Revenue growth of 6.6% in 2026Q1 is tempered by earnings volatility, with net margins fluctuating significantly to 12.8% due to seasonal load dependencies and regulatory timing.
| Metric | TTM | Dec'25 | Dec'24 | Dec'23 | Dec'22 | Dec'21 | Dec'20 | Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 | Dec'08 | Dec'07 | Dec'06 | Dec'05 | Dec'04 | Dec'03 | Dec'02 | Dec'01 | Dec'00 | Dec'99 | Dec'98 | Dec'97 | Dec'96 |
|---|
| Revenue | 1.64B | 1.61B | 1.51B | 1.42B | 1.48B | 1.37B | 1.2B | 1.26B | 1.19B | 1.31B | 1.26B | 1.21B | 1.2B | 1.15B | 1.07B | 1.12B | 1.11B | 1.14B | 1.26B | 1.2B | 1.13B | 1.17B | 205.95M | 1.03B | 1.99B | 4.24B | 7.13B | 3B | 1.19B | 918M | 344M |
| Revenue Growth % | 9.06% | 6.38% | 6.45% | -3.77% | 7.69% | 14.49% | -4.71% | 5.53% | -8.7% | 3.85% | 3.54% | 0.78% | 4.36% | 7.86% | -4.2% | 0.59% | -2.73% | -9.43% | 5.06% | 5.95% | -2.84% | 466.03% | -79.95% | -48.41% | -53.01% | -40.58% | 137.4% | 153.08% | 29.31% | 166.86% | 67.8% |
| Cost of Revenue | 625.33M | 284.92M | 227.84M | 640.79M | 713.44M | 425.55M | 306.19M | 527.07M | 272.88M | 410.35M | 400.97M | 372.86M | 482.59M | 479.55M | 395.43M | 494.56M | 531.09M | 573.69M | 698.74M | 668.4M | 1.23B | 1.28B | 1.07B | 1.1B | 1.1B | 3.38B | 6.3B | 2.47B | 681.4M | 681.9M | 165.9M |
| Gross Profit | 1.02B | 1.33B | 1.29B | 781.36M | 764.4M | 946.77M | 892.48M | 730.84M | 919.13M | 895.3M | 856.27M | 841.43M | 722.27M | 674.97M | 674.91M | 622.76M | 579.63M | 568.22M | 562.05M | 531.65M | -94.51M | -117.76M | -865.38M | -73.74M | 896.1M | 857.57M | 836.41M | 536.5M | 505.7M | 236.1M | 178.1M |
| Gross Margin % | 61.9% | 82.31% | 84.95% | 54.94% | 51.72% | 68.99% | 74.46% | 58.1% | 77.11% | 68.57% | 68.11% | 69.29% | 59.95% | 58.46% | 63.06% | 55.74% | 52.19% | 49.76% | 44.58% | 44.3% | -8.34% | -10.1% | -420.19% | -7.18% | 45% | 20.24% | 11.73% | 17.86% | 42.6% | 25.72% | 51.77% |
| Gross Profit Growth % | - | 3.08% | 64.59% | 2.22% | -19.26% | 6.08% | 22.12% | -20.49% | 2.66% | 4.56% | 1.76% | 16.5% | 7.01% | 0.01% | 8.37% | 7.44% | 2.01% | 1.1% | 5.72% | 662.53% | 19.74% | 86.39% | -1073.54% | -108.23% | 4.49% | 2.53% | 55.9% | 6.09% | 114.19% | 32.57% | 58.17% |
| Operating Expenses | 701.04M | 999.82M | 962.74M | 480.9M | 501.32M | 671.09M | 656.28M | 453.99M | 652.85M | 633.89M | 610.33M | 575.62M | 544.25M | 503.94M | 473.68M | 457.21M | 417.01M | 414.24M | 391.84M | 391.56M | 1.02B | 1.02B | 186.11M | 945.46M | 1.53B | 941.62M | 795.14M | 457M | 431.8M | 177.1M | 127.7M |
| Other Operating Expenses | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| EBITDA | 569.06M | 575.34M | 550.96M | 510.93M | 458.1M | 463.15M | 415.85M | 449.77M | 440.75M | 427.55M | 405.28M | 410.52M | 301.79M | 283.86M | 283.23M | 266.48M | 254.39M | 243.02M | 255.29M | 222.51M | 191.38M | 225.97M | 32.49M | 166.16M | -501.65M | 41.72M | 149.6M | 138M | 110.4M | 78.6M | 60.1M |
| EBITDA Margin % | 34.67% | 35.72% | 36.39% | 35.93% | 31% | 33.75% | 34.69% | 35.76% | 36.98% | 32.75% | 32.24% | 33.81% | 25.05% | 24.59% | 26.46% | 23.85% | 22.9% | 21.28% | 20.25% | 18.54% | 16.9% | 19.38% | 15.77% | 16.17% | -25.19% | 0.98% | 2.1% | 4.59% | 9.3% | 8.56% | 17.47% |
| EBITDA Growth % | -1.76% | 4.43% | 7.83% | 11.53% | -1.09% | 11.37% | -7.54% | 2.05% | 3.09% | 5.49% | -1.28% | 36.03% | 6.32% | 0.22% | 6.29% | 4.75% | 4.68% | -4.8% | 14.73% | 16.26% | -15.3% | 595.53% | -80.45% | 133.12% | -1302.56% | -72.12% | 8.41% | 25% | 40.46% | 30.78% | 20.44% |
| Depreciation & Amortization | 253.94M | 249.53M | 227.63M | 210.47M | 195.02M | 187.47M | 179.64M | 172.92M | 174.48M | 166.14M | 159.34M | 144.7M | 123.78M | 112.83M | 106.04M | 100.93M | 91.77M | 89.04M | 85.07M | 82.42M | 81.02M | 81.51M | 12.65M | 84.19M | 127.98M | 125.77M | 108.33M | 58.5M | 36.5M | 19.6M | 9.7M |
| D&A / Revenue % | 15.47% | 15.49% | 15.04% | 14.8% | 13.2% | 13.66% | 14.99% | 13.75% | 14.64% | 12.72% | 12.67% | 11.92% | 10.27% | 9.77% | 9.91% | 9.03% | 8.26% | 7.8% | 6.75% | 6.87% | 7.15% | 6.99% | 6.14% | 8.19% | 6.43% | 2.97% | 1.52% | 1.95% | 3.07% | 2.14% | 2.82% |
| Operating Income (EBIT) | 315.12M | 325.82M | 323.32M | 300.45M | 263.08M | 275.68M | 236.2M | 276.85M | 266.27M | 261.42M | 245.95M | 265.82M | 178.02M | 171.03M | 177.19M | 165.55M | 162.62M | 153.99M | 170.22M | 140.09M | 110.36M | 144.45M | 19.84M | 81.97M | -629.63M | -84.05M | 41.27M | 79.5M | 73.9M | 59M | 50.4M |
| Operating Margin % | 19.2% | 20.23% | 21.36% | 21.13% | 17.8% | 20.09% | 19.71% | 22.01% | 22.34% | 20.02% | 19.56% | 21.89% | 14.77% | 14.81% | 16.55% | 14.82% | 14.64% | 13.48% | 13.5% | 11.67% | 9.74% | 12.39% | 9.63% | 7.98% | -31.62% | -1.98% | 0.58% | 2.65% | 6.23% | 6.43% | 14.65% |
| Operating Income Growth % | - | 0.77% | 7.61% | 14.21% | -4.57% | 16.71% | -14.68% | 3.97% | 1.86% | 6.29% | -7.47% | 49.32% | 4.08% | -3.47% | 7.03% | 1.8% | 5.61% | -9.54% | 21.5% | 26.94% | -23.6% | 628.01% | -75.79% | 113.02% | -649.12% | -303.65% | -48.09% | 7.58% | 25.25% | 17.06% | 31.59% |
| Interest Expense | 4M | 150.35M | 131.67M | 114.62M | 100.11M | 93.67M | 96.81M | 95.07M | 91.99M | 92.26M | 94.97M | 92.15M | 77.8M | 70.49M | 65.06M | 66.86M | 65.83M | 67.76M | 63.95M | 56.94M | 56.02M | 61.3M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Interest Coverage | - | 2.25x | 2.63x | 2.76x | 2.82x | 3.03x | 2.49x | 2.83x | 2.94x | 2.91x | 2.65x | 2.97x | 2.42x | 2.54x | 2.79x | 2.53x | 2.57x | 2.31x | 2.69x | 2.50x | 2.13x | 2.63x | - | - | - | - | - | - | - | - | - |
| Interest / Revenue % | 0.24% | 9.34% | 8.7% | 8.06% | 6.77% | 6.83% | 8.08% | 7.56% | 7.72% | 7.07% | 7.55% | 7.59% | 6.46% | 6.11% | 6.08% | 5.98% | 5.93% | 5.93% | 5.07% | 4.74% | 4.95% | 5.26% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Non-Operating Income | -4M | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | 1000K | -1000K | 1000K | -1000K | -1000K | -1000K | -1000K |
| Pretax Income | 172.66M | 187.56M | 214.67M | 201.67M | 182.4M | 190.26M | 144.25M | 182.19M | 178.25M | 176.07M | 156.53M | 181.25M | 110.41M | 108.28M | 116.5M | 102.62M | 103.14M | 88.72M | 107.82M | 85.58M | 63.41M | 100.06M | -11.45M | -86.58M | -749.64M | -2.85M | 46.48M | 59.2M | 40.5M | 34.8M | 38.8M |
| Pretax Margin % | 10.52% | 11.65% | 14.18% | 14.18% | 12.34% | 13.86% | 12.03% | 14.48% | 14.95% | 13.49% | 12.45% | 14.93% | 9.16% | 9.38% | 10.88% | 9.18% | 9.29% | 7.77% | 8.55% | 7.13% | 5.6% | 8.58% | -5.56% | -8.43% | -37.64% | -0.07% | 0.65% | 1.97% | 3.41% | 3.79% | 11.28% |
| Income Tax | 5.08M | 6.47M | -9.44M | 7.54M | -605K | 3.42M | -10.97M | -19.93M | -18.71M | 13.37M | -7.65M | 30.04M | -10.27M | 14.3M | 18.09M | 10.06M | 25.76M | 15.3M | 40.22M | 32.39M | 25.93M | 38.51M | -4.93M | -48K | -798K | -47.38M | -4.12M | 14.5M | 13.2M | 11.1M | 15.4M |
| Effective Tax Rate % | 2.94% | 3.45% | -4.4% | 3.74% | -0.33% | 1.8% | -7.61% | -10.94% | -10.5% | 7.59% | -4.89% | 16.57% | -9.3% | 13.21% | 15.53% | 9.81% | 24.98% | 17.25% | 37.3% | 37.85% | 40.89% | 38.49% | 43.06% | 0.06% | 0.11% | 1663.62% | -8.86% | 24.49% | 32.59% | 31.9% | 39.69% |
| Net Income | 167.58M | 181.09M | 224.11M | 194.13M | 183.01M | 186.84M | 155.22M | 202.12M | 196.96M | 162.7M | 164.17M | 151.21M | 120.69M | 93.98M | 98.41M | 92.56M | 77.38M | 73.42M | 67.6M | 53.19M | 37.9M | 59.47M | -6.94M | -128.67M | -863.94M | 44.53M | 49.55M | 44.7M | 27.3M | 23.7M | 23.4M |
| Net Margin % | 10.21% | 11.24% | 14.8% | 13.65% | 12.38% | 13.61% | 12.95% | 16.07% | 16.52% | 12.46% | 13.06% | 12.45% | 10.02% | 8.14% | 9.19% | 8.28% | 6.97% | 6.43% | 5.36% | 4.43% | 3.35% | 5.1% | -3.37% | -12.52% | -43.38% | 1.05% | 0.69% | 1.49% | 2.3% | 2.58% | 6.8% |
| Net Income Growth % | -28.98% | -19.2% | 15.44% | 6.08% | -2.05% | 20.38% | -23.21% | 2.62% | 21.05% | -0.89% | 8.57% | 25.29% | 28.41% | -4.49% | 6.32% | 19.62% | 5.39% | 8.61% | 27.09% | 40.35% | -36.27% | 956.38% | 94.6% | 85.11% | -2040.05% | -10.13% | 10.86% | 63.74% | 15.19% | 1.28% | 28.57% |
| EPS (Diluted) | 2.72 | 2.94 | 3.65 | 3.22 | 3.25 | 3.60 | 3.06 | 3.98 | 3.92 | 3.34 | 3.39 | 3.17 | 3.01 | 2.46 | 2.66 | 2.53 | 2.14 | 2.02 | 1.77 | 1.44 | 1.02 | 1.65 | -0.19 | -3.44 | -29.06 | -0.17 | -0.15 | 1.81 | 1.44 | 1.31 | 1.28 |
| EPS Growth % | -29.17% | -19.45% | 13.35% | -0.92% | -9.72% | 17.65% | -23.12% | 1.53% | 17.37% | -1.47% | 6.94% | 5.32% | 22.36% | -7.52% | 5.14% | 18.22% | 5.94% | 14.12% | 22.92% | 41.18% | -38.18% | 968.42% | 94.48% | 88.16% | -16994.12% | -13.33% | -108.29% | 25.69% | 9.92% | 2.34% | 15.32% |
| EPS (Basic) | - | 2.95 | 3.66 | 3.22 | 3.28 | 3.61 | 3.07 | 4.01 | 3.94 | 3.35 | 3.40 | 3.20 | 3.01 | 2.46 | 2.67 | 2.55 | 2.41 | 2.03 | 1.78 | 1.45 | 1.07 | 1.67 | -0.19 | -3.44 | -29.06 | -0.16 | -0.15 | 1.93 | 1.45 | 1.31 | 1.28 |
| Diluted Shares Outstanding | 61.63M | 61.38M | 61.37M | 60.36M | 56.29M | 51.87M | 50.7M | 50.75M | 50.24M | 48.66M | 48.48M | 47.64M | 40.16M | 38.15M | 36.99M | 36.58M | 36.19M | 36.35M | 38.19M | 36.94M | 37.01M | 36.1M | 37.4M | 37.4M | 29.73M | 27.1M | 27.43M | 24.67M | 20.97M | 17.94M | 20M |
Elevated regulatory and capital intensity risk
According to the latest quarterly income statements, Northwestern Energy reported revenue of $497.6 million in 2026Q1, reflecting a 6.6% year-over-year growth rate, though the trajectory remains heavily dependent on seasonal heating loads and the timing of regulatory rate case outcomes across its Montana and South Dakota jurisdictions.
Revenue growth appears to be driven by a combination of rate base expansion and seasonal demand, yet the lack of consistent quarterly growth suggests that volumetric sensitivity remains a primary factor. Investors should monitor whether the current revenue trajectory is sufficient to offset rising infrastructure costs or if it remains tethered to the slow-moving regulatory approval process.
As reported in financial statements, the company maintains a high gross margin profile, which suggests that fuel and purchased power costs are largely managed through regulatory trackers, insulating the core operating profit from the volatility of commodity price spikes in the regional energy markets.
The reliance on automatic adjustment mechanisms appears to provide a buffer against short-term cost inflation, yet this structure may obscure underlying operational inefficiencies. The company's ability to recover these costs without significant regulatory lag is critical to maintaining its current operating margin levels.
Based on the provided income statement data, EPS experienced a significant 17.6% decline in 2026Q1 compared to the prior year, indicating that reported earnings may be subject to non-recurring items or seasonal weather normalization impacts that complicate the assessment of sustainable regulated earnings power.
The fluctuation in quarterly EPS suggests that investors should look past headline figures to identify the underlying growth in regulated assets. It appears that the current earnings profile is heavily influenced by the timing of rate case settlements and the conversion of construction work in progress into active rate base.
Data from recent filings indicates that capital expenditure remains the primary engine for growth, as the company continues to integrate new generation assets like the Yellowstone County Generating Station to support its expanding rate base and meet the energy demands of its growing service territory.
Incremental capital investment appears to be the primary lever for future earnings growth, provided that the Montana Public Service Commission continues to allow for timely recovery of these investments. The transition from construction to operational status for these assets warrants further investigation to confirm the expected return on invested capital.
Analysis of the reported figures suggests that the income statement may mask significant risks, including the potential for future decommissioning costs related to the Colstrip coal facility and the impact of regulatory lag on earnings during periods of high inflationary pressure on operating expenses.
The current financial presentation may not fully capture the long-term liabilities associated with aging generation assets or the potential for compressed ROE if the regulatory environment becomes more adversarial. Investors should remain cautious regarding the sustainability of current earnings if the company faces unexpected disallowances in future rate proceedings.
Quick answers to the most common questions about buying NWE stock.
For fiscal year 2025, Northwestern Energy Group Inc (NWE) reported total revenue of $1.61B. This represents a 368.2% increase compared to $344.0M in 1996.
Northwestern Energy Group Inc (NWE) is profitable, generating $181.1M in net income for the fiscal year ending 2025 with a net profit margin of 11.2%.
Northwestern Energy Group Inc (NWE) reported an operating income of $325.8M, resulting in an operating profit margin of 20.2%. This margin reflects the operational efficiency of the business before interest and taxes.
Northwestern Energy Group Inc (NWE) generated $1.33B in gross profit for the year, representing a gross profit margin of 82.3%. This demonstrates the company's core pricing power and production efficiency.