Otter Tail Corp
Otter Tail Corporation (Nasdaq: OTTR) is a holding company whose businesses span electric utility operations, manufacturing and plastics. Its Electric segment, operated by Otter Tail Power Company, generates, purchases, transmits, distributes and sells electricity to about 134,000 residential, commercial and… From the company’s description.
Over the twelve months to Sep 30, 2026, Otter Tail Corp reported revenue of $1.31B, up 0.8% from a year earlier, and net income of $176.24M. Its operating margin was 15.1%, and operations generated $404.93M in cash. In fiscal 2025, it reported revenue of $1.30B, down 2.0% from fiscal 2024, and net income of $275.89M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Otter Tail Corp does
In the company’s own words
Otter Tail Corporation (Nasdaq: OTTR) is a holding company whose businesses span electric utility operations, manufacturing and plastics. Its Electric segment, operated by Otter Tail Power Company, generates, purchases, transmits, distributes and sells electricity to about 134,000 residential, commercial and industrial customers in more than 400 communities across western Minnesota, eastern North Dakota and northeastern South Dakota; the segment contributed 43% of 2025 operating revenues. The Manufacturing segment contributed 24% of 2025 operating revenues and includes BTD Manufacturing, which provides metal fabrication services and custom components to original equipment manufacturers, and T.O. Plastics, which makes thermoformed products, including horticulture containers and custom medical and industrial packaging. Its Plastics segment includes Northern Pipe Products and Vinyltech, which produce PVC pipe primarily for municipal water infrastructure and sell mainly in the western United States and Canada. Otter Tail Power, founded in 1907, is the company’s foundational business. The company employed 2,198 full-time employees at December 31, 2025. Its website is www.ottertail.com.
Company details
- Sector
- Utilities
- Industry (SIC)
- Electric, Gas & Water
- Headquarters
- FERGUS FALLS, MN
- Fiscal year end
- December
- CIK
- 1466593
- SIC
- 4911
Financial performance, year by year
Fiscal 2011–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Otter Tail Corp — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · Otter Tail Corp’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Could not be determined for this company: bond issues.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
Compare this company with peers, find it in your funds and follow its financial history with your connected AI:
- “How do Otter Tail Corp and its peers compare on margins and cash generation over ten years?”
- “Where did five years of Otter Tail Corp's earnings go — cash, debt, buybacks, reinvestment?”
- “What changed in Otter Tail Corp's last four quarterly filings that the numbers alone won't show?”