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Security Trust & Savings Bank

Storm Lake, IA · Cert 968 · Storm Lake Security Bcorp

State charter, Fed member · FED · 3 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

72

Q2 2024Q2 2026peer median (50)

Asset Quality

30

Q2 2024Q2 2026peer median (50)

Profitability

33

Q2 2024Q2 2026peer median (50)

Liquidity

0

Q2 2024Q2 2026peer median

Efficiency

56

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

Security Trust & Savings Bank

Storm Lake, IA · Cert 968 · Storm Lake Security Bcorp

State charter, Fed member · FED · 3 branches

Q2 2026

$266.4MAssets
$79.7MLoans
$239.4MDeposits
$26.4MEquity
Loan mix
84%RE $45.4M12%C&I $6.5M3%Consumer $1.8MQ2 2025Q2 2026
Deposit mix
92%Interest-bearing $221.1M8%Noninterest $18.3MQ2 2025Q2 2026

NIM

4.58%Q2 ’244.40%Q2 ’254.26%Q2 ’26+28%+15%

Non-interest income vs. expense

1.44%Q2 ’241.40%Q2 ’251.49%Q2 ’26-2%+7%

Executive Summary

  • Earnings: ROA of 1.01%, up 23 bps year over year; NIM at 2.67%.
  • Asset quality: problem loans at 0.78% of loans (+1 bps YoY), with net charge-offs at 0.09%.
  • Capital: tier 1 leverage ratio of 10.41%, up 70 bps from a year ago.
  • Funding: loans stand at 33.31% of deposits as of Q2 2026.

Financial Results

Return on Assets (YTD, annualized)

1.01%+23 bps YoY

Net Interest Margin (YTD, annualized)

2.67%+35 bps YoY

Efficiency Ratio (YTD, annualized)

54.08%-373 bps YoY

Tier 1 Leverage Ratio

10.41%+70 bps YoY

Year to date, annualized, through each quarter.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Earnings
Return on Assets0.79%0.82%0.83%0.96%1.01%+23 bps
Return on Equity9.34%9.52%9.49%10.30%10.61%+127 bps
Net Interest Margin2.32%2.38%2.37%2.61%2.67%+35 bps
Efficiency Ratio57.80%56.32%56.19%55.42%54.08%-373 bps
Non-Interest Burden1.32%1.31%1.31%1.42%1.42%+10 bps
Growth
Asset Growth (YoY)2.03%-0.37%1.33%0.60%-0.79%-282 bps
Loan Growth (YoY)1.56%0.57%2.25%0.85%3.05%+149 bps
Deposit Growth (YoY)0.84%-1.11%-0.32%-0.33%-1.83%-267 bps
Asset Quality
Nonperforming Loans / Loans0.76%0.77%0.71%0.79%0.78%+1 bps
Net Charge-Offs / Loans0.04%0.02%0.01%-0.01%0.09%+6 bps
Allowance / Loans1.72%1.76%1.69%1.75%1.70%-3 bps
Allowance Coverage of NPLs2.3x2.3x2.4x2.2x2.2x-0.1x
Capital
Tier 1 Leverage Ratio9.71%10.14%9.84%10.27%10.41%+70 bps
Total Risk-Based Capital31.62%33.13%31.02%32.59%33.02%+141 bps
Equity / Assets8.95%9.06%9.49%9.19%9.91%+96 bps
Liquidity & Funding
Loans / Deposits31.73%29.56%33.14%30.98%33.31%+158 bps
Liquid Assets / Assets29.92%34.64%30.13%33.54%30.20%+28 bps
CRE / Total Capitaln/a15.18%10.59%9.95%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

Security Trust & Savings Bank

Storm Lake, IA · Cert 968 · Peer group: banks under $1B in assets in IA (n=134-135) · Storm Lake Security Bcorp

State charter, Fed member · FED · 3 branches

Q2 2026

$266.4MAssets
$79.7MLoans
$239.4MDeposits
$26.4MEquity

Executive Summary

  • Strongest standing: tier 1 capital ratio outperforms 95% of banks under $1B in assets in IA (rank 7 of 135).
  • Widest gap: net interest margin trails 89% of banks under $1B in assets in IA (rank 120 of 135).
  • Overall: at or above the peer median on 4 of 9 directional measures.

Return on Assets

1.04%

Rank 86 of 135

Net Interest Margin

2.67%

Rank 120 of 135

Efficiency Ratio

54.66%

Rank 60 of 135

Equity / Assets

9.91%

Rank 98 of 135

Non-interest income vs. expense

$0.2M$4.1MINCOMEEXPENSE
Unfavorable gap of $3.9M · efficiency ratio beats 56% of banks under $1B in assets in IA
Bank 54.66%Peer median 57.4%Q3 2024Q2 2026Shaded: peer 25th to 75th percentile
MetricYour BankPeer 25thPeer MedianPeer 75thStandingRankPeer Position
Earnings
Return on Assets1.04%0.92%1.19%1.47%Beats 36%86 / 135
Return on Equity10.53%7.99%10.26%13.14%Beats 53%64 / 135
Net Interest Margin2.67%2.95%3.41%3.73%Beats 11%120 / 135
Efficiency Ratio54.66%50.61%57.35%63.29%Beats 56%60 / 135
Asset Quality
Nonperforming Loans / Loans0.78%0.03%0.51%1.26%Beats 40%82 / 134
Net Charge-Offs / Loans0.05%n/a0.01%0.03%Beats 20%108 / 134
Capital
Tier 1 Capital Ratio31.77%11.23%13.31%15.45%Beats 95%7 / 135
Total Risk-Based Capital Ratio33.02%11.61%14.06%16.47%Beats 95%7 / 135
Equity / Assets9.91%9.87%11.05%13.07%Beats 27%98 / 135
Liquidity & Funding
Loans / Deposits33.31%68.54%81.55%91.24%1st pctl132 / 134
Loans / Assets29.93%57.61%68.06%76.23%2nd pctl132 / 135
Brokered Deposits / Depositsn/aNot reported for this institution