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Side-by-side financial comparison of COMPX INTERNATIONAL INC (CIX) and NAPCO SECURITY TECHNOLOGIES, INC (NSSC). Click either name above to swap in a different company.

NAPCO SECURITY TECHNOLOGIES, INC is the larger business by last-quarter revenue ($48.2M vs $37.7M, roughly 1.3× COMPX INTERNATIONAL INC). NAPCO SECURITY TECHNOLOGIES, INC runs the higher net margin — 28.0% vs 12.4%, a 15.6% gap on every dollar of revenue. On growth, NAPCO SECURITY TECHNOLOGIES, INC posted the faster year-over-year revenue change (12.2% vs -1.9%). NAPCO SECURITY TECHNOLOGIES, INC produced more free cash flow last quarter ($14.5M vs $11.4M). Over the past eight quarters, COMPX INTERNATIONAL INC's revenue compounded faster (-0.4% CAGR vs -1.1%).

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.

Napco Security Technologies, Inc. was set up in 1969 and now is based in Amityville, New York. The company focuses on security products, such as electronic locking devices, alarm systems, and building access control systems. The company was formerly known as Napco Security Systems, Inc.

CIX vs NSSC — Head-to-Head

Bigger by revenue
NSSC
NSSC
1.3× larger
NSSC
$48.2M
$37.7M
CIX
Growing faster (revenue YoY)
NSSC
NSSC
+14.1% gap
NSSC
12.2%
-1.9%
CIX
Higher net margin
NSSC
NSSC
15.6% more per $
NSSC
28.0%
12.4%
CIX
More free cash flow
NSSC
NSSC
$3.1M more FCF
NSSC
$14.5M
$11.4M
CIX
Faster 2-yr revenue CAGR
CIX
CIX
Annualised
CIX
-0.4%
-1.1%
NSSC

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
CIX
CIX
NSSC
NSSC
Revenue
$37.7M
$48.2M
Net Profit
$4.7M
$13.5M
Gross Margin
32.1%
58.6%
Operating Margin
15.0%
30.6%
Net Margin
12.4%
28.0%
Revenue YoY
-1.9%
12.2%
Net Profit YoY
3.6%
29.0%
EPS (diluted)
$0.38
$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
NSSC
NSSC
Q4 25
$37.7M
$48.2M
Q3 25
$40.0M
$49.2M
Q2 25
$40.4M
$50.7M
Q1 25
$40.3M
$44.0M
Q4 24
$38.4M
$42.9M
Q3 24
$33.7M
$44.0M
Q2 24
$35.9M
$50.3M
Q1 24
$38.0M
$49.3M
Net Profit
CIX
CIX
NSSC
NSSC
Q4 25
$4.7M
$13.5M
Q3 25
$4.2M
$12.2M
Q2 25
$5.5M
$11.6M
Q1 25
$5.1M
$10.1M
Q4 24
$4.5M
$10.5M
Q3 24
$3.5M
$11.2M
Q2 24
$4.8M
$13.5M
Q1 24
$3.8M
$13.2M
Gross Margin
CIX
CIX
NSSC
NSSC
Q4 25
32.1%
58.6%
Q3 25
27.6%
56.6%
Q2 25
31.9%
52.8%
Q1 25
30.2%
57.2%
Q4 24
28.8%
57.0%
Q3 24
28.1%
55.9%
Q2 24
31.1%
55.3%
Q1 24
25.5%
53.8%
Operating Margin
CIX
CIX
NSSC
NSSC
Q4 25
15.0%
30.6%
Q3 25
11.9%
27.7%
Q2 25
15.7%
23.8%
Q1 25
14.6%
25.4%
Q4 24
12.7%
26.0%
Q3 24
9.9%
26.9%
Q2 24
14.2%
27.7%
Q1 24
9.8%
29.4%
Net Margin
CIX
CIX
NSSC
NSSC
Q4 25
12.4%
28.0%
Q3 25
10.6%
24.7%
Q2 25
13.5%
22.9%
Q1 25
12.7%
23.0%
Q4 24
11.7%
24.4%
Q3 24
10.3%
25.4%
Q2 24
13.5%
26.9%
Q1 24
9.9%
26.8%
EPS (diluted)
CIX
CIX
NSSC
NSSC
Q4 25
$0.38
$0.38
Q3 25
$0.34
$0.34
Q2 25
$0.44
$0.33
Q1 25
$0.42
$0.28
Q4 24
$0.37
$0.28
Q3 24
$0.28
$0.30
Q2 24
$0.39
$0.36
Q1 24
$0.31
$0.36

Balance Sheet & Financial Strength

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

Metric
CIX
CIX
NSSC
NSSC
Cash + ST InvestmentsLiquidity on hand
$54.1M
$115.4M
Total DebtLower is stronger
Stockholders' EquityBook value
$138.6M
$184.8M
Total Assets
$156.2M
$212.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CIX
CIX
NSSC
NSSC
Q4 25
$54.1M
$115.4M
Q3 25
$46.3M
$105.8M
Q2 25
$56.2M
$99.2M
Q1 25
$56.1M
$89.3M
Q4 24
$60.8M
$99.2M
Q3 24
$58.8M
$91.3M
Q2 24
$82.1M
$70.7M
Q1 24
$75.6M
$60.9M
Stockholders' Equity
CIX
CIX
NSSC
NSSC
Q4 25
$138.6M
$184.8M
Q3 25
$137.7M
$176.1M
Q2 25
$149.5M
$168.6M
Q1 25
$147.6M
$161.5M
Q4 24
$146.1M
$174.2M
Q3 24
$145.3M
$178.6M
Q2 24
$170.2M
$178.9M
Q1 24
$168.9M
$168.2M
Total Assets
CIX
CIX
NSSC
NSSC
Q4 25
$156.2M
$212.8M
Q3 25
$153.7M
$206.0M
Q2 25
$164.8M
$198.1M
Q1 25
$162.2M
$190.9M
Q4 24
$163.0M
$202.7M
Q3 24
$160.1M
$209.9M
Q2 24
$185.1M
$207.8M
Q1 24
$181.7M
$194.8M

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
NSSC
NSSC
Operating Cash FlowLast quarter
$12.0M
$15.1M
Free Cash FlowOCF − Capex
$11.4M
$14.5M
FCF MarginFCF / Revenue
30.3%
30.1%
Capex IntensityCapex / Revenue
1.6%
1.2%
Cash ConversionOCF / Net Profit
2.57×
1.12×
TTM Free Cash FlowTrailing 4 quarters
$19.1M
$53.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CIX
CIX
NSSC
NSSC
Q4 25
$12.0M
$15.1M
Q3 25
$6.3M
$11.6M
Q2 25
$4.7M
$14.6M
Q1 25
$-137.0K
$13.4M
Q4 24
$7.3M
$13.5M
Q3 24
$4.1M
$12.0M
Q2 24
$9.8M
$14.3M
Q1 24
$1.7M
$12.3M
Free Cash Flow
CIX
CIX
NSSC
NSSC
Q4 25
$11.4M
$14.5M
Q3 25
$5.3M
$11.4M
Q2 25
$3.4M
$14.4M
Q1 25
$-959.0K
$13.3M
Q4 24
$7.1M
$12.4M
Q3 24
$3.6M
$11.3M
Q2 24
$9.4M
$13.8M
Q1 24
$1.4M
$12.0M
FCF Margin
CIX
CIX
NSSC
NSSC
Q4 25
30.3%
30.1%
Q3 25
13.2%
23.3%
Q2 25
8.4%
28.4%
Q1 25
-2.4%
30.3%
Q4 24
18.5%
28.8%
Q3 24
10.8%
25.8%
Q2 24
26.2%
27.4%
Q1 24
3.6%
24.3%
Capex Intensity
CIX
CIX
NSSC
NSSC
Q4 25
1.6%
1.2%
Q3 25
2.5%
0.4%
Q2 25
3.3%
0.5%
Q1 25
2.0%
0.1%
Q4 24
0.6%
2.6%
Q3 24
1.4%
1.5%
Q2 24
1.2%
1.1%
Q1 24
0.8%
0.7%
Cash Conversion
CIX
CIX
NSSC
NSSC
Q4 25
2.57×
1.12×
Q3 25
1.48×
0.96×
Q2 25
0.87×
1.26×
Q1 25
-0.03×
1.32×
Q4 24
1.62×
1.29×
Q3 24
1.18×
1.08×
Q2 24
2.03×
1.06×
Q1 24
0.45×
0.94×

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%

NSSC
NSSC

Segment breakdown not available.

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