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Side-by-side financial comparison of Koppers Holdings Inc. (KOP) and SPIRE INC (SR). Click either name above to swap in a different company.

SPIRE INC is the larger business by last-quarter revenue ($762.2M vs $432.7M, roughly 1.8× Koppers Holdings Inc.). SPIRE INC runs the higher net margin — 12.5% vs 6.9%, a 5.6% gap on every dollar of revenue. On growth, SPIRE INC posted the faster year-over-year revenue change (13.9% vs -9.3%). Koppers Holdings Inc. produced more free cash flow last quarter ($28.5M vs $-121.8M). Over the past eight quarters, Koppers Holdings Inc.'s revenue compounded faster (-6.7% CAGR vs -17.8%).

Koppers is a global chemical and materials company based in Pittsburgh, Pennsylvania, United States. Its headquarters is an art-deco 1920s skyscraper, the Koppers Tower.

Spire Inc. is a regional public utility holding company based in St. Louis, Missouri, providing natural gas service through its regulated core utility operations while engaging in non-regulated activities that provide business opportunities. Its primary subsidiary Laclede Gas Company is the largest natural gas distribution utility in Missouri, serving approximately 631,000 residential, commercial and industrial customers in the City of St. Louis and ten counties in eastern Missouri. Its corpo...

KOP vs SR — Head-to-Head

Bigger by revenue
SR
SR
1.8× larger
SR
$762.2M
$432.7M
KOP
Growing faster (revenue YoY)
SR
SR
+23.2% gap
SR
13.9%
-9.3%
KOP
Higher net margin
SR
SR
5.6% more per $
SR
12.5%
6.9%
KOP
More free cash flow
KOP
KOP
$150.3M more FCF
KOP
$28.5M
$-121.8M
SR
Faster 2-yr revenue CAGR
KOP
KOP
Annualised
KOP
-6.7%
-17.8%
SR

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
KOP
KOP
SR
SR
Revenue
$432.7M
$762.2M
Net Profit
$29.7M
$95.0M
Gross Margin
25.6%
55.1%
Operating Margin
11.5%
22.8%
Net Margin
6.9%
12.5%
Revenue YoY
-9.3%
13.9%
Net Profit YoY
391.2%
16.9%
EPS (diluted)
$1.44
$1.54

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
KOP
KOP
SR
SR
Q4 25
$432.7M
$762.2M
Q3 25
$485.3M
$334.1M
Q2 25
$504.8M
$421.9M
Q1 25
$456.5M
$1.1B
Q4 24
$477.0M
$669.1M
Q3 24
$554.3M
$293.8M
Q2 24
$563.2M
$414.1M
Q1 24
$497.6M
$1.1B
Net Profit
KOP
KOP
SR
SR
Q4 25
$29.7M
$95.0M
Q3 25
$23.8M
$-39.8M
Q2 25
$16.4M
$20.9M
Q1 25
$-13.9M
$209.3M
Q4 24
$-10.2M
$81.3M
Q3 24
$22.8M
$-25.9M
Q2 24
$26.8M
$-12.6M
Q1 24
$13.0M
$204.3M
Gross Margin
KOP
KOP
SR
SR
Q4 25
25.6%
55.1%
Q3 25
24.1%
Q2 25
22.6%
Q1 25
23.2%
Q4 24
17.5%
55.6%
Q3 24
21.9%
Q2 24
21.6%
Q1 24
19.3%
Operating Margin
KOP
KOP
SR
SR
Q4 25
11.5%
22.8%
Q3 25
10.7%
-0.1%
Q2 25
7.7%
16.4%
Q1 25
5.9%
29.1%
Q4 24
1.3%
22.2%
Q3 24
9.0%
6.7%
Q2 24
10.2%
7.4%
Q1 24
7.0%
26.5%
Net Margin
KOP
KOP
SR
SR
Q4 25
6.9%
12.5%
Q3 25
4.9%
-11.9%
Q2 25
3.2%
5.0%
Q1 25
-3.0%
19.9%
Q4 24
-2.1%
12.2%
Q3 24
4.1%
-8.8%
Q2 24
4.8%
-3.0%
Q1 24
2.6%
18.1%
EPS (diluted)
KOP
KOP
SR
SR
Q4 25
$1.44
$1.54
Q3 25
$1.17
$-0.77
Q2 25
$0.81
$0.29
Q1 25
$-0.68
$3.51
Q4 24
$-0.47
$1.34
Q3 24
$1.09
$-0.63
Q2 24
$1.25
$-0.28
Q1 24
$0.59
$3.58

Balance Sheet & Financial Strength

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

Metric
KOP
KOP
SR
SR
Cash + ST InvestmentsLiquidity on hand
$4.1M
Total DebtLower is stronger
$928.3M
Stockholders' EquityBook value
$574.0M
$3.4B
Total Assets
$1.9B
$11.9B
Debt / EquityLower = less leverage
1.62×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
KOP
KOP
SR
SR
Q4 25
$4.1M
Q3 25
$5.7M
Q2 25
$13.1M
Q1 25
$15.2M
Q4 24
$11.5M
Q3 24
$4.5M
Q2 24
$7.4M
Q1 24
$25.6M
Total Debt
KOP
KOP
SR
SR
Q4 25
$928.3M
Q3 25
$932.9M
Q2 25
$977.5M
Q1 25
$989.0M
Q4 24
$939.5M
Q3 24
$989.4M
Q2 24
$1.0B
Q1 24
$877.6M
Stockholders' Equity
KOP
KOP
SR
SR
Q4 25
$574.0M
$3.4B
Q3 25
$545.6M
$3.4B
Q2 25
$526.8M
$3.5B
Q1 25
$498.0M
$3.5B
Q4 24
$488.7M
$3.3B
Q3 24
$532.3M
$3.2B
Q2 24
$509.2M
$3.3B
Q1 24
$505.8M
$3.4B
Total Assets
KOP
KOP
SR
SR
Q4 25
$1.9B
$11.9B
Q3 25
$1.9B
$11.6B
Q2 25
$1.9B
$11.4B
Q1 25
$1.9B
$11.3B
Q4 24
$1.9B
$11.3B
Q3 24
$2.0B
$10.9B
Q2 24
$1.9B
$10.7B
Q1 24
$1.8B
$10.7B
Debt / Equity
KOP
KOP
SR
SR
Q4 25
1.62×
Q3 25
1.71×
Q2 25
1.86×
Q1 25
1.99×
Q4 24
1.92×
Q3 24
1.86×
Q2 24
1.97×
Q1 24
1.74×

Cash Flow & Capital Efficiency

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

Metric
KOP
KOP
SR
SR
Operating Cash FlowLast quarter
$45.1M
$81.0M
Free Cash FlowOCF − Capex
$28.5M
$-121.8M
FCF MarginFCF / Revenue
6.6%
-16.0%
Capex IntensityCapex / Revenue
3.8%
26.6%
Cash ConversionOCF / Net Profit
1.52×
0.85×
TTM Free Cash FlowTrailing 4 quarters
$67.5M
$-286.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
KOP
KOP
SR
SR
Q4 25
$45.1M
$81.0M
Q3 25
$49.6M
$-4.9M
Q2 25
$50.5M
$129.1M
Q1 25
$-22.7M
$372.7M
Q4 24
$74.7M
$81.1M
Q3 24
$29.8M
$82.9M
Q2 24
$27.2M
$270.1M
Q1 24
$-12.3M
$489.4M
Free Cash Flow
KOP
KOP
SR
SR
Q4 25
$28.5M
$-121.8M
Q3 25
$37.6M
$-227.6M
Q2 25
$38.4M
$-91.4M
Q1 25
$-37.0M
$154.1M
Q4 24
$56.1M
$-179.5M
Q3 24
$14.4M
$-146.9M
Q2 24
$10.1M
$47.9M
Q1 24
$-38.6M
$306.6M
FCF Margin
KOP
KOP
SR
SR
Q4 25
6.6%
-16.0%
Q3 25
7.7%
-68.1%
Q2 25
7.6%
-21.7%
Q1 25
-8.1%
14.7%
Q4 24
11.8%
-26.8%
Q3 24
2.6%
-50.0%
Q2 24
1.8%
11.6%
Q1 24
-7.8%
27.2%
Capex Intensity
KOP
KOP
SR
SR
Q4 25
3.8%
26.6%
Q3 25
2.5%
66.7%
Q2 25
2.4%
52.3%
Q1 25
3.1%
20.8%
Q4 24
3.9%
38.9%
Q3 24
2.8%
78.2%
Q2 24
3.0%
53.7%
Q1 24
5.3%
16.2%
Cash Conversion
KOP
KOP
SR
SR
Q4 25
1.52×
0.85×
Q3 25
2.08×
Q2 25
3.08×
6.18×
Q1 25
1.78×
Q4 24
1.00×
Q3 24
1.31×
Q2 24
1.01×
Q1 24
-0.95×
2.40×

Financial Flow Comparison

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

Revenue Breakdown by Segment

KOP
KOP

Other$127.8M30%
Railroad Treated Products$119.0M28%
Utility Poles$79.8M18%
Pitch And Related Products$74.1M17%
Carbon Black Feedstock And Distillates$14.4M3%
Railroad Infrastructure Products And Services$9.9M2%
Phthalic Anhydride Naphthalene And Other Chemicals$7.7M2%

SR
SR

Residential$474.9M62%
Commercial And Industrial$148.4M19%
Gas Marketing$41.1M5%
Midstream$39.0M5%
Transportation$37.1M5%
Offsystem And Other Inventive$19.7M3%
Other Customer Revenue$4.6M1%

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