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Side-by-side financial comparison of Castellum, Inc. (CTM) and OptimumBank Holdings, Inc. (OPHC). Click either name above to swap in a different company.

OptimumBank Holdings, Inc. is the larger business by last-quarter revenue ($13.6M vs $12.6M, roughly 1.1× Castellum, Inc.). OptimumBank Holdings, Inc. runs the higher net margin — 35.7% vs -10.5%, a 46.2% gap on every dollar of revenue. On growth, OptimumBank Holdings, Inc. posted the faster year-over-year revenue change (32.0% vs 21.9%). Over the past eight quarters, OptimumBank Holdings, Inc.'s revenue compounded faster (23.0% CAGR vs 5.3%).

Castellum, Inc. is a U.S.-based cybersecurity and information technology services provider. It caters to government defense agencies, public sector entities, and commercial enterprise clients, offering threat detection, data protection, cloud security, and managed IT solutions to help organizations mitigate cyber risks and safeguard critical digital infrastructure.

OptimumBank Holdings, Inc. is a Florida-based bank holding company operating the local community bank OptimumBank. It offers retail and commercial banking products including deposit accounts, loans, mortgage services and wealth management, serving individual consumers and small-to-medium enterprises in southern Florida.

CTM vs OPHC — Head-to-Head

Bigger by revenue
OPHC
OPHC
1.1× larger
OPHC
$13.6M
$12.6M
CTM
Growing faster (revenue YoY)
OPHC
OPHC
+10.0% gap
OPHC
32.0%
21.9%
CTM
Higher net margin
OPHC
OPHC
46.2% more per $
OPHC
35.7%
-10.5%
CTM
Faster 2-yr revenue CAGR
OPHC
OPHC
Annualised
OPHC
23.0%
5.3%
CTM

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CTM
CTM
OPHC
OPHC
Revenue
$12.6M
$13.6M
Net Profit
$-1.3M
$4.9M
Gross Margin
33.9%
Operating Margin
-11.1%
47.5%
Net Margin
-10.5%
35.7%
Revenue YoY
21.9%
32.0%
Net Profit YoY
51.8%
22.9%
EPS (diluted)
$-0.02
$-0.08

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
CTM
CTM
OPHC
OPHC
Q4 25
$12.6M
$13.6M
Q3 25
$14.6M
$13.0M
Q2 25
$14.0M
$12.1M
Q1 25
$11.7M
$10.7M
Q4 24
$10.3M
$10.3M
Q3 24
$11.6M
$10.1M
Q2 24
$11.5M
$9.9M
Q1 24
$11.3M
$9.0M
Net Profit
CTM
CTM
OPHC
OPHC
Q4 25
$-1.3M
$4.9M
Q3 25
$415.4K
$4.3M
Q2 25
$-322.1K
$3.6M
Q1 25
$-1.2M
$3.9M
Q4 24
$-2.7M
$3.9M
Q3 24
$-1.3M
$3.3M
Q2 24
$-1.8M
$3.5M
Q1 24
$-4.1M
$2.4M
Gross Margin
CTM
CTM
OPHC
OPHC
Q4 25
33.9%
Q3 25
37.6%
Q2 25
36.1%
Q1 25
39.0%
Q4 24
40.0%
Q3 24
42.7%
Q2 24
40.6%
Q1 24
39.8%
Operating Margin
CTM
CTM
OPHC
OPHC
Q4 25
-11.1%
47.5%
Q3 25
3.0%
43.5%
Q2 25
-2.7%
40.2%
Q1 25
-12.7%
48.8%
Q4 24
-15.7%
51.5%
Q3 24
-11.9%
44.0%
Q2 24
-13.6%
46.9%
Q1 24
-23.6%
35.9%
Net Margin
CTM
CTM
OPHC
OPHC
Q4 25
-10.5%
35.7%
Q3 25
2.8%
33.2%
Q2 25
-2.3%
29.8%
Q1 25
-10.0%
36.3%
Q4 24
-26.6%
38.3%
Q3 24
-11.0%
32.8%
Q2 24
-16.0%
35.2%
Q1 24
-36.3%
26.4%
EPS (diluted)
CTM
CTM
OPHC
OPHC
Q4 25
$-0.02
$-0.08
Q3 25
$0.00
$0.18
Q2 25
$0.00
$0.29
Q1 25
$-0.01
$0.32
Q4 24
$-0.05
$-0.17
Q3 24
$-0.02
$0.15
Q2 24
$-0.03
$0.34
Q1 24
$-0.08
$0.31

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
CTM
CTM
OPHC
OPHC
Cash + ST InvestmentsLiquidity on hand
Total DebtLower is stronger
Stockholders' EquityBook value
$35.8M
$121.9M
Total Assets
$41.9M
$1.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Total Debt
CTM
CTM
OPHC
OPHC
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
$8.0M
Q3 24
$8.3M
Q2 24
$8.7M
Q1 24
$9.0M
Stockholders' Equity
CTM
CTM
OPHC
OPHC
Q4 25
$35.8M
$121.9M
Q3 25
$36.7M
$116.9M
Q2 25
$31.8M
$111.3M
Q1 25
$26.1M
$108.0M
Q4 24
$20.2M
$103.2M
Q3 24
$12.0M
$92.7M
Q2 24
$12.1M
$87.0M
Q1 24
$12.8M
$83.0M
Total Assets
CTM
CTM
OPHC
OPHC
Q4 25
$41.9M
$1.1B
Q3 25
$46.3M
$1.1B
Q2 25
$43.4M
$999.1M
Q1 25
$41.1M
$977.5M
Q4 24
$37.8M
$932.9M
Q3 24
$28.8M
$945.2M
Q2 24
$29.5M
$899.8M
Q1 24
$30.5M
$940.6M
Debt / Equity
CTM
CTM
OPHC
OPHC
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
0.40×
Q3 24
0.69×
Q2 24
0.72×
Q1 24
0.70×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
CTM
CTM
OPHC
OPHC
Operating Cash FlowLast quarter
$-661.7K
$17.8M
Free Cash FlowOCF − Capex
$16.9M
FCF MarginFCF / Revenue
124.6%
Capex IntensityCapex / Revenue
6.6%
Cash ConversionOCF / Net Profit
3.68×
TTM Free Cash FlowTrailing 4 quarters
$27.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CTM
CTM
OPHC
OPHC
Q4 25
$-661.7K
$17.8M
Q3 25
$1.0M
$1.9M
Q2 25
$214.2K
$6.2M
Q1 25
$-2.5M
$3.1M
Q4 24
$-394.4K
$15.6M
Q3 24
$742.2K
$4.0M
Q2 24
$748.6K
$3.1M
Q1 24
$23.7K
$2.5M
Free Cash Flow
CTM
CTM
OPHC
OPHC
Q4 25
$16.9M
Q3 25
$957.0K
$1.9M
Q2 25
$5.9M
Q1 25
$2.9M
Q4 24
$14.6M
Q3 24
$738.9K
$3.9M
Q2 24
$2.7M
Q1 24
$2.3M
FCF Margin
CTM
CTM
OPHC
OPHC
Q4 25
124.6%
Q3 25
6.5%
14.7%
Q2 25
48.5%
Q1 25
26.8%
Q4 24
141.9%
Q3 24
6.4%
38.3%
Q2 24
27.5%
Q1 24
25.4%
Capex Intensity
CTM
CTM
OPHC
OPHC
Q4 25
6.6%
Q3 25
0.3%
0.0%
Q2 25
2.5%
Q1 25
2.7%
Q4 24
0.0%
9.6%
Q3 24
0.0%
1.5%
Q2 24
0.0%
3.6%
Q1 24
0.0%
2.9%
Cash Conversion
CTM
CTM
OPHC
OPHC
Q4 25
3.68×
Q3 25
2.41×
0.44×
Q2 25
1.71×
Q1 25
0.81×
Q4 24
3.95×
Q3 24
1.21×
Q2 24
0.89×
Q1 24
1.07×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

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