Turtle Mountain State 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.
The largest change between Q1 2026 and Q2 2026 was in Net interest margin, which rose 0.25 percentage points to 4.41%. Turtle Mountain State Bank ranks 7th of 60 North Dakota banks on net interest margin, in the upper half at 4.41% (Q2 2026). The median for banks in the $100M-1B asset tier is 3.95% on net interest margin. Turtle Mountain State Bank sits 0.46 points higher, at 4.41% (Q2 2026).
Asset yields
| Line item | Q2 2026 |
|---|---|
| Yield on earning assets | 5.13% |
| Yield on loans | — |
| Yield on securities | — |
Funding costs
| Line item | Q2 2026 |
|---|---|
| Cost of funds | 0.79% |
| Cost of interest-bearing deposits | 1.87% |
| Cost of interest-bearing liabilities | 1.87% |
| Cost of borrowings | 0.00% |
Spread and margin
| Line item | Q2 2026 |
|---|---|
| Net interest margin | 4.41% |
| Yield to cost spread | 3.26% |
Interest income and expense
| Line item | Q2 2026 |
|---|---|
| Interest income on loans | $673K |
| Total interest expense | $195K |
| Interest expense on deposits | $195K |
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 | 5.39% | 0.70% | 4.71% |
| Q4 2023 | 6.18% | 0.67% | 5.55% |
| Q1 2024 | 5.63% | 0.64% | 5.02% |
| Q2 2024 | 6.15% | 0.69% | 5.50% |
| Q3 2024 | 5.72% | 0.65% | 5.09% |
| Q4 2024 | 5.70% | 0.57% | 5.16% |
| Q1 2025 | 5.11% | 0.63% | 4.53% |
| Q2 2025 | 5.59% | 0.65% | 4.99% |
| Q3 2025 | 5.31% | 0.73% | 4.64% |
| Q4 2025 | 5.32% | 0.81% | 4.60% |
| Q1 2026 | 4.87% | 0.78% | 4.16% |
| Q2 2026 | 5.13% | 0.79% | 4.41% |
Turtle Mountain State 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 Turtle Mountain State 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 Turtle Mountain State Bank profile, peer group comparison, or how this data updates.
Regulator records: FDIC BankFind (cert 58586) · FFIEC NIC profile (RSSD 3626184)