Otter Tail (OTTR) Stock Sinks As Q3 Results Expose Plastics Margin Strain

Otter Tail came into this Q3 2026 report with a premium tag and a reputation as a steady regulated utility wrapped around more volatile plastics and manufacturing businesses. The headline result was diluted EPS of US$1.41 for the quarter, and the stock promptly dropped about 9% to US$83.41 the next trading day. That sharp move centered on one thing: margin pressure in the Plastics segment squeezed profitability even as the core electric utility held its ground.

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Q3 2026 Earnings Summary

• Revenue (Q3 2026 vs. Q3 2025): US$320.5 million vs. US$325.6 million (slipped 1.6%)
• Net Income (Q3 2026 vs. Q3 2025): US$59.5 million vs. US$78.3 million (fell 24.0%)
• Basic EPS (Q3 2026 vs. Q3 2025): US$1.42 vs. US$1.87 (down 24.2%)
• Trailing Net Margin (TTM, Q3 2026 vs. Q3 2025): 13.5% vs. 21.5% (compressed by 8 percentage points)

Otter Tail kept its 10% utility rate base growth target. Ask Charlie what makes Otter Tail sure about 10% utility growth.

Otter Tail utility plan clearing early hurdles

The bullish pitch says Otter Tail can turn heavy electric spending and large-load interest into consistent earnings from the utility.

"Analysts expect Otter Tail to keep executing on its utility-first plan, with a 10% electric rate base CAGR and nearly 1:1 earnings conversion supported by a US$1.9b capex program and no planned equity issuance through at least 2030."

Q3 delivery mostly lines up with that script. Electric earnings were roughly flat for the quarter and up about 14% year to date, while management reaffirmed both the US$1.9b plan and the 10% rate base CAGR target and stated there is no equity raise in the current funding blueprint.

Plastics weakness keeps Otter Tail risk live

The bear story focuses on PVC and legal overhangs that may choke off the cash that is meant to fund the utility build safely.

"The PVC pipe antitrust settlements totaling US$103.5 million have already reduced cash that could otherwise support Otter Tail's utility capex plan. If any follow-on legal or related financing impacts emerge, they could further pressure cash flows and reduce flexibility around earnings and investment returns."

That concern now intersects with a tougher Plastics quarter. Segment EPS fell by US$0.34 year on year, pricing and volumes were weaker, and resin costs climbed about 10%. Management still expects Plastics earnings to decline through 2027, so Q3 reinforces that this funding source is under pressure even as the utility program continues.

The price and this Narrative do not agree. → Uncover what this Narrative says Otter Tail is actually worth.

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