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Side-by-side financial comparison of COMPX INTERNATIONAL INC (CIX) and FONAR CORP (FONR). Click either name above to swap in a different company.

COMPX INTERNATIONAL INC is the larger business by last-quarter revenue ($37.7M vs $25.5M, roughly 1.5× FONAR CORP). COMPX INTERNATIONAL INC runs the higher net margin — 12.4% vs 8.0%, a 4.3% gap on every dollar of revenue. On growth, FONAR CORP posted the faster year-over-year revenue change (2.4% vs -1.9%). COMPX INTERNATIONAL INC produced more free cash flow last quarter ($11.4M vs $-227.0K). Over the past eight quarters, FONAR CORP's revenue compounded faster (-0.3% CAGR vs -0.4%).

COMPX International Inc. is a diversified manufacturer of security and control products, including high-performance locking systems, electronic access solutions, ergonomic workstation components, and marine hardware. It primarily serves North American and European markets, catering to commercial, residential, industrial, healthcare, and recreational marine segments.

FONAR Corp is a specialized medical technology firm that designs, manufactures, and distributes innovative MRI systems including upright and open models. It primarily serves U.S. hospitals, diagnostic imaging centers, and healthcare providers, delivering high-precision scanning solutions for clinical diagnostic use.

CIX vs FONR — Head-to-Head

Bigger by revenue
CIX
CIX
1.5× larger
CIX
$37.7M
$25.5M
FONR
Growing faster (revenue YoY)
FONR
FONR
+4.3% gap
FONR
2.4%
-1.9%
CIX
Higher net margin
CIX
CIX
4.3% more per $
CIX
12.4%
8.0%
FONR
More free cash flow
CIX
CIX
$11.7M more FCF
CIX
$11.4M
$-227.0K
FONR
Faster 2-yr revenue CAGR
FONR
FONR
Annualised
FONR
-0.3%
-0.4%
CIX

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
CIX
CIX
FONR
FONR
Revenue
$37.7M
$25.5M
Net Profit
$4.7M
$2.1M
Gross Margin
32.1%
Operating Margin
15.0%
13.5%
Net Margin
12.4%
8.0%
Revenue YoY
-1.9%
2.4%
Net Profit YoY
3.6%
4.7%
EPS (diluted)
$0.38

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
CIX
CIX
FONR
FONR
Q4 25
$37.7M
$25.5M
Q3 25
$40.0M
$26.0M
Q2 25
$40.4M
$27.3M
Q1 25
$40.3M
$27.2M
Q4 24
$38.4M
$24.9M
Q3 24
$33.7M
$25.0M
Q2 24
$35.9M
$25.9M
Q1 24
$38.0M
$25.7M
Net Profit
CIX
CIX
FONR
FONR
Q4 25
$4.7M
$2.1M
Q3 25
$4.2M
$2.3M
Q2 25
$5.5M
$729.3K
Q1 25
$5.1M
$2.5M
Q4 24
$4.5M
$2.0M
Q3 24
$3.5M
$3.1M
Q2 24
$4.8M
$830.4K
Q1 24
$3.8M
$1.9M
Gross Margin
CIX
CIX
FONR
FONR
Q4 25
32.1%
Q3 25
27.6%
Q2 25
31.9%
Q1 25
30.2%
Q4 24
28.8%
Q3 24
28.1%
Q2 24
31.1%
Q1 24
25.5%
Operating Margin
CIX
CIX
FONR
FONR
Q4 25
15.0%
13.5%
Q3 25
11.9%
14.1%
Q2 25
15.7%
5.3%
Q1 25
14.6%
15.2%
Q4 24
12.7%
11.9%
Q3 24
9.9%
21.0%
Q2 24
14.2%
7.4%
Q1 24
9.8%
16.8%
Net Margin
CIX
CIX
FONR
FONR
Q4 25
12.4%
8.0%
Q3 25
10.6%
8.7%
Q2 25
13.5%
2.7%
Q1 25
12.7%
9.2%
Q4 24
11.7%
7.9%
Q3 24
10.3%
12.6%
Q2 24
13.5%
3.2%
Q1 24
9.9%
7.3%
EPS (diluted)
CIX
CIX
FONR
FONR
Q4 25
$0.38
Q3 25
$0.34
Q2 25
$0.44
Q1 25
$0.42
Q4 24
$0.37
Q3 24
$0.28
Q2 24
$0.39
Q1 24
$0.31

Balance Sheet & Financial Strength

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

Metric
CIX
CIX
FONR
FONR
Cash + ST InvestmentsLiquidity on hand
$54.1M
$121.0K
Total DebtLower is stronger
Stockholders' EquityBook value
$138.6M
$176.9M
Total Assets
$156.2M
$217.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CIX
CIX
FONR
FONR
Q4 25
$54.1M
$121.0K
Q3 25
$46.3M
$122.0K
Q2 25
$56.2M
$56.5M
Q1 25
$56.1M
$123.0K
Q4 24
$60.8M
$121.0K
Q3 24
$58.8M
$136.0K
Q2 24
$82.1M
$56.5M
Q1 24
$75.6M
$134.0K
Total Debt
CIX
CIX
FONR
FONR
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
$66.9K
Q1 24
Stockholders' Equity
CIX
CIX
FONR
FONR
Q4 25
$138.6M
$176.9M
Q3 25
$137.7M
$174.9M
Q2 25
$149.5M
$172.6M
Q1 25
$147.6M
$171.9M
Q4 24
$146.1M
$169.8M
Q3 24
$145.3M
$168.7M
Q2 24
$170.2M
$166.0M
Q1 24
$168.9M
$165.8M
Total Assets
CIX
CIX
FONR
FONR
Q4 25
$156.2M
$217.2M
Q3 25
$153.7M
$218.4M
Q2 25
$164.8M
$216.9M
Q1 25
$162.2M
$214.9M
Q4 24
$163.0M
$208.0M
Q3 24
$160.1M
$212.3M
Q2 24
$185.1M
$214.2M
Q1 24
$181.7M
$209.6M
Debt / Equity
CIX
CIX
FONR
FONR
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
0.00×
Q1 24

Cash Flow & Capital Efficiency

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

Metric
CIX
CIX
FONR
FONR
Operating Cash FlowLast quarter
$12.0M
$171.0K
Free Cash FlowOCF − Capex
$11.4M
$-227.0K
FCF MarginFCF / Revenue
30.3%
-0.9%
Capex IntensityCapex / Revenue
1.6%
1.6%
Cash ConversionOCF / Net Profit
2.57×
0.08×
TTM Free Cash FlowTrailing 4 quarters
$19.1M
$5.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CIX
CIX
FONR
FONR
Q4 25
$12.0M
$171.0K
Q3 25
$6.3M
$1.7M
Q2 25
$4.7M
$4.2M
Q1 25
$-137.0K
$3.1M
Q4 24
$7.3M
$2.2M
Q3 24
$4.1M
$1.7M
Q2 24
$9.8M
$4.6M
Q1 24
$1.7M
$2.8M
Free Cash Flow
CIX
CIX
FONR
FONR
Q4 25
$11.4M
$-227.0K
Q3 25
$5.3M
$-177.0K
Q2 25
$3.4M
$3.6M
Q1 25
$-959.0K
$2.6M
Q4 24
$7.1M
$1.5M
Q3 24
$3.6M
$-148.0K
Q2 24
$9.4M
$4.2M
Q1 24
$1.4M
$2.6M
FCF Margin
CIX
CIX
FONR
FONR
Q4 25
30.3%
-0.9%
Q3 25
13.2%
-0.7%
Q2 25
8.4%
13.1%
Q1 25
-2.4%
9.4%
Q4 24
18.5%
6.0%
Q3 24
10.8%
-0.6%
Q2 24
26.2%
16.1%
Q1 24
3.6%
10.2%
Capex Intensity
CIX
CIX
FONR
FONR
Q4 25
1.6%
1.6%
Q3 25
2.5%
7.2%
Q2 25
3.3%
2.4%
Q1 25
2.0%
2.2%
Q4 24
0.6%
3.0%
Q3 24
1.4%
7.2%
Q2 24
1.2%
1.6%
Q1 24
0.8%
0.7%
Cash Conversion
CIX
CIX
FONR
FONR
Q4 25
2.57×
0.08×
Q3 25
1.48×
0.75×
Q2 25
0.87×
5.79×
Q1 25
-0.03×
1.26×
Q4 24
1.62×
1.14×
Q3 24
1.18×
0.53×
Q2 24
2.03×
5.54×
Q1 24
0.45×
1.50×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CIX
CIX

Security Products$29.5M78%
Marine Components$8.2M22%

FONR
FONR

Managementof Diagnostic Imaging Centers$23.2M91%
Manufacturingand Servicingof Medical Equipment$2.4M9%

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