# CORNERSTONE STATE BANK
MONTGOMERY, MN · FDIC certificate 21525 · asset band <$300M · latest filing 2026-06 · live

**Verdict on the desk:** this could be *run candidate*. Composite score 1 (one point per flag, capital below 5% counted twice; 7 or more is where departures cluster).

## What the filing shows (filed dollars, derived ratios; band percentiles in parentheses)

| Measure | Value | Band median |
|---|---|---|
| Total assets | $247.0M | |
| Deposits | $223.9M | |
| Loans and leases | $152.4M | |
| Total equity | $19.9M | |
| Loans / deposits | 67.12% (p40 of band) | 73.59% |
| Liquid assets / assets | 35.23% (p56 of band) | |
| Uninsured deposits / deposits | 11.30% (p18 of band) | 19.81% |
| Brokered deposits | 0.00% | |
| Wholesale funding | 0.81% (p52 of band) | |
| FHLB advances / assets | 0.81% | |
| Tier 1 leverage | 10.60% (p34 of band) | 11.76% |
| Unrealized securities loss / equity | -32.94% (p12 of band) | -6.57% |
| AOCI / equity | -1.76% (p15 of band) | |
| ROA (annualized) | 1.49% (p67 of band) | 1.17% |
| Net interest margin | 3.70% (p38 of band) | 3.93% |
| Efficiency ratio | 61.04% (p38 of band) | |
| Noncurrent loans | 0.80% (p66 of band) | 0.36% |
| Net charge-offs (annualized) | -0.53% (p0 of band) | |
| Reserve coverage of noncurrent | 174.43% | |
| Real estate % of loans | 85% | |
| Construction % of loans | 46.60% (p77 of band) | |
| Auto loans | $5.5M (3.58% of loans; DQ 0.64%, NCO 0.01%) | |
| Loans to nondepository financials | $0 (0% of equity) (p48 of band) | |
| Deposits YoY | 4.7% | |
| Employees | 40 | |

## Flags firing in the latest filing

- **securities losses >30% of equity** (`cap_secloss`)

## Warning timeline

| Quarter | Score | Flags that first fired | Flags that cleared |
|---|---|---|---|
| 2011-03 | 0 |  |  |
| 2011-06 | 1 | reserve under noncurrent |  |
| 2011-09 | 1 |  |  |
| 2011-12 | 1 |  |  |
| 2012-03 | 2 | uninsured deposits leaving |  |
| 2012-06 | 2 |  |  |
| 2012-09 | 1 |  | uninsured deposits leaving |
| 2012-12 | 1 | uninsured deposits leaving | reserve under noncurrent |
| 2013-03 | 0 |  | uninsured deposits leaving |
| 2013-06 | 0 |  |  |
| 2013-09 | 0 |  |  |
| 2013-12 | 1 | reserve under noncurrent |  |
| 2014-03 | 1 |  |  |
| 2014-06 | 1 |  |  |
| 2014-09 | 1 |  |  |
| 2014-12 | 1 | uninsured deposits leaving | reserve under noncurrent |
| 2015-03 | 1 | reserve under noncurrent | uninsured deposits leaving |
| 2015-06 | 1 | capital falling | reserve under noncurrent |
| 2015-09 | 1 |  |  |
| 2015-12 | 0 |  | capital falling |
| 2016-03 | 0 |  |  |
| 2016-06 | 0 |  |  |
| 2016-09 | 0 |  |  |
| 2016-12 | 1 | reserve under noncurrent |  |
| 2017-03 | 1 | charge-offs p90 | reserve under noncurrent |
| 2017-06 | 2 | uninsured deposits leaving |  |
| 2017-09 | 1 |  | uninsured deposits leaving |
| 2017-12 | 2 | reserve under noncurrent |  |
| 2018-03 | 0 |  | charge-offs p90, reserve under noncurrent |
| 2018-06 | 1 | reserve under noncurrent |  |
| 2018-09 | 1 |  |  |
| 2018-12 | 1 |  |  |
| 2019-03 | 1 |  |  |
| 2019-06 | 0 |  | reserve under noncurrent |
| 2019-09 | 0 |  |  |
| 2019-12 | 2 | charge-offs p90, reserve under noncurrent |  |
| 2020-03 | 2 | uninsured deposits leaving | charge-offs p90 |
| 2020-06 | 0 |  | reserve under noncurrent, uninsured deposits leaving |
| 2020-09 | 1 | capital falling |  |
| 2020-12 | 1 |  |  |
| 2021-03 | 1 |  |  |
| 2021-06 | 1 |  |  |
| 2021-09 | 1 |  |  |
| 2021-12 | 0 |  | capital falling |
| 2022-03 | 2 | AOCI drag >20% of equity, securities losses >30% of equity |  |
| 2022-06 | 2 |  |  |
| 2022-09 | 2 |  |  |
| 2022-12 | 2 |  |  |
| 2023-03 | 1 |  | AOCI drag >20% of equity |
| 2023-06 | 1 |  |  |
| 2023-09 | 2 | AOCI drag >20% of equity |  |
| 2023-12 | 2 | uninsured deposits leaving | AOCI drag >20% of equity |
| 2024-03 | 2 | NIM <2.5% | uninsured deposits leaving |
| 2024-06 | 3 | uninsured deposits leaving |  |
| 2024-09 | 2 |  | uninsured deposits leaving |
| 2024-12 | 1 |  | NIM <2.5% |
| 2025-03 | 1 |  |  |
| 2025-06 | 2 | charge-offs p90 |  |
| 2025-09 | 2 |  |  |
| 2025-12 | 2 |  |  |
| 2026-03 | 1 |  | charge-offs p90 |
| 2026-06 | 1 |  |  |

## In the news (Google News, unfiltered, newest first; check the city)

- 2019-08-25 [Community Developments Investments (November 2018) - occ.gov](https://news.google.com/rss/articles/CBMi4wFBVV95cUxOTER0REFUMXBmQXduMnpHVlY4ME9EdGxrVXFwbmtaNWdZeVpsSFl4b3N6TEJWVXhhZjhRaHplcENaZWdpcFBxLS1ZVHBUdTdnWDdGUlNBMmJITzZCalcwUFRLZWRzbWYxdExYVS00SGc4Um1pV0l1MjU2cGY1cklLc1JORjBqN0VmU24yS2ZfcWJaSXZsV0EzR25TTGE0b0VNVTBmYjBQMlJSVmExSmpkN2EwdG9oQlJqYnh2TFBwZ0l1ajdvaU1icEVlcm9LZHBBRng2eldqS1p6MEJRdWYwc2dqOA?oc=5) · occ.gov
- 2018-09-27 [Bruce Olness celebrates 40 years as CornerStone owner - southernminn.com](https://news.google.com/rss/articles/CBMi7wFBVV95cUxNOVVqNUN0djAtMzhMUVI1SWstLTZ2Wk9WN0RKaV9fVGhod195Um1rZWM3WGFLWjY4UU4yajRnRzB1Zk1OZ0p2Qzd3Wk91cWUtajlXeGRTek9pWnJPdXJfMjdCZzVSQURSR1dYYV96SGVpVkNZRWdnODlha1Z5VlFXeFNVU0RXN3Y0azl5a2V6Sk1tTlRwN3ZjUFNBMUJ0emJaSFNWNWVwMjFlWVZmcWEwNldqVXBSZHFOTFJvN0Npak1jeGlrelUyazJmR2Nibmw3LVg5UkZaSWpHS2wySmp2bTlwZXlBTk4xdGxiZ1dsYw?oc=5) · southernminn.com
- 2026-04-16 [Allen Eugene Herd - Ingstad Media](https://news.google.com/rss/articles/CBMiVkFVX3lxTE8ySEJlaW5tZFAxNzBDdW81R0dpQ044NnRodDBHajFNdk9IOG9QREI0cldTVVBXM0l4aWN1VUJGNExsWlg4alhkOVZ2S1FxYThPa25XME1R?oc=5) · Ingstad Media
- 2024-10-20 [Allen "Gene" Herd Obituary Oct 20, 2024 - Kolden Funeral Services](https://news.google.com/rss/articles/CBMiZkFVX3lxTE5rVUVYVDJyN2JQZWt6c1VPUVIzcnZFMVNqS3lpeUVtZzJmQTFDcDY4YjVCTkstN25fc2laQzFzbWcyYWRBSDJuV3NHOUh2SmhYU2RjX1kzTTJfNXNscUFwTUFsYXJOZw?oc=5) · Kolden Funeral Services
- 2013-12-31 [Cloquet man sentenced to 23 months for local bank burglary - Pine Journal | Cloquet, Minnesota](https://news.google.com/rss/articles/CBMilgFBVV95cUxOTFBFVWpnZ3RxOHJCRlVPbnRQd0hzSUhFY2k1ZUVUbU5ua2xqVEJUVDVZMGplUUdpUXkyRzNEY3pZcDdaanhwdC1yWHZHUE1kWWdKMmlmODRJZl9sandXaUJLNjR6WFgxcUh1T0g0QTgxTTlJeG5CNml0SEJKWkJLLW13Ynl4enFHclVRZUxRVWZiUkg1OHc?oc=5) · Pine Journal | Cloquet, Minnesota
- 2016-08-14 [Public Notices for 8/15/16 - faribaultcountyregister.com](https://news.google.com/rss/articles/CBMimAFBVV95cUxQLTRFYW9Oc0V1V3RmT2hCaVM3VDFxZjQ1b25Qbk9BZ21oSDdnVlFweFNqbWdOOExwR2dkV21ocV9telJINy1tbjNLQ3hjcXRYREV5Q050QWhkaUpwY1Vsek5IZnV1QjBHR1E4RjhlY25jLUM3VUxoekVMRmM1emJFUm4xVDY2SXFSM1pwd2VpOXFQSTRNRUo5QQ?oc=5) · faribaultcountyregister.com
- 2024-07-28 [Sonya R. Hanson Obituary (2024) - Cloquet, MN - Nelson Funeral Care - Cloquet - legacy.com](https://news.google.com/rss/articles/CBMigAFBVV95cUxPYXRBdVlOX0lEdGZBNklISUpTTlVYMThuWHExMUJ1aWt6c2FOT1RmakE1UW5oV1plUGJka21NbFkzYl9kcmVnZGR5NkQ2N2lZemhWVW9uaEk2bkZ2YjlnbExveWN2b1lPcW1WNnZYcWJ2d0Y5cHRTZnNLT2JCYUpUVQ?oc=5) · legacy.com
- 2014-09-26 [Cloquet man sentenced for second burglary - Pine Journal | Cloquet, Minnesota](https://news.google.com/rss/articles/CBMif0FVX3lxTFB3cUxZaDdnX1gwQm1lcnZKVWdxbmJ5RjdDTGh4dGhTZjVzeFFvbXNQdGt6OUMtMlRLenMybFo5X2p1eVctQkNuUWg4LUVFdXRYR0lxWTBZTGt3TnU5NmFJTFJ2eGNXcExtZE40X2xVbnhtM1V3aWdXVG5EUTNsaFk?oc=5) · Pine Journal | Cloquet, Minnesota

## How to verify

- Page: https://getbookiq.com/bank-desk/#bank=21525 (click any number for its formula and FFIEC field codes)
- Latest row, JSON: https://getbookiq.com/bank-desk/data/summary.json · history: https://getbookiq.com/bank-desk/data/h/21.json (key "21525", columns cycle, ASSET, DEP, LNLSGR, EQTOT, ltd, liquid_pct, unins_pct, lev, aoci_pct_eq, sec_loss_eq, roa, nim, eff, nc_pct, nco_pct, LNAUTO, auto_dq, auto_nco, LNNDEPD, ndfi_eq, wholesale_pct, dep_yoy, score, flags)
- Field definitions: https://getbookiq.com/dictionary/#bank-LNNDEPD and the rest of the bank dictionary
- Source: FDIC call report via BankFind, dollars in thousands as filed. Departed means stopped filing, which is usually a merger; FAILED is the FDIC's own list.

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Rendered 2026-09-10 from the desks' own data files. Full guide: https://getbookiq.com/guide