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

APA Corporation is the larger business by last-quarter revenue ($2.2B vs $1.2B, roughly 1.9× ILLUMINA, INC.). ILLUMINA, INC. runs the higher net margin — 28.8% vs 15.0%, a 13.8% gap on every dollar of revenue. On growth, ILLUMINA, INC. posted the faster year-over-year revenue change (5.0% vs -24.3%). Over the past eight quarters, APA Corporation's revenue compounded faster (1.4% CAGR vs -0.7%).

APA Corporation, a holding company for Apache Corporation, an American company engaged in hydrocarbon exploration. It is organized in Delaware and headquartered in Houston.

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.

APA vs ILMN — Head-to-Head

Bigger by revenue
APA
APA
1.9× larger
APA
$2.2B
$1.2B
ILMN
Growing faster (revenue YoY)
ILMN
ILMN
+29.3% gap
ILMN
5.0%
-24.3%
APA
Higher net margin
ILMN
ILMN
13.8% more per $
ILMN
28.8%
15.0%
APA
Faster 2-yr revenue CAGR
APA
APA
Annualised
APA
1.4%
-0.7%
ILMN

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
APA
APA
ILMN
ILMN
Revenue
$2.2B
$1.2B
Net Profit
$331.0M
$334.0M
Gross Margin
65.5%
Operating Margin
32.5%
17.4%
Net Margin
15.0%
28.8%
Revenue YoY
-24.3%
5.0%
Net Profit YoY
-22.1%
185.5%
EPS (diluted)
$0.79
$2.16

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
APA
APA
ILMN
ILMN
Q4 25
$2.2B
$1.2B
Q3 25
$2.3B
Q2 25
$2.3B
Q1 25
$2.7B
Q4 24
$2.9B
$1.1B
Q3 24
$2.7B
$1.1B
Q2 24
$2.8B
$1.1B
Q1 24
$2.1B
$1.1B
Net Profit
APA
APA
ILMN
ILMN
Q4 25
$331.0M
$334.0M
Q3 25
$205.0M
Q2 25
$603.0M
Q1 25
$418.0M
Q4 24
$425.0M
$186.0M
Q3 24
$-223.0M
$705.0M
Q2 24
$541.0M
$-2.0B
Q1 24
$212.0M
$-126.0M
Gross Margin
APA
APA
ILMN
ILMN
Q4 25
65.5%
Q3 25
Q2 25
Q1 25
Q4 24
65.9%
Q3 24
69.0%
Q2 24
64.8%
Q1 24
62.0%
Operating Margin
APA
APA
ILMN
ILMN
Q4 25
32.5%
17.4%
Q3 25
33.7%
Q2 25
31.8%
Q1 25
31.9%
Q4 24
31.4%
15.8%
Q3 24
-5.2%
68.6%
Q2 24
34.4%
-147.2%
Q1 24
32.2%
-10.3%
Net Margin
APA
APA
ILMN
ILMN
Q4 25
15.0%
28.8%
Q3 25
9.0%
Q2 25
26.0%
Q1 25
15.4%
Q4 24
14.6%
16.8%
Q3 24
-8.1%
65.3%
Q2 24
19.0%
-178.8%
Q1 24
9.9%
-11.7%
EPS (diluted)
APA
APA
ILMN
ILMN
Q4 25
$0.79
$2.16
Q3 25
$0.57
Q2 25
$1.67
Q1 25
$0.96
Q4 24
$0.97
$1.16
Q3 24
$-0.60
$4.42
Q2 24
$1.46
$-12.48
Q1 24
$0.44
$-0.79

Balance Sheet & Financial Strength

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

Metric
APA
APA
ILMN
ILMN
Cash + ST InvestmentsLiquidity on hand
$516.0M
$1.6B
Total DebtLower is stronger
$4.3B
Stockholders' EquityBook value
$6.1B
$2.7B
Total Assets
$17.8B
$6.6B
Debt / EquityLower = less leverage
0.70×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
APA
APA
ILMN
ILMN
Q4 25
$516.0M
$1.6B
Q3 25
$475.0M
Q2 25
$107.0M
Q1 25
$67.0M
Q4 24
$625.0M
$93.0M
Q3 24
$64.0M
$70.0M
Q2 24
$160.0M
$74.0M
Q1 24
$102.0M
Total Debt
APA
APA
ILMN
ILMN
Q4 25
$4.3B
Q3 25
$4.3B
Q2 25
$4.3B
Q1 25
$5.2B
Q4 24
$6.0B
Q3 24
$6.4B
Q2 24
$6.7B
Q1 24
$5.2B
Stockholders' Equity
APA
APA
ILMN
ILMN
Q4 25
$6.1B
$2.7B
Q3 25
$6.0B
Q2 25
$5.9B
Q1 25
$5.4B
Q4 24
$5.3B
$2.4B
Q3 24
$5.1B
$2.1B
Q2 24
$5.4B
$1.4B
Q1 24
$2.6B
$5.7B
Total Assets
APA
APA
ILMN
ILMN
Q4 25
$17.8B
$6.6B
Q3 25
$17.7B
Q2 25
$18.1B
Q1 25
$18.5B
Q4 24
$19.4B
$6.3B
Q3 24
$19.4B
$6.0B
Q2 24
$20.2B
$6.1B
Q1 24
$15.0B
$10.0B
Debt / Equity
APA
APA
ILMN
ILMN
Q4 25
0.70×
Q3 25
0.72×
Q2 25
0.73×
Q1 25
0.96×
Q4 24
1.13×
Q3 24
1.25×
Q2 24
1.24×
Q1 24
1.99×

Cash Flow & Capital Efficiency

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

Metric
APA
APA
ILMN
ILMN
Operating Cash FlowLast quarter
$808.0M
$321.0M
Free Cash FlowOCF − Capex
$267.0M
FCF MarginFCF / Revenue
23.0%
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
2.44×
0.96×
TTM Free Cash FlowTrailing 4 quarters
$935.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
APA
APA
ILMN
ILMN
Q4 25
$808.0M
$321.0M
Q3 25
$1.5B
Q2 25
$1.2B
Q1 25
$1.1B
Q4 24
$1.0B
$364.0M
Q3 24
$1.3B
$316.0M
Q2 24
$877.0M
$80.0M
Q1 24
$368.0M
$77.0M
Free Cash Flow
APA
APA
ILMN
ILMN
Q4 25
$267.0M
Q3 25
Q2 25
Q1 25
Q4 24
$335.0M
Q3 24
$284.0M
Q2 24
$49.0M
Q1 24
$41.0M
FCF Margin
APA
APA
ILMN
ILMN
Q4 25
23.0%
Q3 25
Q2 25
Q1 25
Q4 24
30.3%
Q3 24
26.3%
Q2 24
4.4%
Q1 24
3.8%
Capex Intensity
APA
APA
ILMN
ILMN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
2.6%
Q3 24
3.0%
Q2 24
2.8%
Q1 24
3.3%
Cash Conversion
APA
APA
ILMN
ILMN
Q4 25
2.44×
0.96×
Q3 25
7.12×
Q2 25
1.96×
Q1 25
2.62×
Q4 24
2.44×
1.96×
Q3 24
0.45×
Q2 24
1.62×
Q1 24
1.74×

Financial Flow Comparison

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

Revenue Breakdown by Segment

APA
APA

Oil And Gas Excluding Purchased$1.7B76%
Oil And Gas Purchased$323.0M15%
Oil Reserves$114.0M5%
Other$72.0M3%
Natural Gas Reserves$30.0M1%

ILMN
ILMN

Product revenue$990.0M85%
Service and other revenue$169.0M15%

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