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Side-by-side financial comparison of BWX Technologies, Inc. (BWXT) and Martin Marietta Materials (MLM). Click either name above to swap in a different company.

Martin Marietta Materials is the larger business by last-quarter revenue ($1.1B vs $885.8M, roughly 1.3× BWX Technologies, Inc.). Martin Marietta Materials runs the higher net margin — 24.5% vs 10.5%, a 14.0% gap on every dollar of revenue. On growth, BWX Technologies, Inc. posted the faster year-over-year revenue change (18.7% vs -30.1%). Martin Marietta Materials produced more free cash flow last quarter ($424.0M vs $56.8M). Over the past eight quarters, BWX Technologies, Inc.'s revenue compounded faster (21.1% CAGR vs -4.5%).

BWX Technologies, Inc. is a company headquartered in Lynchburg, Virginia that supplies nuclear components and fuel internationally.

Martin Marietta Materials, Inc. is an American company and a supplier of aggregates and heavy building materials, with operations spanning 26 states, Canada, and the Caribbean. In particular, Martin Marietta Materials supplies resources for the construction of roads, sidewalks, and foundations.

BWXT vs MLM — Head-to-Head

Bigger by revenue
MLM
MLM
1.3× larger
MLM
$1.1B
$885.8M
BWXT
Growing faster (revenue YoY)
BWXT
BWXT
+48.9% gap
BWXT
18.7%
-30.1%
MLM
Higher net margin
MLM
MLM
14.0% more per $
MLM
24.5%
10.5%
BWXT
More free cash flow
MLM
MLM
$367.2M more FCF
MLM
$424.0M
$56.8M
BWXT
Faster 2-yr revenue CAGR
BWXT
BWXT
Annualised
BWXT
21.1%
-4.5%
MLM

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
BWXT
BWXT
MLM
MLM
Revenue
$885.8M
$1.1B
Net Profit
$93.0M
$279.0M
Gross Margin
35.0%
Operating Margin
10.4%
24.6%
Net Margin
10.5%
24.5%
Revenue YoY
18.7%
-30.1%
Net Profit YoY
30.9%
-4.8%
EPS (diluted)
$1.02
$4.59

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
BWXT
BWXT
MLM
MLM
Q4 25
$885.8M
$1.1B
Q3 25
$866.3M
$1.8B
Q2 25
$764.0M
$1.8B
Q1 25
$682.3M
$1.4B
Q4 24
$746.3M
$1.6B
Q3 24
$672.0M
$1.9B
Q2 24
$681.5M
$1.8B
Q1 24
$604.0M
$1.3B
Net Profit
BWXT
BWXT
MLM
MLM
Q4 25
$93.0M
$279.0M
Q3 25
$82.1M
$414.0M
Q2 25
$78.4M
$328.0M
Q1 25
$75.5M
$116.0M
Q4 24
$71.0M
$293.0M
Q3 24
$69.5M
$363.0M
Q2 24
$73.0M
$294.0M
Q1 24
$68.5M
$1.0B
Gross Margin
BWXT
BWXT
MLM
MLM
Q4 25
35.0%
Q3 25
21.8%
33.1%
Q2 25
25.1%
30.0%
Q1 25
24.2%
24.8%
Q4 24
30.0%
Q3 24
24.4%
31.7%
Q2 24
24.7%
29.3%
Q1 24
24.6%
21.7%
Operating Margin
BWXT
BWXT
MLM
MLM
Q4 25
10.4%
24.6%
Q3 25
13.1%
27.4%
Q2 25
13.4%
25.3%
Q1 25
14.2%
14.3%
Q4 24
12.4%
24.4%
Q3 24
14.4%
25.9%
Q2 24
14.5%
22.6%
Q1 24
15.4%
Net Margin
BWXT
BWXT
MLM
MLM
Q4 25
10.5%
24.5%
Q3 25
9.5%
22.4%
Q2 25
10.3%
18.1%
Q1 25
11.1%
8.6%
Q4 24
9.5%
18.0%
Q3 24
10.3%
19.2%
Q2 24
10.7%
16.7%
Q1 24
11.3%
83.5%
EPS (diluted)
BWXT
BWXT
MLM
MLM
Q4 25
$1.02
$4.59
Q3 25
$0.89
$6.85
Q2 25
$0.85
$5.43
Q1 25
$0.82
$1.90
Q4 24
$0.77
$4.87
Q3 24
$0.76
$5.91
Q2 24
$0.79
$4.76
Q1 24
$0.75
$16.87

Balance Sheet & Financial Strength

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

Metric
BWXT
BWXT
MLM
MLM
Cash + ST InvestmentsLiquidity on hand
$499.8M
$67.0M
Total DebtLower is stronger
$5.3B
Stockholders' EquityBook value
$1.2B
$10.0B
Total Assets
$4.3B
$18.7B
Debt / EquityLower = less leverage
0.53×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BWXT
BWXT
MLM
MLM
Q4 25
$499.8M
$67.0M
Q3 25
$79.6M
$57.0M
Q2 25
$37.0M
$225.0M
Q1 25
$55.4M
$101.0M
Q4 24
$74.1M
$670.0M
Q3 24
$35.5M
$52.0M
Q2 24
$48.3M
$109.0M
Q1 24
$45.9M
$2.6B
Total Debt
BWXT
BWXT
MLM
MLM
Q4 25
$5.3B
Q3 25
$5.5B
Q2 25
$5.4B
Q1 25
$5.4B
Q4 24
$5.4B
Q3 24
$4.0B
Q2 24
$4.3B
Q1 24
$4.3B
Stockholders' Equity
BWXT
BWXT
MLM
MLM
Q4 25
$1.2B
$10.0B
Q3 25
$1.2B
$9.7B
Q2 25
$1.2B
$9.4B
Q1 25
$1.1B
$9.1B
Q4 24
$1.1B
$9.5B
Q3 24
$1.1B
$9.2B
Q2 24
$998.5M
$8.8B
Q1 24
$946.2M
$8.9B
Total Assets
BWXT
BWXT
MLM
MLM
Q4 25
$4.3B
$18.7B
Q3 25
$3.8B
$18.7B
Q2 25
$3.7B
$18.1B
Q1 25
$3.1B
$17.7B
Q4 24
$2.9B
$18.2B
Q3 24
$2.9B
$16.5B
Q2 24
$2.8B
$16.3B
Q1 24
$2.8B
$16.2B
Debt / Equity
BWXT
BWXT
MLM
MLM
Q4 25
0.53×
Q3 25
0.57×
Q2 25
0.58×
Q1 25
0.60×
Q4 24
0.57×
Q3 24
0.44×
Q2 24
0.49×
Q1 24
0.49×

Cash Flow & Capital Efficiency

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

Metric
BWXT
BWXT
MLM
MLM
Operating Cash FlowLast quarter
$127.0M
$629.0M
Free Cash FlowOCF − Capex
$56.8M
$424.0M
FCF MarginFCF / Revenue
6.4%
37.2%
Capex IntensityCapex / Revenue
7.9%
18.0%
Cash ConversionOCF / Net Profit
1.37×
2.25×
TTM Free Cash FlowTrailing 4 quarters
$295.3M
$978.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BWXT
BWXT
MLM
MLM
Q4 25
$127.0M
$629.0M
Q3 25
$143.2M
$551.0M
Q2 25
$159.0M
$387.0M
Q1 25
$50.6M
$218.0M
Q4 24
$276.9M
$686.0M
Q3 24
$32.6M
$600.0M
Q2 24
$65.9M
$1.0M
Q1 24
$33.0M
$172.0M
Free Cash Flow
BWXT
BWXT
MLM
MLM
Q4 25
$56.8M
$424.0M
Q3 25
$94.9M
$361.0M
Q2 25
$126.3M
$208.0M
Q1 25
$17.3M
$-15.0M
Q4 24
$224.4M
$453.0M
Q3 24
$-7.7M
$317.0M
Q2 24
$35.5M
$-138.0M
Q1 24
$2.6M
$-28.0M
FCF Margin
BWXT
BWXT
MLM
MLM
Q4 25
6.4%
37.2%
Q3 25
11.0%
19.6%
Q2 25
16.5%
11.5%
Q1 25
2.5%
-1.1%
Q4 24
30.1%
27.8%
Q3 24
-1.1%
16.8%
Q2 24
5.2%
-7.8%
Q1 24
0.4%
-2.2%
Capex Intensity
BWXT
BWXT
MLM
MLM
Q4 25
7.9%
18.0%
Q3 25
5.6%
10.3%
Q2 25
4.3%
9.9%
Q1 25
4.9%
17.2%
Q4 24
7.0%
14.3%
Q3 24
6.0%
15.0%
Q2 24
4.5%
7.9%
Q1 24
5.0%
16.0%
Cash Conversion
BWXT
BWXT
MLM
MLM
Q4 25
1.37×
2.25×
Q3 25
1.74×
1.33×
Q2 25
2.03×
1.18×
Q1 25
0.67×
1.88×
Q4 24
3.90×
2.34×
Q3 24
0.47×
1.65×
Q2 24
0.90×
0.00×
Q1 24
0.48×
0.16×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BWXT
BWXT

Nuclear Component Program$436.4M49%
Nuclear Manufacturing$134.8M15%
Cost Plus Fee$116.1M13%
Uranium And Nuclear Services$103.8M12%
Commercial Operations$49.0M6%
Commercial Operations Segment$33.7M4%
Transferred At Point In Time$1.3M0%

MLM
MLM

Building Materials Business East Group$774.0M68%
Building Materials Business West Group$233.0M20%
Services$88.0M8%
Other$45.0M4%

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