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Side-by-side financial comparison of CORE MOLDING TECHNOLOGIES INC (CMT) and CASTLE BIOSCIENCES INC (CSTL). Click either name above to swap in a different company.

CASTLE BIOSCIENCES INC is the larger business by last-quarter revenue ($87.0M vs $74.7M, roughly 1.2× CORE MOLDING TECHNOLOGIES INC). On growth, CORE MOLDING TECHNOLOGIES INC posted the faster year-over-year revenue change (19.5% vs 0.8%). CASTLE BIOSCIENCES INC produced more free cash flow last quarter ($19.7M vs $-2.9M). Over the past eight quarters, CASTLE BIOSCIENCES INC's revenue compounded faster (9.2% CAGR vs -2.2%).

Core Molding Technologies, Inc. was founded in 1988 and now based in Columbus, Ohio. The company manufactures sheet molding compounds (SMC), and molds fiberglass reinforced plastics. It occupies over 1,000,000 square feet of manufacturing space and its main subsidiaries are in Matamoros, Mexico, Gaffney, South Carolina, and Cincinnati, Ohio. In 2011, Core Molding Technologies formed Core Specialty Composites, LLC.

Castle Biosciences Inc. is a commercial-stage diagnostic firm that develops and markets proprietary, clinically actionable tests for dermatological conditions such as melanoma and other skin cancers, plus rare diseases. It operates mainly in the U.S. healthcare market, focusing on segments with high unmet need for more accurate diagnostics to guide treatment choices.

CMT vs CSTL — Head-to-Head

Bigger by revenue
CSTL
CSTL
1.2× larger
CSTL
$87.0M
$74.7M
CMT
Growing faster (revenue YoY)
CMT
CMT
+18.7% gap
CMT
19.5%
0.8%
CSTL
More free cash flow
CSTL
CSTL
$22.7M more FCF
CSTL
$19.7M
$-2.9M
CMT
Faster 2-yr revenue CAGR
CSTL
CSTL
Annualised
CSTL
9.2%
-2.2%
CMT

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CMT
CMT
CSTL
CSTL
Revenue
$74.7M
$87.0M
Net Profit
Gross Margin
15.2%
79.0%
Operating Margin
4.8%
-4.4%
Net Margin
Revenue YoY
19.5%
0.8%
Net Profit YoY
EPS (diluted)
$0.35
$-0.06

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
CMT
CMT
CSTL
CSTL
Q4 25
$74.7M
$87.0M
Q3 25
$58.4M
$83.0M
Q2 25
$79.2M
$86.2M
Q1 25
$61.4M
$88.0M
Q4 24
$62.5M
$86.3M
Q3 24
$73.0M
$85.8M
Q2 24
$88.7M
$87.0M
Q1 24
$78.1M
$73.0M
Net Profit
CMT
CMT
CSTL
CSTL
Q4 25
Q3 25
$1.9M
$-501.0K
Q2 25
$4.1M
$4.5M
Q1 25
$2.2M
$-25.8M
Q4 24
Q3 24
$3.2M
$2.3M
Q2 24
$6.4M
$8.9M
Q1 24
$3.8M
$-2.5M
Gross Margin
CMT
CMT
CSTL
CSTL
Q4 25
15.2%
79.0%
Q3 25
17.4%
77.5%
Q2 25
18.1%
79.5%
Q1 25
19.2%
81.4%
Q4 24
15.8%
81.3%
Q3 24
16.9%
81.8%
Q2 24
20.0%
83.3%
Q1 24
17.0%
81.0%
Operating Margin
CMT
CMT
CSTL
CSTL
Q4 25
4.8%
-4.4%
Q3 25
4.4%
-8.2%
Q2 25
6.6%
-4.9%
Q1 25
4.6%
-31.7%
Q4 24
1.4%
4.7%
Q3 24
4.9%
5.9%
Q2 24
8.4%
5.8%
Q1 24
6.1%
-7.5%
Net Margin
CMT
CMT
CSTL
CSTL
Q4 25
Q3 25
3.2%
-0.6%
Q2 25
5.1%
5.2%
Q1 25
3.6%
-29.4%
Q4 24
Q3 24
4.3%
2.6%
Q2 24
7.2%
10.3%
Q1 24
4.8%
-3.5%
EPS (diluted)
CMT
CMT
CSTL
CSTL
Q4 25
$0.35
$-0.06
Q3 25
$0.22
$-0.02
Q2 25
$0.47
$0.15
Q1 25
$0.25
$-0.90
Q4 24
$-0.01
$0.32
Q3 24
$0.36
$0.08
Q2 24
$0.73
$0.31
Q1 24
$0.43
$-0.09

Balance Sheet & Financial Strength

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

Metric
CMT
CMT
CSTL
CSTL
Cash + ST InvestmentsLiquidity on hand
$38.1M
$299.5M
Total DebtLower is stronger
$17.6M
$10.1M
Stockholders' EquityBook value
$158.2M
$470.9M
Total Assets
$228.1M
$578.6M
Debt / EquityLower = less leverage
0.11×
0.02×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CMT
CMT
CSTL
CSTL
Q4 25
$38.1M
$299.5M
Q3 25
$42.4M
$287.5M
Q2 25
$43.2M
$275.9M
Q1 25
$44.5M
$275.2M
Q4 24
$41.8M
$293.1M
Q3 24
$42.3M
$95.0M
Q2 24
$37.8M
$85.6M
Q1 24
$26.6M
$82.9M
Total Debt
CMT
CMT
CSTL
CSTL
Q4 25
$17.6M
$10.1M
Q3 25
$18.2M
$10.0M
Q2 25
$18.8M
$10.0M
Q1 25
$19.2M
$10.0M
Q4 24
$19.7M
$10.0M
Q3 24
$20.2M
$10.0M
Q2 24
$20.6M
$10.0M
Q1 24
$21.1M
$10.0M
Stockholders' Equity
CMT
CMT
CSTL
CSTL
Q4 25
$158.2M
$470.9M
Q3 25
$155.4M
$467.0M
Q2 25
$153.5M
$455.4M
Q1 25
$149.9M
$440.3M
Q4 24
$147.4M
$455.8M
Q3 24
$147.8M
$441.1M
Q2 24
$147.5M
$423.9M
Q1 24
$142.8M
$402.5M
Total Assets
CMT
CMT
CSTL
CSTL
Q4 25
$228.1M
$578.6M
Q3 25
$219.7M
$562.8M
Q2 25
$219.9M
$544.7M
Q1 25
$223.6M
$501.7M
Q4 24
$209.6M
$531.2M
Q3 24
$220.7M
$514.6M
Q2 24
$225.7M
$487.3M
Q1 24
$212.3M
$458.5M
Debt / Equity
CMT
CMT
CSTL
CSTL
Q4 25
0.11×
0.02×
Q3 25
0.12×
0.02×
Q2 25
0.12×
0.02×
Q1 25
0.13×
0.02×
Q4 24
0.13×
0.02×
Q3 24
0.14×
0.02×
Q2 24
0.14×
0.02×
Q1 24
0.15×
0.02×

Cash Flow & Capital Efficiency

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

Metric
CMT
CMT
CSTL
CSTL
Operating Cash FlowLast quarter
$5.0M
$26.9M
Free Cash FlowOCF − Capex
$-2.9M
$19.7M
FCF MarginFCF / Revenue
-3.9%
22.7%
Capex IntensityCapex / Revenue
10.7%
8.3%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$1.9M
$28.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CMT
CMT
CSTL
CSTL
Q4 25
$5.0M
$26.9M
Q3 25
$4.6M
$22.6M
Q2 25
$3.5M
$20.8M
Q1 25
$6.1M
$-6.0M
Q4 24
$5.0M
$24.4M
Q3 24
$9.2M
$23.3M
Q2 24
$15.9M
$24.0M
Q1 24
$5.1M
$-6.8M
Free Cash Flow
CMT
CMT
CSTL
CSTL
Q4 25
$-2.9M
$19.7M
Q3 25
$-346.0K
$7.8M
Q2 25
$880.0K
$11.6M
Q1 25
$4.3M
$-10.8M
Q4 24
$509.0K
$16.8M
Q3 24
$7.0M
$17.0M
Q2 24
$13.0M
$18.8M
Q1 24
$3.2M
$-16.0M
FCF Margin
CMT
CMT
CSTL
CSTL
Q4 25
-3.9%
22.7%
Q3 25
-0.6%
9.4%
Q2 25
1.1%
13.4%
Q1 25
7.0%
-12.2%
Q4 24
0.8%
19.5%
Q3 24
9.6%
19.8%
Q2 24
14.6%
21.6%
Q1 24
4.1%
-21.9%
Capex Intensity
CMT
CMT
CSTL
CSTL
Q4 25
10.7%
8.3%
Q3 25
8.4%
17.9%
Q2 25
3.3%
10.7%
Q1 25
2.9%
5.4%
Q4 24
7.2%
8.8%
Q3 24
3.1%
7.4%
Q2 24
3.3%
6.0%
Q1 24
2.4%
12.5%
Cash Conversion
CMT
CMT
CSTL
CSTL
Q4 25
Q3 25
2.44×
Q2 25
0.86×
4.60×
Q1 25
2.79×
Q4 24
Q3 24
2.92×
10.29×
Q2 24
2.47×
2.69×
Q1 24
1.35×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CMT
CMT

Segment breakdown not available.

CSTL
CSTL

Dermatologic$48.6M56%
Non Dermatologic$38.4M44%

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