Mueller Industries (MLI) Operating Margin (2009 - 2026)
Mueller Industries (MLI) recorded Operating Margin of 19.85% in Q3 2026, down 5.77 percentage points from 25.62% a year earlier and down 1.86 percentage points from the prior quarter.
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Analysis
Mueller Industries (MLI) Operating Margin (2009 - 2026) Analysis & Trends
On a TTM basis, Mueller Industries' Operating Margin came in at 21.51% as of Sep 26, 2026, down 1.61 percentage points year-over-year; for FY2025, it was 22.94%, up 2.50 percentage points from FY2024.
- Annual Operating Margin has a five-year change of +12.69 percentage points (FY2020 to FY2025).
- Across earlier years, Operating Margin came in at 20.44% in FY2024 (-1.66 pp), 22.10% in FY2023 (+0.08 pp), 22.03% in FY2022 (+4.63 pp) and 17.40% in FY2021 (+7.15 pp).
- Quarterly Operating Margin has ranged from 17.87% in Q4 2025 to 26.72% in Q2 2025 over the past five years.
- On a year-over-year basis, Operating Margin rose in three of the last eight quarters, with an average year-over-year change of +0.47 percentage points.
- Peak year-over-year performance for Operating Margin in the last five years was a gain of 9.75 percentage points in Q1 2022, against a drop of 5.77 percentage points in Q3 2026 at the low end.
- Per Business Quant, the preceding three quarters came in at 21.71% (Q2 2026), 26.17% (Q1 2026) and 17.87% (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Operating Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | Caterpillar | 268.42 Bn | 239.73 Bn | 7.35 Bn | 20.38% |
| 2 | Amphenol | 200.18 Bn | 194.88 Bn | 4.02 Bn | 29.53% |
| 3 | Deere | 182.33 Bn | 150.42 Bn | 4.66 Bn | 14.72% |
| 4 | Eaton | 139.45 Bn | 136.39 Bn | 3.11 Bn | 17.76% |
| 5 | Parker-Hannifin | 120.96 Bn | 118.84 Bn | 2.26 Bn | 19.96% |
| 6 | 3M | 97.01 Bn | 78.45 Bn | 2.78 Bn | 23.66% |
| 7 | Emerson Electric | 93.92 Bn | 86.65 Bn | 2.66 Bn | 26.92% |
| 8 | Illinois Tool Works | 80.83 Bn | 77.51 Bn | 1.91 Bn | 27.79% |
| 9 | Vertiv Holdings | 75.75 Bn | 64.60 Bn | 1.64 Bn | 22.81% |
| 10 | Mueller Industries | 11.98 Bn | 6.29 Bn | 361.44 Mn | 19.85% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 26, 2026 | 19.85% |
| Jun 27, 2026 | 21.71% |
| Mar 28, 2026 | 26.17% |
| Dec 27, 2025 | 17.87% |
| Sep 27, 2025 | 25.62% |
| Jun 28, 2025 | 26.72% |
| Mar 29, 2025 | 20.62% |
| Dec 28, 2024 | 18.44% |
| Sep 28, 2024 | 20.71% |
| Jun 29, 2024 | 21.05% |
| Mar 30, 2024 | 21.59% |
| Dec 30, 2023 | 18.47% |
| Sep 30, 2023 | 22.08% |
| Jul 1, 2023 | 23.49% |
| Apr 1, 2023 | 23.59% |
| Dec 31, 2022 | 21.70% |
| Sep 24, 2022 | 21.71% |
| Jun 25, 2022 | 23.38% |
| Mar 26, 2022 | 21.06% |
| Dec 25, 2021 | 18.00% |
API Access
Mueller Industries Operating Margin API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=operating-margin&ticker=MLI&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "operating-margin", "ticker": "MLI", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=operating-margin&ticker=MLI&period=max&api_key=YOUR_API_KEY");
const data = await res.json();