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Sterling Bank

Barron, WI · Cert 6195 · Northwest Wisconsin Bcorp Inc.

State charter, non-member · FDIC · 4 branches

Q2 2026

Board Package

Performance Trends and Peer Comparison

Part 1Performance Trends, own institution only2
Part 2Peer Comparison, banks under $1B in assets in WI3

Basis

Quarter: Q2 2026, the quarter ended June 30, 2026, on both parts.

Income statement: year to date as filed, annualized, on both parts.

Balance sheet: as filed at quarter end.

Peer group

Banks under $1B in assets in WI (n=110 to 113). Each measure ranks only the institutions that reported it, so n varies by measure.

Peer groups below the disclosure floor are suppressed.

Peer standing

Capital

48

Q2 2024Q2 2026peer median (50)

Asset Quality

49

Q2 2024Q2 2026peer median (50)

Profitability

60

Q2 2024Q2 2026peer median (50)

Liquidity

83

Q2 2024Q2 2026peer median

Efficiency

73

Q2 2024Q2 2026peer median (50)

Growth

No peer data yet

Capital, Asset Quality, Profitability, Efficiency: higher is always a stronger peer standing (▲ better, ▼ worse). Liquidity, Growth: the score reflects closeness to the peer median -- 100 is sitting exactly at the median, falling the same way whether the bank runs above or below it.

Source: FFIEC Call Report (031/041/051), as filed. Dollar figures derived from reported amounts in thousands. Ratios computed by CallReports.ai using published regulatory formulas.

CallReports · callreports.ai · Board PackageGenerated 2026-10-11

Sterling Bank

Barron, WI · Cert 6195 · Northwest Wisconsin Bcorp Inc.

State charter, non-member · FDIC · 4 branches

Q2 2026

$352.4MAssets
$257.8MLoans
$314.5MDeposits
$32.5MEquity
Loan mix
94%RE $223.2M6%C&I $13.3M1%Consumer $2.0MQ2 2025Q2 2026
Deposit mix
80%Interest-bearing $251.7M20%Noninterest $62.8MQ2 2025Q2 2026

NIM

4.46%Q2 ’244.74%Q2 ’254.99%Q2 ’26+11%+16%

Non-interest income vs. expense

2.02%Q2 ’242.05%Q2 ’252.13%Q2 ’26-1%+3%

Executive Summary

  • Earnings: ROA of 1.29%, up 29 bps year over year; NIM at 3.43%.
  • Asset quality: problem loans at 0.02% of loans (+2 bps YoY), with net charge-offs at 0.03%.
  • Capital: tier 1 leverage ratio of 9.37%, up 35 bps from a year ago.
  • Funding: loans stand at 81.98% of deposits as of Q2 2026.

Financial Results

Return on Assets (YTD, annualized)

1.29%+29 bps YoY

Net Interest Margin (YTD, annualized)

3.43%+46 bps YoY

Efficiency Ratio (YTD, annualized)

55.58%-585 bps YoY

Tier 1 Leverage Ratio

9.37%+35 bps YoY

Year to date, annualized, through each quarter.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Earnings
Return on Assets1.00%1.06%1.14%1.24%1.29%+29 bps
Return on Equity11.54%12.13%12.99%13.96%14.31%+278 bps
Net Interest Margin2.97%3.08%3.14%3.37%3.43%+46 bps
Efficiency Ratio61.42%59.93%58.53%56.38%55.58%-585 bps
Non-Interest Burden1.68%1.70%1.68%1.74%1.73%+4 bps
Growth
Asset Growth (YoY)1.41%1.01%2.60%0.29%1.00%-41 bps
Loan Growth (YoY)4.47%5.78%8.75%6.85%6.44%+197 bps
Deposit Growth (YoY)5.75%5.35%4.47%1.68%0.05%-570 bps
Asset Quality
Nonperforming Loans / Loans0.00%0.04%0.04%0.04%0.02%+2 bps
Net Charge-Offs / Loans0.00%0.00%0.00%0.00%0.03%+3 bps
Allowance / Loans0.95%0.91%0.89%0.90%0.90%-5 bps
Allowance Coverage of NPLsn/a25.4x25.1x24.5x42.3xn/a
Capital
Tier 1 Leverage Ratio9.02%9.29%8.95%9.20%9.37%+35 bps
Total Risk-Based Capital14.27%14.59%13.99%14.57%14.52%+24 bps
Equity / Assets8.87%9.06%8.72%9.05%9.23%+36 bps
Liquidity & Funding
Loans / Deposits77.06%77.94%79.89%80.28%81.98%+492 bps
Liquid Assets / Assets23.27%23.02%22.03%22.59%21.03%-224 bps
CRE / Total Capitaln/a382%399%396%n/an/a

Source: FFIEC Call Report (031/041/051), as filed. Dollar figures derived from reported amounts in thousands. Ratios computed by CallReports.ai using published regulatory formulas. Income-statement figures are year-to-date as filed, annualized (the UBPR convention). Each quarter includes the ones before it.

CallReports · callreports.ai· Performance TrendsGenerated 2026-10-11

Sterling Bank

Barron, WI · Cert 6195 · Peer group: banks under $1B in assets in WI (n=110-113) · Northwest Wisconsin Bcorp Inc.

State charter, non-member · FDIC · 4 branches

Q2 2026

$352.4MAssets
$257.8MLoans
$314.5MDeposits
$32.5MEquity

Executive Summary

  • Strongest standing: return on equity outperforms 78% of banks under $1B in assets in WI (rank 25 of 113).
  • Widest gap: net charge-offs / loans trails 80% of banks under $1B in assets in WI (rank 89 of 110).
  • Overall: at or above the peer median on 6 of 9 directional measures.

Return on Assets

1.29%

Rank 44 of 113

Net Interest Margin

3.43%

Rank 67 of 113

Efficiency Ratio

55.58%

Rank 32 of 113

Equity / Assets

9.23%

Rank 83 of 113

Non-interest income vs. expense

$1.4M$7.6MINCOMEEXPENSE
Unfavorable gap of $6.1M · efficiency ratio beats 73% of banks under $1B in assets in WI
Bank 55.58%Peer median 62.4%Q3 2024Q2 2026Shaded: peer 25th to 75th percentile
MetricYour BankPeer 25thPeer MedianPeer 75thStandingRankPeer Position
Earnings
Return on Assets1.29%0.85%1.17%1.51%Beats 61%44 / 113
Return on Equity14.02%7.70%10.77%13.67%Beats 78%25 / 113
Net Interest Margin3.43%3.19%3.59%3.89%Beats 41%67 / 113
Efficiency Ratio55.58%54.61%62.43%71.88%Beats 73%32 / 113
Asset Quality
Nonperforming Loans / Loans0.02%0.03%0.24%0.91%Beats 77%26 / 110
Net Charge-Offs / Loans0.02%n/a0.00%0.01%Beats 20%89 / 110
Capital
Tier 1 Capital Ratio13.52%11.22%12.95%15.76%Beats 58%48 / 113
Total Risk-Based Capital Ratio14.52%11.57%13.59%16.73%Beats 60%45 / 113
Equity / Assets9.23%9.17%10.74%13.13%Beats 27%83 / 113
Liquidity & Funding
Loans / Deposits81.98%76.54%86.37%98.93%39th pctl68 / 112
Loans / Assets73.16%63.07%71.33%78.84%54th pctl52 / 113
Brokered Deposits / Depositsn/aNot reported for this institution