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Side-by-side financial comparison of Norfolk Southern (NSC) and Zoetis (ZTS). Click either name above to swap in a different company.

Norfolk Southern is the larger business by last-quarter revenue ($3.0B vs $2.4B, roughly 1.2× Zoetis). Zoetis runs the higher net margin — 25.3% vs 21.7%, a 3.6% gap on every dollar of revenue. On growth, Zoetis posted the faster year-over-year revenue change (3.0% vs -1.7%). Zoetis produced more free cash flow last quarter ($732.0M vs $334.0M). Over the past eight quarters, Zoetis's revenue compounded faster (4.4% CAGR vs -0.5%).

The Norfolk Southern Railway is a Class I freight railroad operating in the Eastern United States. Headquartered in Atlanta, the company was formed in 1982 with the merger of the Norfolk and Western Railway and Southern Railway. The company operates 19,420 route miles (31,250 km) in 22 eastern states and the District of Columbia, and has rights in Canada over the Albany to Montreal route of the Canadian Pacific Kansas City.

Zoetis Inc. (/zō-EH-tis/) is an American drug company, the world's largest producer of medicine and vaccinations for pets and livestock. The company was a subsidiary of Pfizer, the world's largest drug maker, but with Pfizer's spinoff of its 83% interest in the firm it is now a completely independent company. The company directly markets its products in approximately 45 countries, and sells them in more than 100 countries. Operations outside the United States accounted for 50% of the total re...

NSC vs ZTS — Head-to-Head

Bigger by revenue
NSC
NSC
1.2× larger
NSC
$3.0B
$2.4B
ZTS
Growing faster (revenue YoY)
ZTS
ZTS
+4.7% gap
ZTS
3.0%
-1.7%
NSC
Higher net margin
ZTS
ZTS
3.6% more per $
ZTS
25.3%
21.7%
NSC
More free cash flow
ZTS
ZTS
$398.0M more FCF
ZTS
$732.0M
$334.0M
NSC
Faster 2-yr revenue CAGR
ZTS
ZTS
Annualised
ZTS
4.4%
-0.5%
NSC

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
NSC
NSC
ZTS
ZTS
Revenue
$3.0B
$2.4B
Net Profit
$644.0M
$603.0M
Gross Margin
70.2%
Operating Margin
31.5%
31.9%
Net Margin
21.7%
25.3%
Revenue YoY
-1.7%
3.0%
Net Profit YoY
-12.1%
3.8%
EPS (diluted)
$2.87
$1.37

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
NSC
NSC
ZTS
ZTS
Q4 25
$3.0B
$2.4B
Q3 25
$3.1B
$2.4B
Q2 25
$3.1B
$2.5B
Q1 25
$3.0B
$2.2B
Q4 24
$3.0B
$2.3B
Q3 24
$3.1B
$2.4B
Q2 24
$3.0B
$2.4B
Q1 24
$3.0B
$2.2B
Net Profit
NSC
NSC
ZTS
ZTS
Q4 25
$644.0M
$603.0M
Q3 25
$711.0M
$721.0M
Q2 25
$768.0M
$718.0M
Q1 25
$750.0M
$631.0M
Q4 24
$733.0M
$581.0M
Q3 24
$1.1B
$682.0M
Q2 24
$737.0M
$624.0M
Q1 24
$53.0M
$599.0M
Gross Margin
NSC
NSC
ZTS
ZTS
Q4 25
70.2%
Q3 25
71.5%
Q2 25
73.6%
Q1 25
72.0%
Q4 24
69.5%
Q3 24
70.6%
Q2 24
71.7%
Q1 24
70.6%
Operating Margin
NSC
NSC
ZTS
ZTS
Q4 25
31.5%
31.9%
Q3 25
35.4%
37.0%
Q2 25
37.8%
36.7%
Q1 25
38.3%
36.5%
Q4 24
37.4%
31.6%
Q3 24
52.3%
36.6%
Q2 24
37.2%
33.0%
Q1 24
7.1%
34.1%
Net Margin
NSC
NSC
ZTS
ZTS
Q4 25
21.7%
25.3%
Q3 25
22.9%
30.0%
Q2 25
24.7%
29.2%
Q1 25
25.1%
28.4%
Q4 24
24.2%
25.1%
Q3 24
36.0%
28.6%
Q2 24
24.2%
26.4%
Q1 24
1.8%
27.4%
EPS (diluted)
NSC
NSC
ZTS
ZTS
Q4 25
$2.87
$1.37
Q3 25
$3.16
$1.63
Q2 25
$3.41
$1.61
Q1 25
$3.31
$1.41
Q4 24
$3.24
$1.29
Q3 24
$4.85
$1.50
Q2 24
$3.25
$1.37
Q1 24
$0.23
$1.31

Balance Sheet & Financial Strength

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

Metric
NSC
NSC
ZTS
ZTS
Cash + ST InvestmentsLiquidity on hand
$1.5B
Total DebtLower is stronger
$16.5B
Stockholders' EquityBook value
$15.5B
$3.3B
Total Assets
$45.2B
$15.5B
Debt / EquityLower = less leverage
1.06×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NSC
NSC
ZTS
ZTS
Q4 25
$1.5B
Q3 25
$1.4B
$2.1B
Q2 25
$1.3B
$1.4B
Q1 25
$1.0B
$1.7B
Q4 24
$1.6B
$2.0B
Q3 24
$975.0M
$1.7B
Q2 24
$659.0M
$1.6B
Q1 24
$652.0M
$2.0B
Total Debt
NSC
NSC
ZTS
ZTS
Q4 25
$16.5B
Q3 25
$16.5B
Q2 25
$16.5B
Q1 25
$16.7B
Q4 24
$16.7B
Q3 24
$16.6B
Q2 24
$16.9B
Q1 24
$17.2B
Stockholders' Equity
NSC
NSC
ZTS
ZTS
Q4 25
$15.5B
$3.3B
Q3 25
$15.1B
$5.4B
Q2 25
$14.8B
$5.0B
Q1 25
$14.5B
$4.7B
Q4 24
$14.3B
$4.8B
Q3 24
$13.8B
$5.2B
Q2 24
$13.0B
$5.0B
Q1 24
$12.5B
$5.1B
Total Assets
NSC
NSC
ZTS
ZTS
Q4 25
$45.2B
$15.5B
Q3 25
$44.6B
$15.2B
Q2 25
$44.2B
$14.5B
Q1 25
$43.8B
$14.1B
Q4 24
$43.7B
$14.2B
Q3 24
$43.3B
$14.4B
Q2 24
$42.6B
$14.2B
Q1 24
$42.1B
$14.3B
Debt / Equity
NSC
NSC
ZTS
ZTS
Q4 25
1.06×
Q3 25
1.09×
Q2 25
1.11×
Q1 25
1.15×
Q4 24
1.16×
Q3 24
1.21×
Q2 24
1.30×
Q1 24
1.37×

Cash Flow & Capital Efficiency

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

Metric
NSC
NSC
ZTS
ZTS
Operating Cash FlowLast quarter
$1.1B
$893.0M
Free Cash FlowOCF − Capex
$334.0M
$732.0M
FCF MarginFCF / Revenue
11.2%
30.7%
Capex IntensityCapex / Revenue
24.5%
6.7%
Cash ConversionOCF / Net Profit
1.65×
1.48×
TTM Free Cash FlowTrailing 4 quarters
$2.2B
$2.3B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NSC
NSC
ZTS
ZTS
Q4 25
$1.1B
$893.0M
Q3 25
$1.3B
$938.0M
Q2 25
$1.1B
$486.0M
Q1 25
$950.0M
$587.0M
Q4 24
$951.0M
$905.0M
Q3 24
$1.2B
$951.0M
Q2 24
$1.0B
$502.0M
Q1 24
$839.0M
$595.0M
Free Cash Flow
NSC
NSC
ZTS
ZTS
Q4 25
$334.0M
$732.0M
Q3 25
$720.0M
$805.0M
Q2 25
$602.0M
$308.0M
Q1 25
$501.0M
$438.0M
Q4 24
$276.0M
$689.0M
Q3 24
$645.0M
$784.0M
Q2 24
$468.0M
$370.0M
Q1 24
$282.0M
$455.0M
FCF Margin
NSC
NSC
ZTS
ZTS
Q4 25
11.2%
30.7%
Q3 25
23.2%
33.5%
Q2 25
19.4%
12.5%
Q1 25
16.7%
19.7%
Q4 24
9.1%
29.7%
Q3 24
21.1%
32.8%
Q2 24
15.4%
15.7%
Q1 24
9.4%
20.8%
Capex Intensity
NSC
NSC
ZTS
ZTS
Q4 25
24.5%
6.7%
Q3 25
17.8%
5.5%
Q2 25
15.3%
7.2%
Q1 25
15.0%
6.7%
Q4 24
22.3%
9.3%
Q3 24
19.0%
7.0%
Q2 24
18.7%
5.6%
Q1 24
18.5%
6.4%
Cash Conversion
NSC
NSC
ZTS
ZTS
Q4 25
1.65×
1.48×
Q3 25
1.79×
1.30×
Q2 25
1.40×
0.68×
Q1 25
1.27×
0.93×
Q4 24
1.30×
1.56×
Q3 24
1.12×
1.39×
Q2 24
1.41×
0.80×
Q1 24
15.83×
0.99×

Financial Flow Comparison

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

Revenue Breakdown by Segment

NSC
NSC

Railway Operating Revenues Market Group Merchandise$1.9B63%
Metals And Construction$404.0M14%
Railway Operating Revenues Market Group Coal$347.0M12%
Automotive$293.0M10%

ZTS
ZTS

Other$1.3B56%
Livestock$234.0M10%
Pain Sedation$209.0M9%
Other Pharmaceuticals$188.0M8%
Swine$125.0M5%
Poultry$117.0M5%
Fish$81.0M3%
Other Non Pharmaceuticals$70.0M3%
Manufactured Product Other$18.0M1%
Medicated Feed Additives$12.0M1%

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