Otter Tail Corporation (OTTR) Stock Price & How to Invest

Otter Tail Corporation is a diversified company headquartered in Fergus Falls, Minnesota, operating through three segments. Its Electric segment is a regulated utility that generates, transmits, and distributes power to customers across Minnesota, North Dakota, and South Dakota using coal, natural gas, wind, and solar. Its Manufacturing segment provides contract metal fabrication and other industrial products, and its Plastics segment makes PVC pipe through subsidiaries such as Northern Pipe Products and Vinyltech. Trailing-twelve-month revenue is roughly $1.32 billion, with the regulated utility providing predictable, rate-base-driven earnings and the two non-regulated segments adding cyclical upside and downside.

The investment picture centers on a transition. During 2021 to 2023 the Plastics segment earned outsized profits as PVC pipe prices spiked, inflating total earnings well above the utility's normal contribution. As pipe prices reset lower, plastics earnings are stepping down (management expects them to normalize toward roughly $45 million to $50 million annually by 2028), while the regulated Electric segment grows its rate base and earnings. The market debate is whether utility and manufacturing growth can offset the plastics normalization, and how much of OTTR's earnings should be valued at a utility multiple versus a lower cyclical one.

The second quarter of 2026 added a legal chapter. Otter Tail recorded a $103.5 million pre-tax expense to settle the US PVC pipe antitrust class actions, without admitting wrongdoing and subject to court approval, which turned the quarter into a GAAP net loss of ~$7.6 million (-$0.18 per share). Excluding that charge, adjusted EPS was $1.66 against a ~$1.50 consensus, and plastics prices fell 14% while volumes rose 15% as customers bought ahead of announced resin cost increases. Management cut GAAP 2026 EPS guidance to $3.84 to $4.24 and introduced adjusted guidance of $5.68 to $6.08, above the original $5.22 to $5.62 range. The market looked through the charge: at ~$90.71 on October 16, 2026, OTTR is up ~11% year to date and ~18% over twelve months. Third-quarter results are due November 2, 2026.

The central risk is that plastics earnings fall faster or further than expected as PVC pipe prices continue resetting, pressuring consolidated EPS during the 2026 to 2028 transition; analysts expect adjusted EPS to slip from ~$6.07 in 2026 to ~$5.33 in 2027. The antitrust settlements still need court approval, and the charge shows that legal exposure in a concentrated commodity market is a real cost. Commodity and end-market cyclicality in both plastics and metal fabrication add volatility that pure regulated utilities do not carry. Heavy utility capital spending turned free cash flow negative over the trailing twelve months (about -$165 million), so funding needs rise if plastics cash falls. Regulatory outcomes on rate cases, including the pending Minnesota case, allowed returns on equity, and the pace of the energy transition can affect the Electric segment's growth. The stock can also be re-rated if investors decide to value a larger share of earnings at a lower cyclical multiple rather than a utility multiple. Weather, fuel costs, and interest rates are additional standard utility sensitivities.

We give no verdict on Otter Tail Corporation. Both cases are real, which is why the question is contested at all, so here is the strongest version of each.

The case for buying. Regulated utility rate-base growth. The Electric segment is the durable core, with earnings expected to grow around 14% in 2026 on a similar increase in average rate base, although second-quarter Electric net income was roughly flat at ~$18.7 million.

The case against. The central risk is that plastics earnings fall faster or further than expected as PVC pipe prices continue resetting, pressuring consolidated EPS during the 2026 to 2028 transition; analysts expect adjusted EPS to slip from ~$6.07 in 2026 to ~$5.33 in 2027.

Read the full bull and bear case on OTTR, including what would have to change to break either one. Walnut is not an investment adviser.

No. Otter Tail Corporation (OTTR) has not split its stock in the last 10 years. That is a statement about the window we check rather than about the company’s entire history, so an older split is possible. It also matters less than it once did: fractional shares mean a high price per share no longer keeps smaller investors out, which removed most of the practical reason to split.

A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Otter Tail Corporation's investor relations page or your broker.

• Revenue (TTM): ~$1.32B; Q2 2026 ~$334M (roughly flat YoY)
• Q2 2026 EPS: GAAP -$0.18 after a $103.5M settlement charge; adjusted $1.66 vs ~$1.50 expected
• 2026 EPS guidance: GAAP ~$3.84 to $4.24; adjusted ~$5.68 to $6.08 (original $5.22 to $5.62)
• Net income and margin (TTM): ~$195M; net margin ~15%, operating margin ~24%
• P/E: ~19.6x trailing GAAP, ~17x forward
• Market cap: ~$3.8B at ~$91 a share
• Dividend / yield: ~$2.31/yr (~2.5%)

OTTR's trailing P/E near 20x is inflated by the one-time settlement charge; on 2026 adjusted EPS guidance the stock trades closer to 15x, still below many pure regulated utilities because the market discounts cyclical plastics earnings that are normalizing lower. Q1 2026 EPS of ~$1.73 and Q2 adjusted EPS of $1.66 both beat consensus. The valuation debate hinges on how much of the earnings base is durable utility versus fading plastics upside, and the November 2 report (consensus EPS ~$1.54) is the next data point.

Other names that sit close to OTTR: same theme, named as a direct competitor, or held beside it in the same funds. Each entry says which. Worth a look if you are thinking about diversification within a thesis rather than concentration on one ticker.

There are three common ways to get OTTR exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic portfolio, so OTTR sits alongside other stocks that express the same thesis.

Walnut takes the portfolio route. Describe a thesis where OTTR fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.

New to this? Start with how to invest in stocks, see how to analyze a stock with AI, or compare the best AI stock analyzers.

OTTR blends regulated utility stability with a cyclical plastics business that is resetting off pandemic-era highs and has now paid to settle PVC pipe antitrust claims, so the story is about the utility growing into the earnings the plastics segment gives back.

Whether OTTR is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is OTTR a buy or a sell?, and where the stock could go from here in the OTTR stock forecast.

For income investors, whether OTTR pays a dividend and how the payout looks is covered in does OTTR pay a dividend? And to weigh OTTR against a peer, read the full side-by-side comparisons: OTTR vs MGEE and OTTR vs NWE.