Mayville Engineering EBITDA Miss by 43.1% Sparks 9.2% Share Plunge

MECMEC

Mayville Engineering reported Q4 revenue of $134.3 million, up 10.7% year-over-year, matching estimates, but its adjusted EBITDA of $6.31 million fell 43.1% short, dragging operating margin to -4.1% from 19% year-over-year. Its Q1 revenue forecast and full-year EBITDA guidance also missed analysts’ expectations, sending shares down over 9%.

1. Disappointing Q4 Earnings

Mayville Engineering delivered Q4 revenue of $134.3 million, up 10.7% year-over-year, matching expectations. However, adjusted EBITDA fell to $6.31 million, missing forecasts by 43.1%.

2. Sharp Margin Contraction

Operating margin swung to -4.1% from 19% in the prior-year period as profitability pressures intensified, marking a significant reversal in performance.

3. Weak 2026 Guidance

The company’s first-quarter revenue forecast and full-year EBITDA guidance both came in below analyst estimates, indicating continued margin challenges into 2026.

4. Market Reaction and Volatility

Shares plunged 9.2% during the session and closed down 7.7% at $19.48, reflecting investor concern over the earnings miss and cautious outlook.

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