $13.99 (+7.91%), market cap $11.3 billion
- Oshkosh Corp. (OSK, NYSE): $141.78, up $7.42 (+5.52%), market cap $8.6 billion
- A. O. Smith (AOS, NYSE): $64.24, down $0.31 (-0.48%), market cap $8.6 billion
- Zurn Elkay Water Solutions (ZWS, NYSE): $45.87, up $2.40 (+5.52%), market cap $7.6 billion
Other Wisconsin names we watch
Modine Manufacturing (MOD, NYSE): $135.66, up $39.05 (+40.42%), market cap $7.2 billion
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Associated Banc-Corp (ASB, NYSE): $30.94, up $0.58 (+1.91%), market cap $5.7 billion
MGIC Investment (MTG, NYSE): $27.77, down $0.83 (-2.90%), market cap $5.5 billion
Harley-Davidson (HOG, NYSE): $32.38, down $0.28 (-0.86%), market cap $3.3 billion
Kohl's (KSS, NYSE): $24.00, up $0.96 (+4.17%), market cap $2.7 billion
THE WEEK'S NEWS
Modine. Bloomberg reported that the two companies are discussing a deal that could come together within weeks, but that no final decision has been made and the talks could fall apart. Modine closed Thursday's regular session at $106.10 and gained 27.9% on Friday alone. Its market value of $7.2 billion left it just short of Zurn Elkay for the No. 10 spot on our list.
Modine also plans an Analyst and Investor Day in Chicago on Wednesday, Nov. 18, where Brinker and Chief Financial Officer Michael Lucareli will present an updated growth strategy and new financial targets following the spin-off of the company's Performance Technologies business.
Rockwell Automation. The Milwaukee company announced its LogixEdge controller Thursday, an industrial PC-based platform that combines Logix control with edge computing and containerized software. Rockwell shares rose 7.1% for the week after falling 13.8% the week before.
How we compiled this: Friday closing prices and market capitalizations are from CNBC quote data checked at 4:15 p.m. CT Friday, Nov. 13, and closing prices were cross-checked against StockAnalysis.com. Weekly changes are measured from the Nov. 6 official closes in Yahoo Finance and Nasdaq.com price history. The top 10 list counts companies with headquarters in Wisconsin; Johnson Controls, which moved its legal headquarters to Ireland, is not included. We also screened Modine, Plexus, Sensient, Badger Meter, Brady, Nicolet Bankshares, MGE Energy, ManpowerGroup, Spectrum Brands and Bank First, and none was larger than Zurn Elkay.
Sources
IBTimes on the Bloomberg and Reuters reports of Samsung-Modine talks: https://www.ibtimes.com/samsung-talks-acquire-modine-data-center-cooling-3809734
Modine release on Airedale chiller production in Texas: https://investors.modine.com/news/news-details/2026/Production-of-Airedale-Chillers-for-Data-Center-Customers-Begins-at-New-Texas-Facility/default.aspx
Modine release on Nov. 18 Analyst and Investor Day: https://investors.modine.com/news/news-details/2026/Modine-to-Host-Analyst-and-Investor-Day-on-November-18-2026-558f305df/default.aspx
Rockwell Automation LogixEdge release (PR Newswire via Morningstar): https://www.morningstar.com/news/pr-newswire/20261112cl96493/rockwell-automation-introduces-logixedge-controllers-for-software-defined-automation
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