Net interest income reached $99.9 million in 2026Q1, yet the net interest margin remains constrained at 1.0%, indicating that asset yields are struggling to outpace rising funding costs.
| Net Interest Income | 396.96M | 385.31M | 348.05M | 330.62M | 265.33M | 236.39M | 214.98M | 216.28M | 178.6M | 122.91M | 90.62M | 76.63M |
| NII Growth % | 52.7% | 10.71% | 5.27% | 24.61% | 12.24% | 9.96% | -0.6% | 21.1% | 45.31% | 35.64% | 18.25% | - |
| Net Interest Margin % | 4.01% | 3.99% | 3.66% | 3.72% | 3.6% | 3.53% | 3.36% | 3.92% | 3.61% | 3.65% | 2.75% | 3.09% |
| Interest Income | 578.99M | 572.18M | 565.93M | 479.48M | 301.56M | 248.93M | 239.23M | 264.81M | 206.95M | 136.8M | 98.36M | 83.26M |
| Interest Expense | 182.03M | 186.87M | 217.88M | 148.86M | 36.23M | 12.54M | 24.25M | 48.53M | 28.35M | 13.89M | 7.75M | 6.63M |
| Loan Loss Provision | 22.76M | 26.4M | 27.04M | 31.65M | 23.88M | 973K | 56.68M | 20.71M | 18.8M | 12.65M | 10.35M | 6.97M |
| Non-Interest Income | 55.04M | 57.31M | 55.49M | 52.99M | 54.9M | 67.22M | 54.29M | 46.87M | 43.23M | 45.64M | 22.18M | 13.07M |
| Non-Interest Income % | 8.68% | 9.1% | 8.93% | 9.95% | 15.4% | 21.26% | 18.5% | 15.04% | 17.28% | 25.02% | 18.4% | 13.57% |
| Total Revenue | 634.03M | 629.49M | 621.42M | 532.47M | 356.46M | 316.14M | 293.52M | 311.68M | 250.18M | 182.44M | 120.55M | 96.33M |
| Revenue Growth % | 11.05% | 1.3% | 16.71% | 49.38% | 12.75% | 7.71% | -5.83% | 24.58% | 37.13% | 51.35% | 25.14% | - |
| Non-Interest Expense | 234.08M | 233.26M | 215.42M | 206.28M | 181.67M | 178.42M | 160.92M | 165.15M | 147.6M | 115.1M | 96.96M | 97.4M |
| Efficiency Ratio | 36.92% | 37.06% | 34.67% | 38.74% | 50.96% | 56.44% | 54.82% | 52.99% | 59% | 63.09% | 80.44% | 101.11% |
| Operating Income | 195.16M | 182.96M | 161.08M | 145.68M | 114.68M | 124.21M | 51.67M | 77.3M | 55.44M | 40.79M | 5.48M | -14.67M |
| Operating Margin % | 30.78% | 29.06% | 25.92% | 27.36% | 32.17% | 39.29% | 17.6% | 24.8% | 22.16% | 22.36% | 4.55% | -15.23% |
| Operating Income Growth % | - | 13.58% | 10.57% | 27.03% | -7.67% | 140.41% | -33.16% | 39.42% | 35.9% | 643.87% | 137.39% | - |
| Pretax Income | 185.46M | 173.25M | 161.08M | 145.68M | 114.68M | 124.21M | 51.67M | 77.3M | 55.44M | 40.79M | 5.48M | -14.67M |
| Pretax Margin % | 29.25% | 27.52% | 25.92% | 27.36% | 32.17% | 39.29% | 17.6% | 24.8% | 22.16% | 22.36% | 4.55% | -15.23% |
| Income Tax | 46.07M | 43.2M | 40.32M | 37.8M | 26.73M | 31.43M | 14.2M | 20.29M | 14.25M | 19.1M | -61.24M | 307K |
| Effective Tax Rate % | 24.84% | 24.94% | 25.03% | 25.95% | 23.31% | 25.3% | 27.48% | 26.25% | 25.7% | 46.82% | -1116.79% | -2.09% |
| Net Income | 139.38M | 130.05M | 120.76M | 107.88M | 87.95M | 92.78M | 37.47M | 57M | 41.19M | 21.7M | 66.73M | -14.97M |
| Net Margin % | 21.98% | 20.66% | 19.43% | 20.26% | 24.67% | 29.35% | 12.76% | 18.29% | 16.47% | 11.89% | 55.36% | -15.54% |
| Net Income Growth % | 17.56% | 7.69% | 11.94% | 22.65% | -5.21% | 147.64% | -34.27% | 38.38% | 89.87% | -67.49% | 545.63% | - |
| Net Income (Continuing) | 139.38M | 130.05M | 120.76M | 107.88M | 87.95M | 92.78M | 37.47M | 57M | 41.19M | 21.7M | 66.73M | -14.97M |
| EPS (Diluted) | 3.07 | 2.89 | 2.75 | 2.67 | 2.34 | 2.40 | 0.96 | 1.48 | 1.18 | 0.38 | 2.66 | -0.61 |
| EPS Growth % | 14.07% | 5.09% | 3% | 14.1% | -2.5% | 150% | -35.14% | 25.42% | 210.53% | -85.71% | 536.07% | - |
| EPS (Basic) | - | 2.90 | 2.78 | 2.69 | 2.37 | 2.45 | 0.96 | 1.51 | 1.21 | 0.39 | 2.71 | -0.61 |
| Diluted Shares Outstanding | 45.42M | 45.42M | 43.85M | 40.45M | 37.48M | 38.37M | 38.31M | 37.99M | 34.19M | 27.55M | 25.11M | 25.11M |
SBA gain-on-sale volatility
As reported in financial statements, Byline's net interest income reached $99.9 million in 2026Q1, reflecting a 13.2% year-over-year expansion that suggests successful loan portfolio repricing despite the competitive funding environment currently observed within the Chicago metropolitan area's regional banking landscape.
The consistent growth in NII appears to be supported by the bank's ability to leverage its specialized commercial lending verticals. Investors should monitor whether this trajectory can be sustained if deposit betas continue to rise, potentially narrowing the spread between asset yields and funding costs.
Based on Byline's reported figures, the net interest margin has remained largely flat at 1.0% over the last ten quarters, indicating that the bank's asset yields are struggling to outpace the rising cost of interest-bearing liabilities in the current interest rate cycle.
This lack of margin expansion suggests that the bank's variable-rate loan portfolio is not providing the expected cushion against deposit cost pressures. The stability of this metric warrants further investigation into the bank's deposit mix and the potential for future compression if market rates remain elevated.
According to recent SEC filings, Byline maintained an efficiency ratio of 36.8% in 2026Q1, demonstrating a disciplined approach to managing non-interest expenses relative to total revenue despite the integration complexities associated with the recent Inland Bancorp acquisition and ongoing specialized lending operations.
The bank's ability to keep this ratio within a tight band suggests effective cost control measures are in place. However, the specialized nature of the SBA and Sponsor Finance units may necessitate higher personnel costs, which could limit further improvements in operating leverage.
As indicated by quarterly data, provision expenses fluctuated significantly, peaking at $11.9 million in 2025Q2 before declining to $5.5 million in 2026Q1, which may suggest management's proactive approach to adjusting reserves under the CECL framework in response to evolving economic conditions.
The variability in provision expense highlights the inherent risk in the bank's commercial-heavy loan book. Analysts should monitor whether these fluctuations represent actual credit deterioration in the Sponsor Finance portfolio or merely conservative accounting adjustments to align with current loss expectations.
Based on the provided income statement data, non-interest income contributed 7.6% to total revenue in 2026Q1, a figure that remains sensitive to the secondary market premiums for SBA loans and the overall appetite for government-guaranteed paper among institutional investors.
This reliance on transactional fee income introduces a layer of earnings volatility that is not present in traditional retail-focused banks. Investors should consider the potential for revenue contraction if interest rate volatility continues to dampen the secondary market for SBA loan sales.
Quick answers to the most common questions about buying BY stock.
Byline Bancorp, Inc. (BY) is profitable, generating $130.1M in net income for the fiscal year ending 2025 with a net profit margin of 20.7%.
Byline Bancorp, Inc. (BY) reported an operating income of $183.0M, resulting in an operating profit margin of 29.1%. This margin reflects the operational efficiency of the business before interest and taxes.
Byline Bancorp, Inc. (BY) generated $416.2M in gross profit for the year, representing a gross profit margin of 66.1%. This demonstrates the company's core pricing power and production efficiency.