Marathon Bank: Yields and Funding Costs
Data as of · Call Report Schedules RI and RC-K How we update
What the bank earns on its assets, what it pays for its funding, and the spread between them. Net interest margin is the output of the two: it is the engine of earnings for almost every commercial bank.
In Q2 2026, Net interest margin edged up by 0.07 percentage points, from 3.49% to 3.56%, the largest move among the key lines here. Marathon Bank ranks 105th of 153 Wisconsin banks on net interest margin, in the lower half at 3.56% (Q2 2026). Marathon Bank reported 3.56% on net interest margin for Q2 2026, 0.39 points below the 3.95% median for banks in the $100M-1B asset tier.
Asset yields
| Line item | Q2 2026 |
|---|---|
| Yield on earning assets | 5.27% |
| Yield on loans | — |
| Yield on securities | — |
Funding costs
| Line item | Q2 2026 |
|---|---|
| Cost of funds | 1.90% |
| Cost of interest-bearing deposits | 1.86% |
| Cost of interest-bearing liabilities | 2.18% |
| Cost of borrowings | 4.01% |
Spread and margin
| Line item | Q2 2026 |
|---|---|
| Net interest margin | 3.56% |
| Yield to cost spread | 3.09% |
Interest income and expense
| Line item | Q2 2026 |
|---|---|
| Interest income on loans | $2.9M |
| Total interest expense | $1.0M |
| Interest expense on deposits | $745K |
Yields and Funding Costs trend
Last 12 quarters as filed. Every value plotted here also appears in the tables above.
Yields and Funding Costs by quarter
| Quarter | Yield on earning assets | Cost of funds | Net interest margin |
|---|---|---|---|
| Q3 2023 | 4.32% | 1.67% | 2.80% |
| Q4 2023 | 4.40% | 1.86% | 2.71% |
| Q1 2024 | 4.37% | 1.90% | 2.63% |
| Q2 2024 | 4.44% | 1.92% | 2.66% |
| Q3 2024 | 4.56% | 1.91% | 2.79% |
| Q4 2024 | 4.53% | 1.91% | 2.79% |
| Q1 2025 | 4.57% | 1.89% | 2.85% |
| Q2 2025 | 4.78% | 1.89% | 3.13% |
| Q3 2025 | 5.07% | 1.88% | 3.37% |
| Q4 2025 | 5.18% | 1.83% | 3.54% |
| Q1 2026 | 5.14% | 1.84% | 3.49% |
| Q2 2026 | 5.27% | 1.90% | 3.56% |
Marathon Bank yields and funding costs, all the way back
Yields and Funding Costs back to 2001 · peer percentiles on every line item · Excel export
Unlock Marathon Bank, freeSource: Call Report Schedules RI and RC-K, as filed with the FFIEC and standardized by BankRegReports. Dollar amounts are as reported, point-in-time; income statement items are year-to-date through the report date. See the full Marathon Bank profile, peer group comparison, or how this data updates.
Regulator records: FDIC BankFind (cert 29745) · FFIEC NIC profile (RSSD 596978)