First 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.
Total interest expense rose 3.2% from Q1 2026 to Q2 2026, ending at $3.2M against $3.1M. It was the largest change among the key lines on this page. Within Iowa, First Bank is 84th of 225 on net interest margin, 3.80% as of Q2 2026, above the middle of the field. First Bank reported 3.80% on net interest margin for Q2 2026, 0.15 points below the 3.95% median for banks in the $100M-1B asset tier.
Asset yields
| Line item | Q2 2026 |
|---|---|
| Yield on earning assets | 5.57% |
| Yield on loans | 6.26% |
| Yield on securities | 2.92% |
Funding costs
| Line item | Q2 2026 |
|---|---|
| Cost of funds | 1.98% |
| Cost of interest-bearing deposits | 2.31% |
| Cost of interest-bearing liabilities | 2.41% |
| Cost of borrowings | 4.13% |
Spread and margin
| Line item | Q2 2026 |
|---|---|
| Net interest margin | 3.80% |
| Yield to cost spread | 3.16% |
Interest income and expense
| Line item | Q2 2026 |
|---|---|
| Interest income on loans | $8.8M |
| Total interest expense | $3.2M |
| Interest expense on deposits | $2.9M |
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 | Loans | Securities |
|---|---|---|---|---|---|
| Q3 2023 | 4.31% | 1.68% | 2.55% | 5.50% | 1.67% |
| Q4 2023 | 4.45% | 2.04% | 2.59% | 5.64% | 1.71% |
| Q1 2024 | 4.59% | 2.10% | 2.68% | 5.76% | 1.82% |
| Q2 2024 | 4.83% | 2.25% | 2.80% | 5.97% | 1.86% |
| Q3 2024 | 5.00% | 2.33% | 2.90% | 6.11% | 2.03% |
| Q4 2024 | 5.04% | 2.19% | 3.08% | 6.09% | 2.12% |
| Q1 2025 | 5.10% | 2.07% | 3.24% | 6.02% | 2.40% |
| Q2 2025 | 5.23% | 2.08% | 3.35% | 6.05% | 2.66% |
| Q3 2025 | 5.41% | 2.07% | 3.57% | 6.26% | 2.70% |
| Q4 2025 | 5.45% | 2.02% | 3.66% | 6.26% | 2.75% |
| Q1 2026 | 5.46% | 1.95% | 3.72% | 6.20% | 2.78% |
| Q2 2026 | 5.57% | 1.98% | 3.80% | 6.26% | 2.92% |
First 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 First 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 First Bank profile, peer group comparison, or how this data updates.
Regulator records: FDIC BankFind (cert 4519) · FFIEC NIC profile (RSSD 376442)