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Side-by-side financial comparison of Amgen (AMGN) and Vistra Corp. (VST). Click either name above to swap in a different company.

Amgen is the larger business by last-quarter revenue ($8.6B vs $4.8B, roughly 1.8× Vistra Corp.). Amgen runs the higher net margin — 21.1% vs 4.8%, a 16.3% gap on every dollar of revenue. On growth, Vistra Corp. posted the faster year-over-year revenue change (31.2% vs 5.8%). Vistra Corp. produced more free cash flow last quarter ($596.0M vs $1.5M). Over the past eight quarters, Vistra Corp.'s revenue compounded faster (23.3% CAGR vs 1.4%).

Amgen Inc. is an American multinational biopharmaceutical company headquartered in Thousand Oaks, California. The company is ranked 18th on the list of largest biomedical companies by revenue. The name "AMGen" is a portmanteau of the company's original name, Applied Molecular Genetics.

Vistra may refer to either of two companies:Vistra, a corporate services company based in Hong Kong Vistra Corp, an energy company based in Texas

AMGN vs VST — Head-to-Head

Bigger by revenue
AMGN
AMGN
1.8× larger
AMGN
$8.6B
$4.8B
VST
Growing faster (revenue YoY)
VST
VST
+25.5% gap
VST
31.2%
5.8%
AMGN
Higher net margin
AMGN
AMGN
16.3% more per $
AMGN
21.1%
4.8%
VST
More free cash flow
VST
VST
$594.5M more FCF
VST
$596.0M
$1.5M
AMGN
Faster 2-yr revenue CAGR
VST
VST
Annualised
VST
23.3%
1.4%
AMGN

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
AMGN
AMGN
VST
VST
Revenue
$8.6B
$4.8B
Net Profit
$1.8B
$233.0M
Gross Margin
68.2%
Operating Margin
30.9%
9.9%
Net Margin
21.1%
4.8%
Revenue YoY
5.8%
31.2%
Net Profit YoY
-47.2%
EPS (diluted)
$3.34
$0.55

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
AMGN
AMGN
VST
VST
Q1 26
$8.6B
Q4 25
$9.9B
$4.8B
Q3 25
$9.6B
$4.8B
Q2 25
$9.2B
$3.8B
Q1 25
$8.1B
$4.3B
Q4 24
$9.1B
$3.7B
Q3 24
$8.5B
$4.3B
Q2 24
$8.4B
$3.6B
Net Profit
AMGN
AMGN
VST
VST
Q1 26
$1.8B
Q4 25
$1.3B
$233.0M
Q3 25
$3.2B
$652.0M
Q2 25
$1.4B
$327.0M
Q1 25
$1.7B
$-268.0M
Q4 24
$627.0M
$441.0M
Q3 24
$2.8B
$1.9B
Q2 24
$746.0M
$365.0M
Gross Margin
AMGN
AMGN
VST
VST
Q1 26
68.2%
Q4 25
69.8%
Q3 25
67.8%
Q2 25
67.2%
Q1 25
63.6%
Q4 24
65.7%
Q3 24
61.1%
Q2 24
61.4%
Operating Margin
AMGN
AMGN
VST
VST
Q1 26
30.9%
Q4 25
27.6%
9.9%
Q3 25
26.4%
21.7%
Q2 25
28.9%
13.7%
Q1 25
14.5%
-2.8%
Q4 24
25.4%
16.4%
Q3 24
24.1%
59.6%
Q2 24
22.8%
22.5%
Net Margin
AMGN
AMGN
VST
VST
Q1 26
21.1%
Q4 25
13.5%
4.8%
Q3 25
33.7%
13.6%
Q2 25
15.6%
8.7%
Q1 25
21.2%
-6.3%
Q4 24
6.9%
12.0%
Q3 24
33.3%
43.5%
Q2 24
8.9%
10.1%
EPS (diluted)
AMGN
AMGN
VST
VST
Q1 26
$3.34
Q4 25
$2.45
$0.55
Q3 25
$5.93
$1.75
Q2 25
$2.65
$0.81
Q1 25
$3.20
$-0.93
Q4 24
$1.17
$1.09
Q3 24
$5.22
$5.25
Q2 24
$1.38
$0.90

Balance Sheet & Financial Strength

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

Metric
AMGN
AMGN
VST
VST
Cash + ST InvestmentsLiquidity on hand
$12.0M
$785.0M
Total DebtLower is stronger
$57.3B
$15.8B
Stockholders' EquityBook value
$9.2B
$5.1B
Total Assets
$92.5B
$41.5B
Debt / EquityLower = less leverage
6.24×
3.11×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMGN
AMGN
VST
VST
Q1 26
$12.0M
Q4 25
$9.1B
$785.0M
Q3 25
$9.4B
$602.0M
Q2 25
$8.0B
$458.0M
Q1 25
$8.8B
$561.0M
Q4 24
$12.0B
$1.2B
Q3 24
$9.0B
$905.0M
Q2 24
$9.3B
$1.6B
Total Debt
AMGN
AMGN
VST
VST
Q1 26
$57.3B
Q4 25
$54.6B
$15.8B
Q3 25
$54.6B
$15.8B
Q2 25
$56.2B
$15.5B
Q1 25
$57.4B
$15.4B
Q4 24
$60.1B
$15.4B
Q3 24
$60.4B
$13.9B
Q2 24
$62.6B
$13.9B
Stockholders' Equity
AMGN
AMGN
VST
VST
Q1 26
$9.2B
Q4 25
$8.7B
$5.1B
Q3 25
$9.6B
$5.2B
Q2 25
$7.4B
$4.8B
Q1 25
$6.2B
$4.8B
Q4 24
$5.9B
$5.6B
Q3 24
$7.5B
$5.4B
Q2 24
$5.9B
$5.6B
Total Assets
AMGN
AMGN
VST
VST
Q1 26
$92.5B
Q4 25
$90.6B
$41.5B
Q3 25
$90.1B
$38.0B
Q2 25
$87.9B
$38.1B
Q1 25
$89.4B
$38.2B
Q4 24
$91.8B
$37.8B
Q3 24
$90.9B
$37.9B
Q2 24
$90.9B
$39.1B
Debt / Equity
AMGN
AMGN
VST
VST
Q1 26
6.24×
Q4 25
6.31×
3.11×
Q3 25
5.67×
3.02×
Q2 25
7.57×
3.22×
Q1 25
9.24×
3.20×
Q4 24
10.23×
2.77×
Q3 24
8.02×
2.56×
Q2 24
10.57×
2.49×

Cash Flow & Capital Efficiency

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

Metric
AMGN
AMGN
VST
VST
Operating Cash FlowLast quarter
$2.2B
$1.4B
Free Cash FlowOCF − Capex
$1.5M
$596.0M
FCF MarginFCF / Revenue
0.0%
12.4%
Capex IntensityCapex / Revenue
0.0%
17.4%
Cash ConversionOCF / Net Profit
1.20×
6.15×
TTM Free Cash FlowTrailing 4 quarters
$7.1B
$1.3B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMGN
AMGN
VST
VST
Q1 26
$2.2B
Q4 25
$1.6B
$1.4B
Q3 25
$4.7B
$1.5B
Q2 25
$2.3B
$572.0M
Q1 25
$1.4B
$599.0M
Q4 24
$4.8B
$1.4B
Q3 24
$3.6B
$1.7B
Q2 24
$2.5B
$1.2B
Free Cash Flow
AMGN
AMGN
VST
VST
Q1 26
$1.5M
Q4 25
$961.0M
$596.0M
Q3 25
$4.2B
$1.0B
Q2 25
$1.9B
$-118.0M
Q1 25
$980.0M
$-169.0M
Q4 24
$4.4B
$923.0M
Q3 24
$3.3B
$1.0B
Q2 24
$2.2B
$698.0M
FCF Margin
AMGN
AMGN
VST
VST
Q1 26
0.0%
Q4 25
9.7%
12.4%
Q3 25
44.4%
21.1%
Q2 25
20.8%
-3.1%
Q1 25
12.0%
-4.0%
Q4 24
48.4%
25.2%
Q3 24
39.0%
23.4%
Q2 24
26.5%
19.4%
Capex Intensity
AMGN
AMGN
VST
VST
Q1 26
0.0%
Q4 25
6.5%
17.4%
Q3 25
4.6%
9.6%
Q2 25
4.0%
18.4%
Q1 25
5.0%
18.1%
Q4 24
4.1%
11.7%
Q3 24
3.0%
15.8%
Q2 24
2.8%
13.8%
Cash Conversion
AMGN
AMGN
VST
VST
Q1 26
1.20×
Q4 25
1.20×
6.15×
Q3 25
1.46×
2.25×
Q2 25
1.59×
1.75×
Q1 25
0.80×
Q4 24
7.61×
3.07×
Q3 24
1.26×
0.90×
Q2 24
3.30×
3.28×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AMGN
AMGN

Product sales$8.2B95%
Other revenues$400.0M5%

VST
VST

Retail Energy Charge In ERCOT$2.1B43%
Retail Energy Charge In Northeast Midwest$1.2B24%
East Segment$1.1B24%
Hedging Revenue Realized$170.0M4%
Revenue From Other Wholesale Contracts$116.0M2%
Transferable Production Tax Credit Revenues$78.0M2%
West Segment$77.0M2%
Intersegment Sales$25.0M1%

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