What is the 13F Pro Quality Score for CIX?

13F Pro ranks COMPX INTERNATIONAL INC (CIX) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View CIX's current score at https://13fpro.ai/research/CIX (free sign-up required for the full ranking).

Which hedge funds own the most CIX stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of CIX include DIMENSIONAL FUND ADVISORS, ROYCE & ASSOCIATES, BlackRock,. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/research/CIX as soon as new 13F filings post.

Where does 13F Pro source CIX data?

All COMPX INTERNATIONAL INC fundamentals and ownership data come directly from SEC EDGAR. COMPX INTERNATIONAL INC files with the SEC under CIK 1049606. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is CIX in?

COMPX INTERNATIONAL INC (CIX) is classified in the Industrials sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/industrials.

How often is CIX research updated on 13F Pro?

CIX's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

COMPX INTERNATIONAL INC(CIX)Stock Analysis

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13F Pro Quality Score

55.3/100

Rank #1,165 of 2,879 stocksTOP 50%

View Industrials peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

38.0/100

Profitability

74.7/100

Balance Sheet

91.3/100

Earnings Quality

42.8/100

Free Cash Flow

46.8/100

Institutional Flow

37.5/100

Revenue Scale

22.2/100

Dilution Risk

94.9/100

CIX Stock Analysis & AI Quality Score

AI stock analysis and institutional research for COMPX INTERNATIONAL INC (CIX), a Industrials sector company. 13F Pro's AI-powered ranking engine scores CIX at 55.3/100 on a 32-signal composite quality model, placing it at rank #1,165 of 2,879 stocks — the top half of the AI-ranked universe. CIX scores in the top quartile across balance sheet strength (91.3). Areas of concern include revenue scale (22.2) and institutional flow (37.5), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), COMPX INTERNATIONAL INC reports quarterly revenue of $40.6M, net income of $5.9M, an operating margin of 17.4%. Top institutional holders of CIX by reported 13-F value include DIMENSIONAL FUND ADVISORS, ROYCE & ASSOCIATES, BlackRock,, based on the most recent SEC filings. CIX trades on the NYSE exchange and files with the SEC under CIK 1049606. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate CIX daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for COMPX INTERNATIONAL INC directly from SEC EDGAR. COMPX INTERNATIONAL INC's 13F Pro composite quality score has ranged between 50 and 55 since 2024, currently 55.3 — a stable long-term trajectory across 15 quarterly and live scoring snapshots.

✦

Fun facts about COMPX INTERNATIONAL INC

Quirks, history, and lore behind CIX — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. industrial manufacturer · small-cap · listed on NYSE American · headquartered in Texas.
2
The Numbers
Annual revenue in the range of $100–150 million — not a household name, but quietly profitable, with solid operating margins for its niche.
3
The History
Traces its roots to legacy businesses spun off from Harold Simmons' industrial empire, ultimately becoming an independent public company focused on security and motion-control products.
4
The Secret
Its two main segments — security products and marine/defense components — sound unrelated, but both depend on precision mechanical engineering that most competitors can't easily replicate.
5
The Lore
Its locks, keys, and access hardware secure everything from office furniture to postal vehicles — if you've ever used a U.S. mail truck, you may have touched their work.
6
The Giveaway
Ticker CIX, controlled by the Contran / Harold Simmons family of companies — a tiny Texas industrial that makes the locks nobody thinks about until they can't get in.

▶ Think you know your stocks? Play the Daily Ticker

Revenue

Q1 2026

$40.6M

Net Income

Q1 2026

$5.9M

Free Cash Flow

Q1 2026

$-1.6M

Operating Margin

Q1 2026

17.4%

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

+8.5% YoY

$158.3MFY 2025

FY20 $114.5MFY23 $161.3MFY24 $145.9MFY25 $158.3M

Net Income

+17.4% YoY

$19.5MFY 2025

FY20 $10.3MFY23 $22.6MFY24 $16.6MFY25 $19.5M

Operating Income

+32.8% YoY

$22.6MFY 2025

FY20 $11.8MFY23 $25.4MFY24 $17.0MFY25 $22.6M

EPS (Diluted)

+17.0% YoY

$1.58FY 2025

FY20 $0.83FY23 $1.84FY24 $1.35FY25 $1.58

Total Assets

-4.2% YoY

$156.2MFY 2025

FY20 $184.0MFY23 $187.6MFY24 $163.0MFY25 $156.2M

Op. Cash Flow

-0.3% YoY

$22.9MFY 2025

FY20 $15.5MFY23 $25.8MFY24 $22.9MFY25 $22.9M

Metric	FY 2025	FY 2024	FY 2023	FY 2020	FY 2018	FY 2017
Revenue	$158.3M +8.5%	$145.9M -9.5%	$161.3M +40.8%	$114.5M -3.1%	$118.2M +5.5%	$112.0M
Net Income	$19.5M +17.4%	$16.6M -26.6%	$22.6M +118.9%	$10.3M -32.6%	$15.3M +16.1%	$13.2M
Operating Income	$22.6M +32.8%	$17.0M -33.1%	$25.4M +115.2%	$11.8M -33.7%	$17.8M +16.9%	$15.2M
EPS (Diluted)	$1.58 +17.0%	$1.35 -26.6%	$1.84 +121.7%	$0.83	—	—
Total Assets	$156.2M -4.2%	$163.0M -13.1%	$187.6M +1.9%	$184.0M +10.6%	$166.4M +10.2%	$151.0M
Operating Cash Flow	$22.9M -0.3%	$22.9M -11.1%	$25.8M +66.5%	$15.5M -9.7%	$17.2M +36.4%	$12.6M

AI Insight: CIX Financial Trends

COMPX shows revenue stabilization around $40M after Q3 2024 volatility, but operating cash flow remains erratic with two negative quarters.

• Revenue recovered from $34M in Q3 2024 to stabilize around $40M through most recent quarters.

• Operating income improved from $3M in Q3 2024 to $7M in Q1 2026.

• Net income held steady at $4M-$6M range across all quarters with latest at $6M.

⚠ Operating cash flow turned negative again in Q1 2026 at -$1M after positive $12M in Q4 2025.

⚠ Equity declined from $170M peak in Q2 2024 to $141M in Q1 2026 despite positive earnings.

AI Insight: CIX Ratio Trends

Operating margins hit a two-year high of 17.4% in Q1 2026, while ROIC surged to 20.0%, the strongest quarterly performance on record.

• Operating margin expanded from 15.0% in Q4 2025 to 17.4% in Q1 2026, the highest level since tracking began.

• ROIC jumped from 16.3% to 20.0% quarter-over-quarter, marking the strongest capital efficiency in the dataset.

• ROE climbed to 16.6% in Q1 2026 from 13.5% in Q4 2025, showing accelerating shareholder returns.

⚠ Q3 quarters consistently show margin compression — Q3 2024 at 10.0% and Q3 2025 at 11.9% versus surrounding periods.

⚠ TTM operating margin of 15.0% trails the latest quarterly result of 17.4%, suggesting recent performance may not be sustainable.

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Available Research

13F Pro tracks comprehensive data for COMPX INTERNATIONAL INC including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of CIX

DIMENSIONAL FUND ADVISORS LP
$4.2M179,409 sh
ROYCE & ASSOCIATES LP
$3.9M166,074 sh
BlackRock, Inc.
$2.5M107,504 sh
RENAISSANCE TECHNOLOGIES LLC
$2.5M106,949 sh
VANGUARD CAPITAL MANAGEMENT LLC
$1.8M78,220 sh
GEODE CAPITAL MANAGEMENT, LLC
$808.0K34,585 sh
STATE STREET CORP
$714.8K30,600 sh
BRIDGEWAY CAPITAL MANAGEMENT, LLC
$552.9K23,667 sh
NORTHERN TRUST CORP
$396.8K16,987 sh
VANGUARD FIDUCIARY TRUST CO
$248.6K10,640 sh

Fund	Value	Shares
DIMENSIONAL FUND ADVISORS LP	$4.2M	179,409
ROYCE & ASSOCIATES LP	$3.9M	166,074
BlackRock, Inc.	$2.5M	107,504
RENAISSANCE TECHNOLOGIES LLC	$2.5M	106,949
VANGUARD CAPITAL MANAGEMENT LLC	$1.8M	78,220
GEODE CAPITAL MANAGEMENT, LLC	$808.0K	34,585
STATE STREET CORP	$714.8K	30,600
BRIDGEWAY CAPITAL MANAGEMENT, LLC	$552.9K	23,667
NORTHERN TRUST CORP	$396.8K	16,987
VANGUARD FIDUCIARY TRUST CO	$248.6K	10,640

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Is CIX a good stock to buy?

13F Pro's AI-powered analysis of COMPX INTERNATIONAL INC (CIX) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Industrials sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for CIX are available on the CIX stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own CIX?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling CIX. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of COMPX INTERNATIONAL INC's investment landscape.