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Side-by-side financial comparison of ILLUMINA, INC. (ILMN) and Occidental Petroleum (OXY). Click either name above to swap in a different company.

Occidental Petroleum is the larger business by last-quarter revenue ($1.7B vs $1.1B, roughly 1.5× ILLUMINA, INC.). ILLUMINA, INC. runs the higher net margin — 12.3% vs 6.9%, a 5.4% gap on every dollar of revenue. On growth, ILLUMINA, INC. posted the faster year-over-year revenue change (4.8% vs -75.8%). Occidental Petroleum produced more free cash flow last quarter ($1.9B vs $251.0M). Over the past eight quarters, ILLUMINA, INC.'s revenue compounded faster (-1.3% CAGR vs -50.4%).

Illumina, Inc. is an American biotechnology company, headquartered in San Diego, California. Incorporated on April 1, 1998, Illumina develops, manufactures, and markets integrated systems for the analysis of genetic variation and biological function. The company provides a line of products and services that serves the sequencing, genotyping and gene expression, and proteomics markets, and serves more than 155 countries.

Occidental Petroleum Corporation is an American company engaged in hydrocarbon exploration in the United States and the Middle East as well as petrochemical manufacturing in the United States, Canada, and Chile. It is incorporated under the Delaware General Corporation Law and headquartered in Houston. The company ranked 183rd on the 2021 Fortune 500 based on its 2020 revenues and 670th on the 2021 Forbes Global 2000.

ILMN vs OXY — Head-to-Head

Bigger by revenue
OXY
OXY
1.5× larger
OXY
$1.7B
$1.1B
ILMN
Growing faster (revenue YoY)
ILMN
ILMN
+80.6% gap
ILMN
4.8%
-75.8%
OXY
Higher net margin
ILMN
ILMN
5.4% more per $
ILMN
12.3%
6.9%
OXY
More free cash flow
OXY
OXY
$1.6B more FCF
OXY
$1.9B
$251.0M
ILMN
Faster 2-yr revenue CAGR
ILMN
ILMN
Annualised
ILMN
-1.3%
-50.4%
OXY

Income Statement — Q1 FY2027 vs Q4 FY2025

Metric
ILMN
ILMN
OXY
OXY
Revenue
$1.1B
$1.7B
Net Profit
$134.0M
$114.0M
Gross Margin
66.1%
Operating Margin
19.2%
-6.5%
Net Margin
12.3%
6.9%
Revenue YoY
4.8%
-75.8%
Net Profit YoY
195.0%
EPS (diluted)
$0.87
$-0.07

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
ILMN
ILMN
OXY
OXY
Q1 26
$1.1B
Q4 25
$1.2B
$1.7B
Q3 25
$6.7B
Q2 25
$6.3B
Q1 25
$6.9B
Q4 24
$1.1B
$6.9B
Q3 24
$1.1B
$7.0B
Q2 24
$1.1B
$6.8B
Net Profit
ILMN
ILMN
OXY
OXY
Q1 26
$134.0M
Q4 25
$334.0M
$114.0M
Q3 25
$842.0M
Q2 25
$468.0M
Q1 25
$945.0M
Q4 24
$186.0M
$-120.0M
Q3 24
$705.0M
$1.1B
Q2 24
$-2.0B
$1.2B
Gross Margin
ILMN
ILMN
OXY
OXY
Q1 26
66.1%
Q4 25
65.5%
Q3 25
87.8%
Q2 25
86.6%
Q1 25
88.4%
Q4 24
65.9%
89.0%
Q3 24
69.0%
88.5%
Q2 24
64.8%
87.9%
Operating Margin
ILMN
ILMN
OXY
OXY
Q1 26
19.2%
Q4 25
17.4%
-6.5%
Q3 25
17.4%
Q2 25
11.7%
Q1 25
19.3%
Q4 24
15.8%
-2.5%
Q3 24
68.6%
22.7%
Q2 24
-147.2%
24.0%
Net Margin
ILMN
ILMN
OXY
OXY
Q1 26
12.3%
Q4 25
28.8%
6.9%
Q3 25
12.6%
Q2 25
7.4%
Q1 25
13.7%
Q4 24
16.8%
-1.7%
Q3 24
65.3%
16.2%
Q2 24
-178.8%
17.2%
EPS (diluted)
ILMN
ILMN
OXY
OXY
Q1 26
$0.87
Q4 25
$2.16
$-0.07
Q3 25
$0.65
Q2 25
$0.26
Q1 25
$0.77
Q4 24
$1.16
$-0.32
Q3 24
$4.42
$0.98
Q2 24
$-12.48
$1.03

Balance Sheet & Financial Strength

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

Metric
ILMN
ILMN
OXY
OXY
Cash + ST InvestmentsLiquidity on hand
$1.2B
$2.0B
Total DebtLower is stronger
$20.6B
Stockholders' EquityBook value
$2.7B
$36.0B
Total Assets
$6.6B
$84.2B
Debt / EquityLower = less leverage
0.57×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ILMN
ILMN
OXY
OXY
Q1 26
$1.2B
Q4 25
$1.6B
$2.0B
Q3 25
$2.2B
Q2 25
$2.3B
Q1 25
$2.6B
Q4 24
$93.0M
$2.1B
Q3 24
$70.0M
$1.8B
Q2 24
$74.0M
$1.8B
Total Debt
ILMN
ILMN
OXY
OXY
Q1 26
Q4 25
$20.6B
Q3 25
$20.8B
Q2 25
$23.3B
Q1 25
$24.0B
Q4 24
$25.0B
Q3 24
$25.5B
Q2 24
$18.4B
Stockholders' Equity
ILMN
ILMN
OXY
OXY
Q1 26
$2.7B
Q4 25
$2.7B
$36.0B
Q3 25
$36.3B
Q2 25
$35.7B
Q1 25
$34.7B
Q4 24
$2.4B
$34.2B
Q3 24
$2.1B
$34.7B
Q2 24
$1.4B
$32.1B
Total Assets
ILMN
ILMN
OXY
OXY
Q1 26
$6.6B
Q4 25
$6.6B
$84.2B
Q3 25
$83.5B
Q2 25
$84.4B
Q1 25
$85.0B
Q4 24
$6.3B
$85.4B
Q3 24
$6.0B
$85.8B
Q2 24
$6.1B
$76.2B
Debt / Equity
ILMN
ILMN
OXY
OXY
Q1 26
Q4 25
0.57×
Q3 25
0.57×
Q2 25
0.65×
Q1 25
0.69×
Q4 24
0.73×
Q3 24
0.73×
Q2 24
0.57×

Cash Flow & Capital Efficiency

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

Metric
ILMN
ILMN
OXY
OXY
Operating Cash FlowLast quarter
$289.0M
$2.6B
Free Cash FlowOCF − Capex
$251.0M
$1.9B
FCF MarginFCF / Revenue
23.0%
113.4%
Capex IntensityCapex / Revenue
45.4%
Cash ConversionOCF / Net Profit
2.16×
23.11×
TTM Free Cash FlowTrailing 4 quarters
$1.1B
$4.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ILMN
ILMN
OXY
OXY
Q1 26
$289.0M
Q4 25
$321.0M
$2.6B
Q3 25
$2.8B
Q2 25
$3.0B
Q1 25
$2.1B
Q4 24
$364.0M
$3.4B
Q3 24
$316.0M
$3.7B
Q2 24
$80.0M
$2.4B
Free Cash Flow
ILMN
ILMN
OXY
OXY
Q1 26
$251.0M
Q4 25
$267.0M
$1.9B
Q3 25
$1.0B
Q2 25
$962.0M
Q1 25
$240.0M
Q4 24
$335.0M
$1.6B
Q3 24
$284.0M
$2.0B
Q2 24
$49.0M
$623.0M
FCF Margin
ILMN
ILMN
OXY
OXY
Q1 26
23.0%
Q4 25
23.0%
113.4%
Q3 25
15.3%
Q2 25
15.2%
Q1 25
3.5%
Q4 24
30.3%
23.0%
Q3 24
26.3%
28.5%
Q2 24
4.4%
9.2%
Capex Intensity
ILMN
ILMN
OXY
OXY
Q1 26
Q4 25
45.4%
Q3 25
26.5%
Q2 25
31.6%
Q1 25
27.6%
Q4 24
2.6%
26.0%
Q3 24
3.0%
24.0%
Q2 24
2.8%
26.0%
Cash Conversion
ILMN
ILMN
OXY
OXY
Q1 26
2.16×
Q4 25
0.96×
23.11×
Q3 25
3.31×
Q2 25
6.32×
Q1 25
2.27×
Q4 24
1.96×
Q3 24
0.45×
3.23×
Q2 24
2.05×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ILMN
ILMN

Product revenue$917.0M84%
Service and other revenue$174.0M16%

OXY
OXY

Segment breakdown not available.

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