INB

National bank with its head office in Springfield, Illinois, established in 1905 according to the FDIC.

INB reported total assets of $2.7 bn at Q2 2026, up 9.6% from a year earlier. That ranks 471st among 497 banks reporting this metric (1 = highest). Its common equity tier 1 ratio was 12.19%, and an estimated 18.23% of domestic deposits were uninsured. Source: FDIC Call Report data, cross-checked against FFIEC filings.

What changed this quarter (Q1 2026 to Q2 2026)
  • Total deposits: up 6.1% on Q1 2026, to $2.4 bn
  • Uninsured share of domestic deposits: down 1.13 pp on Q1 2026, to 18.23%
  • Total assets: up 5.6% on Q1 2026, to $2.7 bn
Total assets
$2.7 bn
+9.6% on a year earlier
Rank 471 of 497 1 = highest
CET1 capital ratio
12.19%
+0.71 pp on a year earlier
Rank 317 of 448 1 = highest
Return on equity
12.75%
+0.34 pp on a year earlier
Rank 223 of 500 1 = highest
Uninsured share of deposits
18.23%
-0.42 pp on a year earlier
Rank 427 of 500 1 = highest

Ranks compare banks in our US coverage that report each metric. Sparklines: the last ten years. Source: FDIC BankFind Suite (Call Report data), cross-checked against FFIEC Call Report filings. Calculations: EconoMonitor.

Overview

What stands out about INB?

Against its six size peers, its uninsured share of domestic deposits stands out most: 18.23% at Q2 2026, below the peer median of 39.13%. By noncurrent loans to total loans it moved from 281st to 381st among 500 banks between Q1 2026 and Q2 2026 (1 = lowest).

How large is INB?

At Q2 2026 the bank held $2.7 bn of assets. Deposits were $2.4 bn and net loans and leases $1.9 bn, a loan-to-deposit ratio of 80.07%. Securities of $102.5 mn made up 3.8% of assets.

Total assets rose 225.3% between Q1 2016 and Q2 2026, from $825.1 mn.

How much of its funding is uninsured?

An estimated 18.23% of domestic deposits were above the FDIC insurance limit at Q2 2026, -1.13 pp from the previous quarter and -0.42 pp from a year earlier. That share ranks 427th among 500 banks reporting this metric (1 = highest).

Key facts, Q2 2026

MetricValueChange from a year earlierUS rank
Total assets$2.7 bn+9.6%471st of 497
Total deposits$2.4 bn+10.0%436th of 499
Net loans and leases$1.9 bn-1.7%450th of 500
Bank equity capital$243.3 mn+6.2%479th of 498
Common equity tier 1 (CET1) ratio12.19%+0.71 pp317th of 448
Tier 1 leverage ratio9.44%-0.23 pp375th of 500
Return on equity (ROE)12.75%+0.34 pp223rd of 500
Net interest margin3.21%+0.18 pp370th of 500
Uninsured share of domestic deposits18.23%-0.42 pp427th of 500
Noncurrent loans to total loans1.10%+0.26 pp381st of 500 (1 = lowest)
Net charge-offs to average loans0.10%+0.12 pp262nd of 500 (1 = lowest)

US rank: rank among the banks in our coverage reporting each metric, 1 = highest unless marked 1 = lowest.

Balance sheet

Total assets, deposits and net loans, quarterly, Q1 2016 to Q2 2026.

Total assets, deposits and net loans of INB each quarter; total assets were $2.7 bn at Q2 2026$426mn$1.0bn$1.6bn$2.2bn$2.8bn20182020202220242026Total assets$2.7bnDeposits$2.4bnNet loans$1.9bnTotal assets, deposits and net loans of INB each quarter; total assets were $2.7 bn at Q2 2026$426mn$1.2bn$2.0bn$2.8bn20202024
  • Total assets $2.7bn
  • Deposits $2.4bn
  • Net loans $1.9bn
USD bn. Source: FDIC BankFind Suite, Call Report data.

Capital and securities

The common equity tier 1 (CET1) ratio was 12.19% at Q2 2026, +0.71 pp from a year earlier. Since Q1 2016 it has ranged from 10.28% (Q1 2016) to 12.94% (Q3 2021). At Q2 2026 the tier 1 leverage ratio was 9.44% and the total risk-based capital ratio 13.28%. The median CET1 ratio of the size peers listed below was 13.81% at Q2 2026.

Available-for-sale securities showed an unrealized loss of $4.8 mn at Q2 2026; the loss narrowed by $1.0 mn from a year earlier.

Capital ratios

Percent of risk-weighted assets, except tier 1 leverage (percent of total assets)
CET1, total risk-based capital and tier 1 leverage ratios of INB, quarterly, Q1 2016 to Q2 20267.1%8.9%11%13%14%20182020202220242026Total capital13%CET112%Tier 1 leverage9.4%CET1, total risk-based capital and tier 1 leverage ratios of INB, quarterly, Q1 2016 to Q2 20267.1%9.5%12%14%20202024
  • Total capital 13%
  • CET1 12%
  • Tier 1 leverage 9.4%
Quarterly, Q1 2016 to Q2 2026. Source: FDIC BankFind Suite, Call Report data.

Unrealized gains and losses on securities

Fair value minus amortized cost, USD bn
Unrealized gains and losses on available-for-sale and held-to-maturity securities of INB, quarterly, Q1 2016 to Q2 2026-$17mn-$12mn-$6mn-$1mn$4mn20182020202220242026Held to maturity$0Available for sale-$5mnUnrealized gains and losses on available-for-sale and held-to-maturity securities of INB, quarterly, Q1 2016 to Q2 2026-$17mn-$10mn-$3mn$4mn20202024
  • Available for sale -$5mn
  • Held to maturity $0
Quarterly, Q1 2016 to Q2 2026. Source: FDIC BankFind Suite, Call Report data.

Profitability and loan quality

Return on equity was 12.75% for the year to Q2 2026, annualized, with a return on assets of 1.20% and a net interest margin of 3.21%. The margin was +0.18 pp from a year earlier. The efficiency ratio, noninterest expense as a share of revenue as the FDIC defines it, was 63.82%. Net income for the year to Q2 2026 was $15.5 mn, up 11.6% on the same period a year earlier. The median return on equity of its size peers was 12.02% for the same period.

Noncurrent loans, those 90 days or more past due or no longer accruing interest, were 1.10% of total loans at Q2 2026. Net charge-offs for the year to date were 0.10% of average loans, annualized.

Profitability

Percent, year to date, annualized as reported
Return on equity, net interest margin and return on assets of INB, quarterly, Q1 2016 to Q2 2026-0.9%3.3%7.5%12%16%20182020202220242026Return on equity13%Net interest margin3.2%Return on assets1.2%Return on equity, net interest margin and return on assets of INB, quarterly, Q1 2016 to Q2 2026-0.9%4.7%10%16%20202024
  • Return on equity 13%
  • Net interest margin 3.2%
  • Return on assets 1.2%
Quarterly, Q1 2016 to Q2 2026. Source: FDIC BankFind Suite, Call Report data.

Compared with banks of similar size

The six banks ranked closest to INB by total assets at Q2 2026, three above and three below where possible.

Among the seven banks in the table at Q2 2026, INB is 4th by total assets. Its CET1 ratio of 12.19% compares with a peer median of 13.81%, its tier 1 leverage ratio of 9.44% compares with a peer median of 11.35%, and its return on equity of 12.75% compares with a peer median of 12.02%.

BankTotal assetsCET1 ratioReturn on equityUninsured share
Planters Bank & Trust Company$2.7 bn15.29%11.63%38.75%
CalPrivate Bank$2.7 bn13.61%18.54%56.48%
Beverly Bank & Trust Company$2.7 bn11.43%15.97%27.51%
INB$2.7 bn12.19%12.75%18.23%
Interaudi Bank$2.7 bn18.12%12.32%57.15%
Machias Savings Bank$2.7 bn14.01%8.83%16.38%
Avidbank$2.7 bn11.83%11.72%39.51%

Q2 2026. Peer median (the six banks, excluding this one): CET1 13.81%, return on equity 12.02%. Source: FDIC BankFind Suite (Call Report data), cross-checked against FFIEC Call Report filings. Calculations: EconoMonitor.

Last eight quarters

INB, as reported in its Call Reports.

From Q3 2024 to Q2 2026, total assets rose 15.4% to $2.7 bn, deposits rose 15.4% to $2.4 bn and bank equity capital rose 15.4% to $243.3 mn. Over the same period its full-time equivalent staff went from 302 to 334 and its offices went from 13 to 14.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
Total assets$2.3 bn$2.4 bn$2.4 bn$2.4 bn$2.5 bn$2.5 bn$2.5 bn$2.7 bn
Total deposits$2.1 bn$2.2 bn$2.2 bn$2.2 bn$2.2 bn$2.3 bn$2.3 bn$2.4 bn
Bank equity capital$210.8 mn$216.8 mn$224.7 mn$229.1 mn$235.0 mn$241.7 mn$243.1 mn$243.3 mn
Common equity tier 1 (CET1) ratio10.94%11.15%11.36%11.48%11.90%12.11%12.21%12.19%
Return on equity (ROE)7.90%9.27%12.23%12.41%13.16%12.58%12.30%12.75%
Uninsured share of domestic deposits17.79%18.35%17.57%18.64%17.56%18.61%19.36%18.23%
Full-time equivalent employees302295302317310306318334
Number of offices1313131414141414

Source: FDIC BankFind Suite (Call Report data), cross-checked against FFIEC Call Report filings. Calculations: EconoMonitor.

Mergers and acquisitions

The FDIC history records no mergers or acquisitions for INB since Q1 2016, and its total assets never moved more than 25% in one quarter.

Identifiers and sources

FDIC certificate
3664
Federal Reserve RSSD ID
925037
Head office
Springfield, Illinois
Holding company
ILLINOIS NATIONAL BCORP INC (as reported to the FDIC)
Holding company RSSD ID
1208054
EconoMonitor ID
EMB-US-000687

Frequently asked questions

What were INB's total assets?

$2.7 bn at Q2 2026, according to its Call Report as published by the FDIC. By total assets it ranks 471st among 497 banks reporting this metric (1 = highest).

Is INB the same as its holding company?

No. This page covers the FDIC-insured bank (certificate 3664). Its holding company, ILLINOIS NATIONAL BCORP INC (as reported to the FDIC), reports separately to the Federal Reserve and, if its shares are listed, to the SEC.

How often is this page updated?

Every quarter, after INB files its Call Report and the FDIC publishes it. This page shows Q2 2026, loaded on 19 October 2026; any sentence that uses an earlier quarter names it.

Where can I check these numbers?

In the FDIC BankFind Suite record for certificate 3664, and in the Call Reports filed under RSSD ID 925037 at the FFIEC Central Data Repository.

Sources and definitions

Definitions, Call Report fields and formulas for each metric: Bank equity capital, Uses community bank leverage ratio framework, Common equity tier 1 (CET1) ratio, Deposits in domestic offices, Efficiency ratio, Full-time equivalent employees, Loan-to-deposit ratio, Total loans and leases (gross), Net loans and leases, Net charge-offs to average loans, Net income (year to date), Net interest margin, Noncurrent loans to total loans, Number of offices, Return on assets (ROA), Return on equity (ROE), Available-for-sale securities (amortized cost), Available-for-sale securities (fair value), Held-to-maturity securities (amortized cost), Held-to-maturity securities (fair value), Total securities, Tier 1 leverage ratio, Total assets, Total deposits, Total equity capital, Total risk-based capital ratio, Uninsured share of domestic deposits, Estimated uninsured deposits, Unrealized gain/loss on available-for-sale securities, Unrealized gain/loss on held-to-maturity securities.

Checks for this release: Check A (database against the FDIC download) passed, Check B (FDIC against FFIEC Call Report filings) passed.

Source: FDIC BankFind Suite (Call Report data). EconoMonitor is not affiliated with or endorsed by the FDIC. FDIC BankFind Suite API.

Source: FFIEC Central Data Repository (Call Reports). EconoMonitor is not affiliated with or endorsed by the FFIEC. FFIEC Central Data Repository, Public Data Distribution.

Data and analysis only, not financial advice. The FDIC and the FFIEC do not endorse EconoMonitor. See the disclaimer and methodology.