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Side-by-side financial comparison of Martin Marietta Materials (MLM) and SELECTIVE INSURANCE GROUP INC (SIGI). Click either name above to swap in a different company.

SELECTIVE INSURANCE GROUP INC is the larger business by last-quarter revenue ($1.4B vs $1.1B, roughly 1.2× Martin Marietta Materials). Martin Marietta Materials runs the higher net margin — 24.5% vs 7.2%, a 17.3% gap on every dollar of revenue. On growth, SELECTIVE INSURANCE GROUP INC posted the faster year-over-year revenue change (5.7% vs -30.1%). Over the past eight quarters, SELECTIVE INSURANCE GROUP INC's revenue compounded faster (6.6% CAGR vs -4.5%).

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.

Selective Insurance Group Inc. is a U.S.-based insurance holding company that provides a comprehensive portfolio of property and casualty insurance products, including personal auto, home insurance, commercial property, liability, and workers' compensation coverage. It primarily serves small and medium-sized businesses, individual consumers, and nonprofits across the U.S., distributing offerings via a network of independent insurance agents.

MLM vs SIGI — Head-to-Head

Bigger by revenue
SIGI
SIGI
1.2× larger
SIGI
$1.4B
$1.1B
MLM
Growing faster (revenue YoY)
SIGI
SIGI
+35.9% gap
SIGI
5.7%
-30.1%
MLM
Higher net margin
MLM
MLM
17.3% more per $
MLM
24.5%
7.2%
SIGI
Faster 2-yr revenue CAGR
SIGI
SIGI
Annualised
SIGI
6.6%
-4.5%
MLM

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
MLM
MLM
SIGI
SIGI
Revenue
$1.1B
$1.4B
Net Profit
$279.0M
$97.7M
Gross Margin
35.0%
Operating Margin
24.6%
Net Margin
24.5%
7.2%
Revenue YoY
-30.1%
5.7%
Net Profit YoY
-4.8%
EPS (diluted)
$4.59
$1.58

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
MLM
MLM
SIGI
SIGI
Q1 26
$1.4B
Q4 25
$1.1B
$1.4B
Q3 25
$1.8B
$1.4B
Q2 25
$1.8B
$1.3B
Q1 25
$1.4B
$1.3B
Q4 24
$1.6B
$1.3B
Q3 24
$1.9B
$1.2B
Q2 24
$1.8B
$1.2B
Net Profit
MLM
MLM
SIGI
SIGI
Q1 26
$97.7M
Q4 25
$279.0M
$155.2M
Q3 25
$414.0M
$115.3M
Q2 25
$328.0M
$85.9M
Q1 25
$116.0M
$109.9M
Q4 24
$293.0M
$95.5M
Q3 24
$363.0M
$92.3M
Q2 24
$294.0M
$-63.3M
Gross Margin
MLM
MLM
SIGI
SIGI
Q1 26
Q4 25
35.0%
Q3 25
33.1%
Q2 25
30.0%
Q1 25
24.8%
Q4 24
30.0%
Q3 24
31.7%
Q2 24
29.3%
Operating Margin
MLM
MLM
SIGI
SIGI
Q1 26
Q4 25
24.6%
14.4%
Q3 25
27.4%
10.7%
Q2 25
25.3%
8.2%
Q1 25
14.3%
10.8%
Q4 24
24.4%
9.5%
Q3 24
25.9%
9.4%
Q2 24
22.6%
-6.7%
Net Margin
MLM
MLM
SIGI
SIGI
Q1 26
7.2%
Q4 25
24.5%
11.4%
Q3 25
22.4%
8.5%
Q2 25
18.1%
6.5%
Q1 25
8.6%
8.6%
Q4 24
18.0%
7.6%
Q3 24
19.2%
7.4%
Q2 24
16.7%
-5.3%
EPS (diluted)
MLM
MLM
SIGI
SIGI
Q1 26
$1.58
Q4 25
$4.59
$2.52
Q3 25
$6.85
$1.85
Q2 25
$5.43
$1.36
Q1 25
$1.90
$1.76
Q4 24
$4.87
$1.53
Q3 24
$5.91
$1.47
Q2 24
$4.76
$-1.08

Balance Sheet & Financial Strength

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

Metric
MLM
MLM
SIGI
SIGI
Cash + ST InvestmentsLiquidity on hand
$67.0M
$451.8M
Total DebtLower is stronger
$5.3B
$901.4M
Stockholders' EquityBook value
$10.0B
$3.6B
Total Assets
$18.7B
$15.3B
Debt / EquityLower = less leverage
0.53×
0.25×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MLM
MLM
SIGI
SIGI
Q1 26
$451.8M
Q4 25
$67.0M
Q3 25
$57.0M
Q2 25
$225.0M
Q1 25
$101.0M
Q4 24
$670.0M
Q3 24
$52.0M
Q2 24
$109.0M
Total Debt
MLM
MLM
SIGI
SIGI
Q1 26
$901.4M
Q4 25
$5.3B
Q3 25
$5.5B
Q2 25
$5.4B
Q1 25
$5.4B
Q4 24
$5.4B
$507.9M
Q3 24
$4.0B
$508.2M
Q2 24
$4.3B
$508.8M
Stockholders' Equity
MLM
MLM
SIGI
SIGI
Q1 26
$3.6B
Q4 25
$10.0B
$3.6B
Q3 25
$9.7B
$3.5B
Q2 25
$9.4B
$3.4B
Q1 25
$9.1B
$3.3B
Q4 24
$9.5B
$3.1B
Q3 24
$9.2B
$3.2B
Q2 24
$8.8B
$2.9B
Total Assets
MLM
MLM
SIGI
SIGI
Q1 26
$15.3B
Q4 25
$18.7B
$15.2B
Q3 25
$18.7B
$15.0B
Q2 25
$18.1B
$14.5B
Q1 25
$17.7B
$14.2B
Q4 24
$18.2B
$13.5B
Q3 24
$16.5B
$13.5B
Q2 24
$16.3B
$12.6B
Debt / Equity
MLM
MLM
SIGI
SIGI
Q1 26
0.25×
Q4 25
0.53×
Q3 25
0.57×
Q2 25
0.58×
Q1 25
0.60×
Q4 24
0.57×
0.16×
Q3 24
0.44×
0.16×
Q2 24
0.49×
0.17×

Cash Flow & Capital Efficiency

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

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

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MLM
MLM
SIGI
SIGI
Q1 26
Q4 25
$629.0M
$376.3M
Q3 25
$551.0M
$405.8M
Q2 25
$387.0M
$166.9M
Q1 25
$218.0M
$284.0M
Q4 24
$686.0M
$332.2M
Q3 24
$600.0M
$387.4M
Q2 24
$1.0M
$266.1M
Free Cash Flow
MLM
MLM
SIGI
SIGI
Q1 26
Q4 25
$424.0M
$366.3M
Q3 25
$361.0M
$397.3M
Q2 25
$208.0M
$159.7M
Q1 25
$-15.0M
$271.0M
Q4 24
$453.0M
$324.7M
Q3 24
$317.0M
$378.0M
Q2 24
$-138.0M
$258.4M
FCF Margin
MLM
MLM
SIGI
SIGI
Q1 26
Q4 25
37.2%
26.8%
Q3 25
19.6%
29.2%
Q2 25
11.5%
12.0%
Q1 25
-1.1%
21.1%
Q4 24
27.8%
25.8%
Q3 24
16.8%
30.4%
Q2 24
-7.8%
21.6%
Capex Intensity
MLM
MLM
SIGI
SIGI
Q1 26
Q4 25
18.0%
0.7%
Q3 25
10.3%
0.6%
Q2 25
9.9%
0.5%
Q1 25
17.2%
1.0%
Q4 24
14.3%
0.6%
Q3 24
15.0%
0.8%
Q2 24
7.9%
0.6%
Cash Conversion
MLM
MLM
SIGI
SIGI
Q1 26
Q4 25
2.25×
2.42×
Q3 25
1.33×
3.52×
Q2 25
1.18×
1.94×
Q1 25
1.88×
2.58×
Q4 24
2.34×
3.48×
Q3 24
1.65×
4.20×
Q2 24
0.00×

Financial Flow Comparison

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

Revenue Breakdown by Segment

MLM
MLM

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

SIGI
SIGI

Segment breakdown not available.

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