Otter Tail Corp. (OTTR) intrinsic value & 10-year financials

Otter Tail Corp. (OTTR) has a Graham intrinsic value of $217.56 per share. At $90.13 on Oct 17, 2026, the stock trades 59% below that value. Over the last 10 fiscal years revenue grew 5.5% a year to $1.3B, with an average return on invested capital of 11.0%.

Graham intrinsic value
$217.56
Share price (Oct 17, 2026)
$90.13
Price vs Graham value
59% below
Market cap
$3.8B
Revenue (FY2025)
$1.3B
Revenue growth (10-yr CAGR)
5.5%
ROIC (10-yr avg)
11.0%
Free cash flow (FY2025)
$97.9M

OTTR 10-year financial history

Fiscal year Revenue Net income EPS (diluted) Free cash flow Operating margin ROIC
FY2025 $1.3B $275.9M $6.55 $97.9M 26.5% 12.1%
FY2024 $1.3B $301.7M $7.17 $94.1M 28.6% 14.2%
FY2023 $1.3B $294.2M $7.00 $117.4M 28.0% 15.4%
FY2022 $1.5B $284.2M $6.78 $218.2M 26.7% 16.8%
FY2021 $1.2B $176.8M $4.23 $59.4M 20.9% 12.1%
FY2020 $883.2M $95.9M $2.34 -$159.6M 16.7% 7.8%
FY2019 $918.5M $86.8M $2.17 -$22.3M 14.7% 8.1%
FY2018 $916.4M $82.3M $2.06 $38.0M 14.1% 8.8%
FY2017 $849.4M $72.4M $1.82 $40.7M 14.9% 7.7%
FY2016 $803.5M $62.3M $1.61 $2.1M 13.8% 7.0%

Source: annual 10-K filings on SEC EDGAR. Figures in USD.

Executive summary

Otter Tail Corp has demonstrated mature, steady growth, with revenue compounding at 5.5% annually over the past decade.

Otter Tail Corp returns on capital have been average, hovering around 11.0% ROIC over the decade.

Otter Tail Corp has not shown aggressive share repurchases (>10% retirement) or a major balance-sheet leverage increase (>50% net debt growth) over the 10-year window.

Benjamin Graham lens

Under Benjamin Graham's formula using SEC EDGAR fundamentals, Otter Tail Corp is modeled at 15.0% normalized earnings growth with a 5.1% bond-yield adjustment. The resulting Graham intrinsic value estimate is $217.56 per share.

OTTR stock: frequently asked questions

What is the intrinsic value of Otter Tail Corp. (OTTR) stock?

Using Benjamin Graham's revised formula, V = EPS × (8.5 + 2g) × 4.4 / Y, with reported diluted earnings per share, a 15.0% normalized growth rate (capped at 15%) and a 5.1% AAA corporate bond yield, OTTR's intrinsic value is about $217.56 per share.

Is OTTR stock undervalued?

At $90.13 (close on Oct 17, 2026), OTTR trades 59% below its Graham value of $217.56. On Graham's terms that leaves a margin of safety. A formula is a starting point for research, not a recommendation.

How fast has Otter Tail Corp. grown?

Revenue went from $803.5M in fiscal 2016 to $1.3B in fiscal 2025, a compound annual growth rate of 5.5%. Net income was $275.9M in fiscal 2025.

Does Otter Tail Corp. generate free cash flow?

Otter Tail Corp. generated $97.9M of free cash flow (operating cash flow minus capital expenditures) in fiscal 2025. Free cash flow was positive in 8 of the last 10 reported years.

What is OTTR's return on invested capital?

Average ROIC over the last 10 fiscal years was 11.0%, and average return on equity was 15.6%. Sustained ROIC above about 15% usually points to a durable competitive advantage.

Where does this OTTR data come from?

From Otter Tail Corp.'s annual 10-K filings on SEC EDGAR, most recently filed Aug 5, 2026. Prices are end-of-day snapshots; valuations are formula outputs, not investment advice.

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