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NSB Bank

Mason City, IA · Cert 8094 · Northwood Finl Services Corp.

State charter, non-member · FDIC · 6 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 IA3

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 IA (n=134 to 135). 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

18

Q2 2024Q2 2026peer median (50)

Asset Quality

33

Q2 2024Q2 2026peer median (50)

Profitability

26

Q2 2024Q2 2026peer median (50)

Liquidity

91

Q2 2024Q2 2026peer median

Efficiency

59

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

NSB Bank

Mason City, IA · Cert 8094 · Northwood Finl Services Corp.

State charter, non-member · FDIC · 6 branches

Q2 2026

$460.8MAssets
$333.7MLoans
$400.6MDeposits
$38.9MEquity
Loan mix
77%RE $208.4M21%C&I $56.5M2%Consumer $6.1MQ3 2024Q2 2026
Deposit mix
81%Interest-bearing $324.7M19%Noninterest $75.9MQ3 2024Q2 2026

Executive Summary

  • Earnings: ROA of 0.75%, down 18 bps year over year; NIM at 2.94%.
  • Asset quality: problem loans at 0.32% of loans (-32 bps YoY), with net charge-offs at 0.30%.
  • Capital: tier 1 leverage ratio of 8.49%, up 10 bps from a year ago.
  • Funding: loans stand at 83.30% of deposits as of Q2 2026.

Return on Assets (YTD, annualized)

0.75%-18 bps YoY

Net Interest Margin (YTD, annualized)

2.94%+30 bps YoY

Efficiency Ratio (YTD, annualized)

54.16%-351 bps YoY

Tier 1 Leverage Ratio

8.49%+10 bps YoY

NIM

4.73%Q2 ’244.84%Q2 ’254.88%Q2 ’26+1%+11%

Non-interest income vs. expense

1.87%Q2 ’241.71%Q2 ’251.80%Q2 ’26-8%+2%

Year to date, annualized, through each quarter.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Earnings
Return on Assets0.82%0.83%1.00%0.93%1.01%0.99%0.66%0.75%-18 bps
Return on Equity11.36%11.50%13.81%12.72%13.43%12.89%8.15%9.17%-354 bps
Net Interest Margin2.47%2.41%2.72%2.65%2.74%2.72%2.91%2.94%+30 bps
Efficiency Ratio61.96%62.10%55.61%57.67%55.40%56.24%52.28%54.16%-351 bps
Non-Interest Burden1.37%1.33%1.34%1.36%1.34%1.36%1.33%1.39%+3 bps
Growth
Asset Growth (YoY)11.63%5.76%8.72%4.62%-1.10%1.27%1.98%-2.06%-668 bps
Loan Growth (YoY)13.12%8.35%7.21%4.98%1.13%3.29%2.77%-1.17%-615 bps
Deposit Growth (YoY)5.84%5.21%5.77%6.49%-0.14%1.05%2.42%-1.14%-763 bps
Asset Quality
Nonperforming Loans / Loans0.09%0.08%0.56%0.64%0.69%0.43%0.67%0.32%-32 bps
Net Charge-Offs / Loans0.00%0.01%-0.01%0.03%0.09%0.23%0.60%0.30%+28 bps
Allowance / Loans1.07%1.06%1.08%1.06%1.05%0.87%0.96%1.13%+7 bps
Allowance Coverage of NPLs11.6x13.6x1.9x1.7x1.5x2.0x1.4x3.5x+1.9x
Capital
Tier 1 Leverage Ratio8.42%8.13%8.56%8.38%8.54%8.28%8.46%8.49%+10 bps
Total Risk-Based Capital11.19%11.66%11.91%11.72%12.04%11.49%11.60%12.00%+28 bps
Equity / Assets7.31%7.09%7.35%7.57%8.10%8.23%7.92%8.44%+87 bps
Liquidity & Funding
Loans / Deposits81.75%84.24%81.56%83.32%82.79%86.10%81.84%83.30%-2 bps
Liquid Assets / Assets0.04%0.05%0.04%0.04%0.04%0.06%0.05%0.05%0 bps
CRE / Total Capitaln/an/an/an/a276%287%278%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

NSB Bank

Mason City, IA · Cert 8094 · Peer group: banks under $1B in assets in IA (n=134-135) · Northwood Finl Services Corp.

State charter, non-member · FDIC · 6 branches

Q2 2026

$460.8MAssets
$333.7MLoans
$400.6MDeposits
$38.9MEquity

Executive Summary

  • Strongest standing: efficiency ratio outperforms 59% of banks under $1B in assets in IA (rank 56 of 135).
  • Widest gap: equity / assets trails 92% of banks under $1B in assets in IA (rank 124 of 135).
  • Overall: at or above the peer median on 2 of 9 directional measures.

Return on Assets

0.77%

Rank 112 of 135

Net Interest Margin

2.94%

Rank 103 of 135

Efficiency Ratio

54.16%

Rank 56 of 135

Equity / Assets

8.44%

Rank 124 of 135

Non-interest income vs. expense

$1.9M$8.4MINCOMEEXPENSE
Unfavorable gap of $6.4M · efficiency ratio beats 59% of banks under $1B in assets in IA
Bank 54.16%Peer median 57.4%Q3 2024Q2 2026Shaded: peer 25th to 75th percentile
MetricYour BankPeer 25thPeer MedianPeer 75thStandingRank8-Qtr TrendPeer Position
Earnings
Return on Assets0.77%0.92%1.19%1.47%Beats 17%112 / 135
Return on Equity9.07%7.99%10.26%13.14%Beats 36%86 / 135
Net Interest Margin2.94%2.95%3.41%3.73%Beats 24%103 / 135
Efficiency Ratio54.16%50.61%57.35%63.29%Beats 59%56 / 135
Asset Quality
Nonperforming Loans / Loans0.32%0.03%0.51%1.26%Beats 57%58 / 134
Net Charge-Offs / Loans0.15%n/a0.01%0.03%Beats 8%124 / 134
Capital
Tier 1 Capital Ratio10.94%11.23%13.31%15.45%Beats 19%110 / 135
Total Risk-Based Capital Ratio12.00%11.61%14.06%16.47%Beats 27%98 / 135
Equity / Assets8.44%9.87%11.05%13.07%Beats 8%124 / 135
Liquidity & Funding
Loans / Deposits83.30%68.54%81.55%91.24%54th pctl62 / 134
Loans / Assets72.42%57.61%68.06%76.23%61st pctl53 / 135
Brokered Deposits / Depositsn/aNot reported for this institution