FDIC Cert #4178 · Tulsa, Oklahoma · Est. 1902

Security Bank - FDIC Bank Health Profile

A community-scale look at Security Bank's own numbers, pulled straight from its quarterly FDIC Call Report.

$898M
Total assets
A
Health grade · Excellent
2.31%
Return on assets
13.3%
Tier 1 capital

Data updated July 2026

The verdict

Security Bank earns a PlainBankData health grade of A (95/100), with well-capitalized at 13.26% Tier 1, profitable at 2.31% ROA, efficient (40% cost ratio).

#1,144
largest of 4,313 FDIC banks by assets
74th
percentile by asset size, nationally
13.26%
Tier 1 ratio - above the 10% well-capitalized line
95th
percentile for profitability (ROA), nationally

This grade is PlainBankData's own interpretation of the bank's Call Report, not an FDIC rating, deposits here stay federally insured to $250,000 per depositor, per category, regardless of grade.

How Security Bank's 95/100 score adds up

Each factor is scored from this bank's own FDIC Call Report figures, then summed to the composite health score.

Security Bank's composite health score

0/100100/100National avg77/10095/100
Security Bank's composite health score
Tier 1 Capital Ratio (13.26%) 35/40
Return on Assets (ROA) (2.31%) 25/25
Texas Ratio (1.87%) 20/20
Efficiency Ratio (40.26%) 15/15

95 of 100 points earned across four weighted factors. See our methodology for the full scoring formula.

Balance sheet at a glance

Total Assets

$898M

Total balance-sheet footings

Total Deposits

$792M

Customer-funded liabilities

Net Loans

$736M

Outstanding loan book

Net Income

$21M

Bottom-line earnings

Capital adequacy vs federal thresholds

0% 3% 6% 9% 12% 15% CET1 (≥6.5% req.) Tier 1 (≥8.0% req.) Total (≥10.0% req.) 11.86% 13.26% 14.66%
Basel III capital ratios - Security Bank

Where Security Bank ranks

Every one of the 4,307 FDIC-insured banks with a computed health score, bucketed by score. Security Bank's score of 95/100 falls in the highlighted band.

Security Bank's size among FDIC-insured banks

Every one of the 4,307 FDIC-insured banks with reported assets, bucketed by total-asset scale (note the buckets are powers of 10, most banks cluster in the $100M-$1B range). Security Bank's $898M falls in the highlighted band.

Safety metrics

Tier 1 capital ratio
Well-capitalized 10%

13.26% of risk-weighted assets - above the federal "well-capitalized" threshold of 10%.

Tier 1 Capital Ratio
13.26%
Texas Ratio
1.87%
Equity Capital
$103M

What these ratios mean →

Profitability metrics

Return on Assets (ROA)
95th percentile nationally
2.31%
Return on Equity (ROE)
20.56%
Efficiency Ratio
40.26%

What these mean →

What the numbers say about Security Bank

Security Bank is an FDIC-insured institution (Certificate #4178) headquartered in Tulsa, Oklahoma, established in 1902. It holds $898M in total assets - 1,144th of 4,313 FDIC-insured banks, $792M in customer deposits, and $736M in net loans. Capital-wise, the Tier 1 ratio sits at 13.26%, clearing the federal 10% well-capitalized bar; the Texas Ratio reads 1.87%, a healthy figure under the 50% watch level. That combination rolls up into a PlainBankData health grade of A (95 of 100), blending Tier 1 capital, ROA, the Texas Ratio, and efficiency. These figures come directly from the bank's quarterly FDIC Call Report.

Security Bank sits 30th of 172 banks headquartered in Oklahoma by total assets, placing it in the middle tier of the state's banking landscape.

Income & expense breakdown

$63M
Interest Income
$1M
Non-Interest Income
$15M
Non-Interest Expense

Asset quality, Texas Ratio detail

The Texas Ratio compares troubled assets to the capital available to absorb losses. Security Bank reports a Texas Ratio of 1.87% - comfortably in the healthy band; non-performing loans are a small fraction of the bank’s loss-absorbing capital.

Texas Ratio
Caution 50%

1.87% - lower is safer; 100% is the level at which troubled assets equal loss-absorbing capital.

FDIC Failed Bank List → View Security Bank on FDIC BankFind →

Top banks in Oklahoma by total assets

Largest banks headquartered in Oklahoma
  1. 1
    BOKF $52.0B

    Tulsa, OK · Grade A

  2. 2
    MidFirst Bank $41.4B

    Oklahoma City, OK · Grade B

  3. 3

    Durant, OK · Grade B

  4. 4
    BancFirst $12.1B

    Oklahoma City, OK · Grade A

  5. 5
    InterBank $5.5B

    Oklahoma City, OK · Grade B

Top 5 banks in Oklahoma ranked by total assets · FDIC Call Report Q4 2025.

Source: FDIC BankFind Suite, Call Report (FFIEC 031/041) Security Bank (FDIC Cert #4178) - Tier 1 capital ratio, total assets, deposits, ROA/ROE · 2025 FDIC Call Reports filed quarterly; latest publicly-available vintage shown. Health grades are PlainBankData's interpretation of regulatory filings and are not official FDIC ratings.

Other banks in Oklahoma

All Oklahoma banks →
BankAssetsGradeROA
BOKF, National AssociationTulsa $52.0B A 1.10%
MidFirst BankOklahoma City $41.4B B 1.19%
First United Bank and Trust CompanyDurant $16.3B B 0.97%
BancFirstOklahoma City $12.1B A 1.79%
InterBankOklahoma City $5.5B B 3.60%
Stride Bank, National AssociationEnid $4.9B A 2.10%
RCB BankClaremore $4.1B A 1.32%
First Fidelity BankOklahoma City $2.9B B 0.94%

Frequently asked questions

What is Security Bank's health grade?
Security Bank receives a health grade of A (95/100) based on four FDIC financial metrics: Tier 1 Capital Ratio (40%), Return on Assets (25%), Texas Ratio (20%), and Efficiency Ratio (15%). This bank demonstrates excellent financial health with strong capital ratios and profitability.
How large is Security Bank?
Security Bank holds $898M in total assets and $792M in deposits, ranking 1,144th of 4,313 FDIC-insured banks by asset size. It is headquartered in Tulsa, Oklahoma.
Is my money safe at Security Bank?
Yes, deposits at Security Bank (Certificate #4178) are FDIC-insured up to $250,000 per depositor, per ownership category, regardless of health grade.
What is Security Bank's Tier 1 Capital Ratio?
Security Bank has a Tier 1 Capital Ratio of 13.26%. That clears the federal 10% bar regulators use to call a bank "well-capitalized."
What is the Texas Ratio for Security Bank?
Security Bank has a Texas Ratio of 1.87%. Staying under 50% is the level analysts treat as healthy. The Texas Ratio measures non-performing loans against equity and reserves, a higher ratio signals greater exposure to loan losses.
How efficient is Security Bank?
Security Bank has an Efficiency Ratio of 40.26%. Under the 60% mark counts as efficient, more of every revenue dollar reaches the bottom line. This metric compares non-interest expenses to total revenue.

What to do with this

How to read Security Bank's profile as a depositor or analyst.

  • Security Bank's grade reflects capital, profitability, and asset quality, read the four pillars before drawing conclusions. How grades work
  • Compare Security Bank against other Oklahoma banks before moving funds. Oklahoma banks

Not financial advice. Health grades are PlainBankData's interpretation of public FDIC Call Report data, not official FDIC ratings or predictions. Verify the latest figures at the FDIC BankFind Suite.

Every figure on PlainBankData is rendered directly from FDIC federal source data, no number is typed in by an editor. Informational only, not professional advice; consult a qualified professional before acting on it. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Q4 2025.

Disclaimer: Data from the FDIC BankFind Suite. PlainBankData does not rate or rank banks as investment or safety recommendations. Health grades are informational only, computed from public regulatory filings. Always verify current standing directly with FDIC.gov before making financial decisions.