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Side-by-side financial comparison of DMC Global Inc. (BOOM) and CASTLE BIOSCIENCES INC (CSTL). Click either name above to swap in a different company.

DMC Global Inc. is the larger business by last-quarter revenue ($143.5M vs $87.0M, roughly 1.6× CASTLE BIOSCIENCES INC). On growth, CASTLE BIOSCIENCES INC posted the faster year-over-year revenue change (0.8% vs -5.8%). CASTLE BIOSCIENCES INC produced more free cash flow last quarter ($19.7M vs $9.6M). Over the past eight quarters, CASTLE BIOSCIENCES INC's revenue compounded faster (9.2% CAGR vs -7.3%).

DMC Mining Services is a mining services contractor founded in 1980 operating in Canada, the United States, Chile, and Mongolia

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.

BOOM vs CSTL — Head-to-Head

Bigger by revenue
BOOM
BOOM
1.6× larger
BOOM
$143.5M
$87.0M
CSTL
Growing faster (revenue YoY)
CSTL
CSTL
+6.6% gap
CSTL
0.8%
-5.8%
BOOM
More free cash flow
CSTL
CSTL
$10.1M more FCF
CSTL
$19.7M
$9.6M
BOOM
Faster 2-yr revenue CAGR
CSTL
CSTL
Annualised
CSTL
9.2%
-7.3%
BOOM

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
BOOM
BOOM
CSTL
CSTL
Revenue
$143.5M
$87.0M
Net Profit
$-11.2M
Gross Margin
17.1%
79.0%
Operating Margin
-7.8%
-4.4%
Net Margin
-7.8%
Revenue YoY
-5.8%
0.8%
Net Profit YoY
-3871.6%
EPS (diluted)
$-0.60
$-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
BOOM
BOOM
CSTL
CSTL
Q4 25
$143.5M
$87.0M
Q3 25
$151.5M
$83.0M
Q2 25
$155.5M
$86.2M
Q1 25
$159.3M
$88.0M
Q4 24
$152.4M
$86.3M
Q3 24
$152.4M
$85.8M
Q2 24
$171.2M
$87.0M
Q1 24
$166.9M
$73.0M
Net Profit
BOOM
BOOM
CSTL
CSTL
Q4 25
$-11.2M
Q3 25
$-3.1M
$-501.0K
Q2 25
$116.0K
$4.5M
Q1 25
$677.0K
$-25.8M
Q4 24
$296.0K
Q3 24
$-101.3M
$2.3M
Q2 24
$4.0M
$8.9M
Q1 24
$2.6M
$-2.5M
Gross Margin
BOOM
BOOM
CSTL
CSTL
Q4 25
17.1%
79.0%
Q3 25
21.7%
77.5%
Q2 25
23.6%
79.5%
Q1 25
25.9%
81.4%
Q4 24
20.8%
81.3%
Q3 24
19.8%
81.8%
Q2 24
27.1%
83.3%
Q1 24
25.4%
81.0%
Operating Margin
BOOM
BOOM
CSTL
CSTL
Q4 25
-7.8%
-4.4%
Q3 25
0.4%
-8.2%
Q2 25
2.5%
-4.9%
Q1 25
4.1%
-31.7%
Q4 24
-0.5%
4.7%
Q3 24
-97.7%
5.9%
Q2 24
6.8%
5.8%
Q1 24
4.0%
-7.5%
Net Margin
BOOM
BOOM
CSTL
CSTL
Q4 25
-7.8%
Q3 25
-2.0%
-0.6%
Q2 25
0.1%
5.2%
Q1 25
0.4%
-29.4%
Q4 24
0.2%
Q3 24
-66.5%
2.6%
Q2 24
2.3%
10.3%
Q1 24
1.5%
-3.5%
EPS (diluted)
BOOM
BOOM
CSTL
CSTL
Q4 25
$-0.60
$-0.06
Q3 25
$-0.10
$-0.02
Q2 25
$-0.24
$0.15
Q1 25
$0.04
$-0.90
Q4 24
$-0.18
$0.32
Q3 24
$-8.27
$0.08
Q2 24
$0.24
$0.31
Q1 24
$0.01
$-0.09

Balance Sheet & Financial Strength

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

Metric
BOOM
BOOM
CSTL
CSTL
Cash + ST InvestmentsLiquidity on hand
$31.9M
$299.5M
Total DebtLower is stronger
$50.6M
$10.1M
Stockholders' EquityBook value
$242.1M
$470.9M
Total Assets
$635.8M
$578.6M
Debt / EquityLower = less leverage
0.21×
0.02×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BOOM
BOOM
CSTL
CSTL
Q4 25
$31.9M
$299.5M
Q3 25
$26.4M
$287.5M
Q2 25
$12.4M
$275.9M
Q1 25
$14.7M
$275.2M
Q4 24
$14.3M
$293.1M
Q3 24
$14.5M
$95.0M
Q2 24
$14.6M
$85.6M
Q1 24
$20.4M
$82.9M
Total Debt
BOOM
BOOM
CSTL
CSTL
Q4 25
$50.6M
$10.1M
Q3 25
$56.5M
$10.0M
Q2 25
$58.7M
$10.0M
Q1 25
$72.4M
$10.0M
Q4 24
$70.8M
$10.0M
Q3 24
$74.2M
$10.0M
Q2 24
$84.1M
$10.0M
Q1 24
$88.0M
$10.0M
Stockholders' Equity
BOOM
BOOM
CSTL
CSTL
Q4 25
$242.1M
$470.9M
Q3 25
$253.0M
$467.0M
Q2 25
$253.9M
$455.4M
Q1 25
$253.9M
$440.3M
Q4 24
$251.0M
$455.8M
Q3 24
$256.5M
$441.1M
Q2 24
$416.0M
$423.9M
Q1 24
$409.9M
$402.5M
Total Assets
BOOM
BOOM
CSTL
CSTL
Q4 25
$635.8M
$578.6M
Q3 25
$644.1M
$562.8M
Q2 25
$645.0M
$544.7M
Q1 25
$670.6M
$501.7M
Q4 24
$671.3M
$531.2M
Q3 24
$702.0M
$514.6M
Q2 24
$869.5M
$487.3M
Q1 24
$860.0M
$458.5M
Debt / Equity
BOOM
BOOM
CSTL
CSTL
Q4 25
0.21×
0.02×
Q3 25
0.22×
0.02×
Q2 25
0.23×
0.02×
Q1 25
0.29×
0.02×
Q4 24
0.28×
0.02×
Q3 24
0.29×
0.02×
Q2 24
0.20×
0.02×
Q1 24
0.21×
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
BOOM
BOOM
CSTL
CSTL
Operating Cash FlowLast quarter
$15.2M
$26.9M
Free Cash FlowOCF − Capex
$9.6M
$19.7M
FCF MarginFCF / Revenue
6.7%
22.7%
Capex IntensityCapex / Revenue
3.9%
8.3%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$37.0M
$28.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BOOM
BOOM
CSTL
CSTL
Q4 25
$15.2M
$26.9M
Q3 25
$18.6M
$22.6M
Q2 25
$15.2M
$20.8M
Q1 25
$4.5M
$-6.0M
Q4 24
$11.8M
$24.4M
Q3 24
$19.0M
$23.3M
Q2 24
$2.3M
$24.0M
Q1 24
$13.4M
$-6.8M
Free Cash Flow
BOOM
BOOM
CSTL
CSTL
Q4 25
$9.6M
$19.7M
Q3 25
$14.4M
$7.8M
Q2 25
$12.3M
$11.6M
Q1 25
$709.0K
$-10.8M
Q4 24
$6.1M
$16.8M
Q3 24
$12.9M
$17.0M
Q2 24
$-204.0K
$18.8M
Q1 24
$10.5M
$-16.0M
FCF Margin
BOOM
BOOM
CSTL
CSTL
Q4 25
6.7%
22.7%
Q3 25
9.5%
9.4%
Q2 25
7.9%
13.4%
Q1 25
0.4%
-12.2%
Q4 24
4.0%
19.5%
Q3 24
8.5%
19.8%
Q2 24
-0.1%
21.6%
Q1 24
6.3%
-21.9%
Capex Intensity
BOOM
BOOM
CSTL
CSTL
Q4 25
3.9%
8.3%
Q3 25
2.8%
17.9%
Q2 25
1.9%
10.7%
Q1 25
2.4%
5.4%
Q4 24
3.7%
8.8%
Q3 24
4.0%
7.4%
Q2 24
1.5%
6.0%
Q1 24
1.8%
12.5%
Cash Conversion
BOOM
BOOM
CSTL
CSTL
Q4 25
Q3 25
Q2 25
131.43×
4.60×
Q1 25
6.63×
Q4 24
39.90×
Q3 24
10.29×
Q2 24
0.58×
2.69×
Q1 24
5.24×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BOOM
BOOM

Dyna Energetics Segment$68.9M48%
Other$57.0M40%
Nobel Clad Segment$17.7M12%

CSTL
CSTL

Dermatologic$48.6M56%
Non Dermatologic$38.4M44%

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