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ION Bank

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Naugatuck, CT $1B to $10B in assets Est. January 1, 1870 FDIC #18198 RSSD #407506 Routing #211174178 Federal Reserve

Data as of · sourced from FFIEC call reports. How we update

ION Bank is an FDIC-insured commercial bank headquartered in Naugatuck, CT, established in 1870 (FDIC certificate 18198), and it is supervised by the Federal Reserve. At Q2 2026 it reported total assets of $2.78B, down 0.1% from Q2 2025, the 4th largest of 27 banks headquartered in Connecticut. Its CET1 capital ratio was 15.75% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.

Charter
Commercial bank
Regulator
Federal Reserve
Deposit insurance
FDIC
FDIC certificate
18198
Headquarters
Naugatuck, CT
Established
1870
Total assets, Q2 2026
$2.78B
Assets vs Q2 2025
-0.1%
CET1 ratio, Q2 2026
15.75%
Domestic offices
37 FDIC institution directory, current count
Routing number
211174178
Holding company
ION FINANCIAL, MHC, INC.
Asset rank in state
4th of 27 in Connecticut
Assets
$2.78B
Deposits
$2.28B
Loans
$2.01B
Equity
$341.2M

Problem loans are rising at ION Bank. The Naugatuck, Connecticut bank had $2.8 billion in assets at June 30, 2026. Loans on nonaccrual or 90 or more days past due, net of government guarantees, rose to 1.49% of loans from 0.72% a year earlier. It shrank its loan book 1.0% over the year, lower than about three-quarters of the 895 banks with $1 billion to $10 billion in assets (median 5.9%). It also carries problem assets equal to 10.3% of the capital and reserves that would absorb them, about triple the median of 3.6% for banks its size.

Net income for the quarter slipped 19% from a year earlier, to $6.9 million. The non-owner-occupied commercial real estate book ($444 million) is worsening: 3.00% of it is past due or on nonaccrual, up from 1.78% a year earlier. Costs are the weak spot: it spends about 72 cents to bring in each dollar of revenue, higher than about three-quarters of banks its size (median 58 cents).

As of June 30, 2026, ION Bank reported a CET1 capital ratio of 15.75%, a return on assets of 1.01%, a nonperforming-loan ratio of 1.49% and a Texas ratio of 10.31%. The figures come from its call report filed with the FFIEC.

ION Bank ranks as the 4th largest of the 27 banks based in Connecticut, by total assets at Q2 2026. Between Q1 2026 and Q2 2026, its total assets rose 0.5% to $2.78B, loans fell 2.0% and deposits rose 0.8%. 1-4 family residential loans made up 28.0% of its total loans on June 30, 2026, its largest category; next came non-owner-occupied commercial real estate loans at 22.1%. The FDIC Summary of Deposits lists 36 offices for it, in 29 cities across 2 states; its Naugatuck 4 offices book 19% of its branch deposits. By the capital ratios in its Q2 2026 call report, ION Bank meets every capital ratio test for well capitalized.

Headquarters Profile

Address
251 Church St, Naugatuck, CT 06770
County
Naugatuck Valley
Metro Area
Waterbury-Shelton, CT
Charter
Commercial bank, state charter, Fed member, FRB-supervised
Primary Regulator
Federal Reserve
FDIC Region
New York (Region 2)
Federal Reserve member
Yes
Federal Reserve district
District 1, Boston
Fiduciary (trust) powers
Full trust powers granted
Call Report form
FFIEC 051
Established
January 1, 1870
Former names
Naugatuck Savings Bank (1971-2013)
Domestic offices
37 FDIC institution directory, current count
Employees (FTE)
371
Domestic deposits
$2.28B
Allowance for credit losses
$22.3M
Net charge-offs (YTD)
$1.3M
Average total assets
$2.75B
Average total loans
$2.03B
Average interest-bearing deposits
$1.55B
Tax status
C corporation
Ownership
Stock
Community bank
No
FDIC-insured since
July 1, 1960
FDIC Cert
18198
Fed RSSD
407506
SEC CIK
1719266 → filed by ION FINANCIAL, MHC, INC.

Profitability

Q2 annualized
Return on Assets1.01%YTD 0.93%
Return on Equity8.22%YTD 7.63%
Net Interest Margin4.24%YTD 4.16%

Balance Sheet

Total liabilities$2.44B
Cash & balances due$347.8M
Securities, available-for-sale$239.5M
Securities, held-to-maturity$0
Goodwill & intangibles$9.2M

Income Statement

Net income Q2$6.9M
Net interest income YTD$53.6M
Total interest income YTD$69.9M
Total interest expense YTD$16.3M
Provision for credit losses YTD$1.2M

Operating & Funding

Total noninterest income YTD$13.2M
Total noninterest expense YTD$49.6M

Ratios tagged annualized use the Q2 income alone. The UBPR and FDIC annualize the year to date instead. FDIC BankFind divides by the average of quarter-end total assets, the UBPR by RC-K average assets. The YTD margin is the UBPR's tax-equivalent figure over its own average earning assets; FDIC BankFind's margin is not tax-equivalent. How we compute these figures

Quarterly trends

From Q3 2023 to Q2 2026, ION Bank's total assets ranged from $2.10B (Q1 2024) to $2.79B (Q2 2025), and it earned a profit in 11 of the 12 quarters. The line under each chart compares Q2 2026 with Q2 2025. How these charts are built

Total assets and total liabilities

$2.78B total assets against $2.79B; $2.44B total liabilities against $2.45B.

Loans and leases against deposits

$1.99B net loans and leases against $2.01B; $2.28B total deposits against $2.28B.

Securities and cash

$239.5M securities against $289.2M; $347.8M cash and balances due against $263.3M.

Interest income against interest expense

$35.5M total interest income against $32.9M; $8.1M total interest expense against $8.6M.

Net interest income

$27.4M net interest income against $24.3M.

Noninterest income against noninterest expense

$6.6M total noninterest income against $16.7M; $24.9M total noninterest expense against $30.9M.

Provision for credit losses

$391K provision for credit losses against $3.2M.

Net income

$6.9M net income against $8.6M.

Return on assets and net interest margin

1.01% return on assets against 1.33%; 4.24% net interest margin against 4.07%.

CET1 and Tier 1 leverage ratios

15.75% CET1 capital ratio against 15.64%; 11.91% tier 1 leverage ratio against 12.63%.

Inside the full ION Bank terminal

21 quarters of trends · 8 tabs · peer percentiles · watchlist alerts

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Watch flags

Automated conditions triggered on this bank's latest filing. Advisory only; see the source metric pages for full context. Each flag is tagged Regulatory when it cites an official supervisory threshold, or BRR analysis when it's our own band, informed by our data and models.

CRE concentration at 243% of capital, approaching guidance BRR analysis What does this mean? →

Commercial real estate loans are between 200% and 300% of total capital, approaching the 2006 interagency guidance threshold of 300% that triggers heightened supervisory attention. BankRegReports early-warning band below the 300% guidance.

Banks merged into ION Bank

Quarterly trend: last 8 quarters

From Q3 2024 to Q2 2026, its return on assets ran from -0.14% (Q4 2025) to 1.33% (Q2 2025) and its net interest margin ran from 3.40% (Q3 2024) to 4.24% (Q2 2026).

Quarter CET1 ROA NPL Texas NIM
Q2 2026 15.75% 1.01% 1.49% 10.31% 4.24%
Q1 2026 15.30% 0.85% 1.01% 7.22% 4.07%
Q4 2025 14.87% -0.14% 0.87% 6.45% 4.11%
Q3 2025 15.78% 0.98% 0.59% 5.01% 3.97%
Q2 2025 15.64% 1.33% 0.72% 5.92% 4.07%
Q1 2025 12.25% 1.01% 0.33% 4.79% 3.90%
Q4 2024 12.52% 0.49% 0.32% 4.76% 3.72%
Q3 2024 12.66% 0.93% 0.36% 5.02% 3.40%

Swipe the table sideways to see every column.

Branch Network

View all 36 branches → Branch count from the FDIC Summary of Deposits, June 30, 2026. The domestic office count above is the FDIC's current figure, so the two can differ.

1–25 of 36
Branch Location ZIP Deposits
Church Street Branch Naugatuck , CT 06770 $325.2M
Oxford Branch Oxford , CT 06478 $202.6M
Cheshire Branch Cheshire , CT 06410 $116.0M
Prospect Branch Prospect , CT 06712 $103.1M
Middlebury Branch Middlebury , CT 06762 $97.7M
New Haven Road Branch Naugatuck , CT 06770 $96.5M
West Main Street Branch Meriden , CT 06451 $95.6M
Southbury Branch Southbury , CT 06488 $90.9M
Hamden Branch Hamden , CT 06518 $83.2M
Ansonia Branch Ansonia , CT 06401 $82.4M
Nve Bank Branch Englewood , NJ 07631 $80.1M
Farmington Branch Farmington , CT 06032 $79.0M
Watertown Branch Watertown , CT 06795 $70.6M
Cresskill Branch Cresskill , NJ 07626 $70.4M
Wallingford Branch Wallingford , CT 06492 $70.2M
Woodbury Branch Woodbury , CT 06798 $69.8M
Lincoln Park Branch Lincoln Park , NJ 07035 $63.5M
Meriden Branch Meriden , CT 06450 $50.7M
Waterbury Branch Waterbury , CT 06705 $45.0M
Waterbury Branch Waterbury , CT 06705 $43.0M
Montville Branch Montville , NJ 07045 $42.9M
New Milford Branch New Milford , NJ 07646 $41.4M
Closter Branch Closter , NJ 07624 $35.3M
Bergenfield Branch Bergenfield , NJ 07621 $34.5M
Unionville Branch Office Unionville , CT 06085 $30.7M

Events & Regulatory History

Mergers, charter changes, enforcement actions, FDIC assistance, and (if applicable) failure events recorded against this institution. Click a year to see what else was happening across US banking that year.

Date Category Event Source
April 29, 2025 Structure Change Acquired NVE Bank Charter Discontinued (Merger or Purchase & Assumption) for the acquired bank FFIEC NIC
April 28, 2025 Merger Participated in Absorption/Consolidation/Merger FDIC
July 1, 2022 Merger Participated in Absorption/Consolidation/Merger FDIC
July 1, 2022 Structure Change Acquired Lincoln 1st Bank Charter Discontinued (Merger or Purchase & Assumption) for the acquired bank FFIEC NIC
August 8, 2009 Merger Participated in Absorption/Consolidation/Merger FDIC
August 8, 2009 Structure Change Acquired Castle Bank & Trust Company Charter Discontinued (Merger or Purchase & Assumption) for the acquired bank FFIEC NIC

Sourced from the bank event history (FDIC, Federal Reserve NIC, OCC, and OTS). Showing the most recent 6 events.

Regulatory record

Facts as filed or published, not a rating.

Deposit market share
1.0% of deposits in CT, rank 14 of 46 institutions
Period: June 30, 2026. Source: FDIC Summary of Deposits.
Mortgage lending (HMDA)
657 applications, 450 loans originated, $122.8M originated, across 3 states
Period: Calendar year 2025. Source: FFIEC HMDA loan application register.
SBA 7(a) lending
9 loans, $3.1M approved, $348K average. 0.00% of that year's loans have since been charged off
Period: Federal fiscal year 2025 (October to September). Source: SBA 7(a) and 504 loan data (FOIA).
Not on file
Enforcement actions, Consumer complaints, CFPB enforcement, CRA examination rating. No record from these sources, which is not the same as a clean record. Sources

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ION Bank: regulatory capital profile · BankRegReports

Frequently asked about ION Bank

What are ION Bank's total assets?

As of the Q2 2026 filing, ION Bank reported total assets of $2.78 billion in its FFIEC call report.

Where is ION Bank headquartered?

It is headquartered in Naugatuck, CT, United States.

When was ION Bank founded?

It was established in 1870, per the FDIC institution directory.

Is ION Bank FDIC-insured?

Yes. It is an FDIC-insured commercial bank (FDIC Certificate #18198). Deposits are insured up to $250,000 per depositor, per insured bank, for each account ownership category, per FDIC rules.

Who regulates ION Bank?

ION Bank's primary federal regulator is the Federal Reserve.

What is ION Bank's CET1 capital ratio?

It reported a Common Equity Tier 1 (CET1) capital ratio of 15.75% in its Q2 2026 call report, comfortably above the 7% level required once the capital conservation buffer is included.

How many branches does ION Bank operate?

It operates 37 domestic offices, per the FDIC institution directory. That count includes administrative and limited-service offices as well as full-service branches.

What is ION Bank's Texas Ratio?

Its Texas Ratio is 10.31% in its Q2 2026 call report, within the healthy range (at or below 50%, the level at which problem assets reach half of the capital cushion). The Texas Ratio measures non-performing assets against the bank's capital and reserves.

What was ION Bank previously called?

The charter now named ION Bank has also operated as Naugatuck Savings Bank (1971-2013), per FDIC structure-change records.

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