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

ADVANCE AUTO PARTS INC is the larger business by last-quarter revenue ($2.0B vs $1.2B, roughly 1.7× ILLUMINA, INC.). ILLUMINA, INC. runs the higher net margin — 28.8% vs 0.3%, a 28.5% gap on every dollar of revenue. On growth, ADVANCE AUTO PARTS INC posted the faster year-over-year revenue change (130.1% vs 5.0%). ILLUMINA, INC. produced more free cash flow last quarter ($267.0M vs $-21.0M). Over the past eight quarters, ILLUMINA, INC.'s revenue compounded faster (-0.7% CAGR vs -15.7%).

Advance Auto Parts, Inc. is an American automotive aftermarket parts provider. Headquartered in Raleigh, North Carolina, it serves professional installer and do it yourself (DIY) customers.

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.

AAP vs ILMN — Head-to-Head

Bigger by revenue
AAP
AAP
1.7× larger
AAP
$2.0B
$1.2B
ILMN
Growing faster (revenue YoY)
AAP
AAP
+125.1% gap
AAP
130.1%
5.0%
ILMN
Higher net margin
ILMN
ILMN
28.5% more per $
ILMN
28.8%
0.3%
AAP
More free cash flow
ILMN
ILMN
$288.0M more FCF
ILMN
$267.0M
$-21.0M
AAP
Faster 2-yr revenue CAGR
ILMN
ILMN
Annualised
ILMN
-0.7%
-15.7%
AAP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AAP
AAP
ILMN
ILMN
Revenue
$2.0B
$1.2B
Net Profit
$6.0M
$334.0M
Gross Margin
44.1%
65.5%
Operating Margin
2.2%
17.4%
Net Margin
0.3%
28.8%
Revenue YoY
130.1%
5.0%
Net Profit YoY
101.4%
185.5%
EPS (diluted)
$0.10
$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
AAP
AAP
ILMN
ILMN
Q1 26
$2.0B
Q4 25
$2.0B
$1.2B
Q3 25
$2.0B
Q2 25
$2.6B
Q4 24
$2.1B
$1.1B
Q3 24
$2.2B
$1.1B
Q2 24
$2.8B
$1.1B
Q1 24
$1.1B
Net Profit
AAP
AAP
ILMN
ILMN
Q1 26
$6.0M
Q4 25
$-1.0M
$334.0M
Q3 25
$15.0M
Q2 25
$24.0M
Q4 24
$-6.0M
$186.0M
Q3 24
$45.0M
$705.0M
Q2 24
$40.0M
$-2.0B
Q1 24
$-126.0M
Gross Margin
AAP
AAP
ILMN
ILMN
Q1 26
44.1%
Q4 25
43.3%
65.5%
Q3 25
43.5%
Q2 25
42.9%
Q4 24
42.3%
65.9%
Q3 24
43.6%
69.0%
Q2 24
43.4%
64.8%
Q1 24
62.0%
Operating Margin
AAP
AAP
ILMN
ILMN
Q1 26
2.2%
Q4 25
1.1%
17.4%
Q3 25
1.1%
Q2 25
-5.1%
Q4 24
15.8%
Q3 24
2.5%
68.6%
Q2 24
1.9%
-147.2%
Q1 24
-10.3%
Net Margin
AAP
AAP
ILMN
ILMN
Q1 26
0.3%
Q4 25
-0.0%
28.8%
Q3 25
0.7%
Q2 25
0.9%
Q4 24
-0.3%
16.8%
Q3 24
2.1%
65.3%
Q2 24
1.4%
-178.8%
Q1 24
-11.7%
EPS (diluted)
AAP
AAP
ILMN
ILMN
Q1 26
$0.10
Q4 25
$-0.02
$2.16
Q3 25
$0.25
Q2 25
$0.40
Q4 24
$-0.10
$1.16
Q3 24
$0.75
$4.42
Q2 24
$0.67
$-12.48
Q1 24
$-0.79

Balance Sheet & Financial Strength

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

Metric
AAP
AAP
ILMN
ILMN
Cash + ST InvestmentsLiquidity on hand
$3.1B
$1.6B
Total DebtLower is stronger
$3.4B
Stockholders' EquityBook value
$2.2B
$2.7B
Total Assets
$11.8B
$6.6B
Debt / EquityLower = less leverage
1.55×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AAP
AAP
ILMN
ILMN
Q1 26
$3.1B
Q4 25
$3.2B
$1.6B
Q3 25
$1.7B
Q2 25
$1.7B
Q4 24
$464.5M
$93.0M
Q3 24
$479.4M
$70.0M
Q2 24
$451.0M
$74.0M
Q1 24
Total Debt
AAP
AAP
ILMN
ILMN
Q1 26
$3.4B
Q4 25
$3.4B
Q3 25
$1.8B
Q2 25
$1.8B
Q4 24
$1.8B
Q3 24
$1.8B
Q2 24
$1.8B
Q1 24
Stockholders' Equity
AAP
AAP
ILMN
ILMN
Q1 26
$2.2B
Q4 25
$2.2B
$2.7B
Q3 25
$2.2B
Q2 25
$2.2B
Q4 24
$2.6B
$2.4B
Q3 24
$2.6B
$2.1B
Q2 24
$2.6B
$1.4B
Q1 24
$5.7B
Total Assets
AAP
AAP
ILMN
ILMN
Q1 26
$11.8B
Q4 25
$12.1B
$6.6B
Q3 25
$10.5B
Q2 25
$10.6B
Q4 24
$12.5B
$6.3B
Q3 24
$12.3B
$6.0B
Q2 24
$12.2B
$6.1B
Q1 24
$10.0B
Debt / Equity
AAP
AAP
ILMN
ILMN
Q1 26
1.55×
Q4 25
1.55×
Q3 25
0.81×
Q2 25
0.81×
Q4 24
0.69×
Q3 24
0.69×
Q2 24
0.70×
Q1 24

Cash Flow & Capital Efficiency

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

Metric
AAP
AAP
ILMN
ILMN
Operating Cash FlowLast quarter
$72.0M
$321.0M
Free Cash FlowOCF − Capex
$-21.0M
$267.0M
FCF MarginFCF / Revenue
-1.1%
23.0%
Capex IntensityCapex / Revenue
4.7%
Cash ConversionOCF / Net Profit
12.00×
0.96×
TTM Free Cash FlowTrailing 4 quarters
$-298.0M
$935.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AAP
AAP
ILMN
ILMN
Q1 26
$72.0M
Q4 25
$-12.0M
$321.0M
Q3 25
$50.0M
Q2 25
$-156.0M
Q4 24
$70.0M
$364.0M
Q3 24
$85.0M
$316.0M
Q2 24
$3.0M
$80.0M
Q1 24
$77.0M
Free Cash Flow
AAP
AAP
ILMN
ILMN
Q1 26
$-21.0M
Q4 25
$-76.0M
$267.0M
Q3 25
$-3.0M
Q2 25
$-198.0M
Q4 24
$27.0M
$335.0M
Q3 24
$44.0M
$284.0M
Q2 24
$-43.0M
$49.0M
Q1 24
$41.0M
FCF Margin
AAP
AAP
ILMN
ILMN
Q1 26
-1.1%
Q4 25
-3.7%
23.0%
Q3 25
-0.1%
Q2 25
-7.7%
Q4 24
1.3%
30.3%
Q3 24
2.0%
26.3%
Q2 24
-1.6%
4.4%
Q1 24
3.8%
Capex Intensity
AAP
AAP
ILMN
ILMN
Q1 26
4.7%
Q4 25
3.1%
Q3 25
2.6%
Q2 25
1.6%
Q4 24
2.0%
2.6%
Q3 24
1.9%
3.0%
Q2 24
1.7%
2.8%
Q1 24
3.3%
Cash Conversion
AAP
AAP
ILMN
ILMN
Q1 26
12.00×
Q4 25
0.96×
Q3 25
3.33×
Q2 25
-6.50×
Q4 24
1.96×
Q3 24
1.89×
0.45×
Q2 24
0.07×
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

AAP
AAP

Segment breakdown not available.

ILMN
ILMN

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

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