Ion Bank

FDIC-insured bank with its head office in Naugatuck, Connecticut, established in 1870 according to the FDIC.

Ion Bank reported total assets of $2.8 bn at Q2 2026, down 0.1% on a year earlier, the 456th largest of 497 banks in our US coverage. The CET1 capital ratio at Ion Bank was 15.75%, and the uninsured share of Ion Bank was 21.70%. Source: FDIC Call Reports.

Key takeaways

  • On return on equity (ROE), Ion Bank slipped from 246th to 424th among 500 US banks between and (1 = highest; FDIC Call Reports).
  • Since , Ion Bank has taken over 2 institutions; the latest was NVE Bank on (FDIC Call Reports).
Total assets
$2.8 bn
-0.1% on a year earlier
Rank 456 of 497 1 = highest
CET1 capital ratio
15.75%
+0.11 pp on a year earlier
Rank 91 of 448 1 = highest
Return on equity
7.63%
-3.28 pp on a year earlier
Rank 424 of 500 1 = highest
Uninsured share of deposits
21.70%
-0.20 pp on a year earlier
Rank 399 of 500 1 = highest

What sets Ion Bank apart

How large is Ion Bank?

The balance sheet of Ion Bank at : assets $2.8 bn, deposits $2.3 bn, net loans $2.0 bn (loans equal to 87.32% of deposits). Securities make up 8.6% of total assets at Ion Bank. Since , when Ion Bank held $1.1 bn, its assets grew 145.1%. In the year to , deposits at Ion Bank fell 0.1% while its total assets fell 0.1%. At , Ion Bank employed 371 full-time equivalent staff across 37 offices, about $7.5 mn of assets per employee and $61.6 mn of deposits per office.

How much funding at Ion Bank is uninsured?

At Ion Bank, uninsured deposits (above the FDIC limit) made up 21.70% of domestic deposits at (-0.20 pp on a year earlier); Ion Bank ranks 399th of 500 on this measure. In dollars, Ion Bank estimated $494.3 mn of uninsured deposits.

Key facts, Q2 2026

MetricValueChange from a year earlierUS rank
Total deposits$2.3 bn-0.1%461st of 499
Net loans and leases$2.0 bn-1.0%443rd of 500
Loan-to-deposit ratio87.32%-0.80 pp247th of 500
Tier 1 leverage ratio11.91%-0.72 pp101st of 500
Total risk-based capital ratio16.82%+0.16 pp95th of 448
Net interest margin4.23%+0.15 pp94th of 500
Return on assets (ROA)0.93%-0.27 pp407th of 500
Efficiency ratio72.60%-0.28 pp449th of 500 (1 = lowest)
Unrealized gain/loss on available-for-sale securitiesLoss of $7.3 mnNarrowed by $986,000
Noncurrent loans to total loans1.49%+0.77 pp425th of 500 (1 = lowest)
Net charge-offs to average loans0.12%+0.02 pp295th of 500 (1 = lowest)

US rank of Ion Bank: 1 = highest unless marked 1 = lowest.

Balance sheet

Ion Bank: assets, deposits and loans

USD bn
Total assets, deposits and net loans of Ion Bank each quarter; total assets were $2.8 bn at Q2 2026$790mn$1.3bn$1.8bn$2.4bn$2.9bn20182020202220242026Lincoln 1st Bank merged inNVE Bank merged inTotal assets$2.8bnDeposits$2.3bnNet loans$2.0bnTotal assets, deposits and net loans of Ion Bank each quarter; total assets were $2.8 bn at Q2 2026$790mn$1.5bn$2.2bn$2.9bn20202024
  • Total assets $2.8bn
  • Deposits $2.3bn
  • Net loans $2.0bn
to . FDIC Call Reports.

Capital and securities

The CET1 ratio of Ion Bank stood at 15.75% in , +0.11 pp year on year. Low and high at Ion Bank since : 11.29% () to 15.78% (). Equity capital of Ion Bank at : $341.2 mn, or 12.3% of total assets. Ion Bank also reported a total capital ratio of 16.82% for , and a tier 1 leverage ratio of 11.91%.

The available-for-sale portfolio of Ion Bank showed an unrealized loss of $7.3 mn at ; the loss narrowed by $986,000 over the year.

Ion Bank: capital ratios

Percent
CET1, total risk-based capital and tier 1 leverage ratios of Ion Bank, Q1 2016 to Q2 20267.8%10%13%15%17%20182020202220242026Total capital17%CET116%Tier 1 leverage12%CET1, total risk-based capital and tier 1 leverage ratios of Ion Bank, Q1 2016 to Q2 20267.8%11%14%17%20202024
  • Total capital 17%
  • CET1 16%
  • Tier 1 leverage 12%
to . FDIC Call Reports.

Ion Bank: unrealized securities gains and losses

USD bn
Unrealized gains and losses on available-for-sale and held-to-maturity securities of Ion Bank, Q1 2016 to Q2 2026-$25mn-$17mn-$10mn-$3mn$4mn20182020202220242026Held to maturity$0Available for sale-$7mnUnrealized gains and losses on available-for-sale and held-to-maturity securities of Ion Bank, Q1 2016 to Q2 2026-$25mn-$15mn-$6mn$4mn20202024
  • Available for sale -$7mn
  • Held to maturity $0
to . FDIC Call Reports.

Profitability and loan quality

For the year to , Ion Bank earned a return on equity of 7.63%; return on assets: 0.93%. Net interest margin at Ion Bank: 4.23%, +0.15 pp in a year. Ion Bank net income: $12.8 mn, down 8.8% year on year. The efficiency ratio of Ion Bank was 72.60%: about 73 cents cost per revenue dollar, against 61 cents at the median peer.

At , noncurrent loans were 1.49% of total loans at Ion Bank; net charge-offs: 0.12% of average loans. Gross loans and leases at Ion Bank: $2.0 bn, down 1.0% in a year.

Ion Bank: profitability

Percent, annualized
Return on equity, net interest margin and return on assets of Ion Bank, Q1 2016 to Q2 2026-7.1%-2.1%3.0%8.0%13%20182020202220242026Return on equity7.6%Net interest margin4.2%Return on assets0.9%Return on equity, net interest margin and return on assets of Ion Bank, Q1 2016 to Q2 2026-7.1%-0.4%6.3%13%20202024
  • Return on equity 7.6%
  • Net interest margin 4.2%
  • Return on assets 0.9%
to . FDIC Call Reports.

Peer group of Ion Bank

The peer group of Ion Bank is the 6 banks nearest to it by total assets at : 3 larger and 3 smaller. Of the peers, 3 share the charter type of Ion Bank (state member bank), 6 sit in the same size group ($1 bn to $10 bn) and 0 have head offices in Connecticut. Against them, Ion Bank shows CET1 ratio 15.75% against a peer median of 14.29%, return on equity 7.63% against a peer median of 9.75% and uninsured deposit share 21.70% against a peer median of 34.84%.

BankCharterStateTotal assetsCET1 ratioReturn on equityUninsured share
Bank of New HampshireState member bankNH$2.8 bn13.75%8.46%18.99%
Orange Bank & Trust CompanyState member bankNY$2.8 bn17.95%17.03%60.78%
Citizens and Farmers BankState nonmember bankVA$2.8 bn13.54%11.04%30.51%
Ion BankState member bankCT$2.8 bn15.75%7.63%21.70%
Sunrise BanksNational bankSD$2.8 bnnot reported3.75%15.33%
Quad City Bank and Trust CompanyState member bankIA$2.8 bn14.29%13.89%50.97%
Avidia BankState-chartered stock savings bankMA$2.8 bn15.47%8.29%39.16%

. FDIC Call Reports.

Last eight quarters

Two years at Ion Bank, to : assets +30.6%, deposits +27.1%, equity +60.7%. Staff 322 to 371; offices 26 to 37.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
Total assets$2.1 bn$2.1 bn$2.2 bn$2.8 bn$2.8 bn$2.7 bn$2.8 bn$2.8 bn
Total deposits$1.8 bn$1.8 bn$1.8 bn$2.3 bn$2.3 bn$2.2 bn$2.3 bn$2.3 bn
Bank equity capital$212.4 mn$214.4 mn$219.0 mn$338.7 mn$346.9 mn$329.9 mn$335.0 mn$341.2 mn
CET1 ratio12.66%12.52%12.25%15.64%15.78%14.87%15.30%15.75%
Return on equity (ROE)8.31%7.43%10.01%10.91%9.96%6.88%7.04%7.63%
Uninsured share of domestic deposits20.38%22.61%23.58%21.90%21.15%20.90%20.66%21.70%
Full-time equivalent employees322329318390381398394371
Number of offices2626263737373737

FDIC Call Reports.

Mergers and acquisitions

The FDIC history of Ion Bank, oldest first; figures before and after each event are not like for like.

  1. . Absorbed Lincoln 1st Bank (FDIC certificate 28963).
  2. . Absorbed NVE Bank (FDIC certificate 29875).

Large one-quarter moves at Ion Bank

  • Total assets at Ion Bank changed by +29.0% in the quarter to 2025-06-30: Merger -Without Assistance; Participated in Absorbtion/Consolidation/Merger: acquired from NVE Bank.

Questions and identifiers

What were the total assets of Ion Bank?

Ion Bank reported $2.8 bn at in its Call Report. That makes Ion Bank the 456th largest of 497 banks in our US coverage.

Is Ion Bank the same as its holding company?

No. This page covers Ion Bank, FDIC certificate 18198; ION FINANCIAL MHC INC (as reported to the FDIC), its holding company, reports separately to the Federal Reserve.

Is Ion Bank profitable?

Ion Bank reported net income of $12.8 mn for the year to ; annualized return on equity: 7.63%. So yes: Ion Bank made a profit over these months.

When is data for Ion Bank next updated?

Figures from Ion Bank for are due after .

Where can I check the figures for Ion Bank?

In the FDIC BankFind Suite record for certificate 18198, and in the Call Reports of Ion Bank (RSSD ID 407506) at the FFIEC Central Data Repository.