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Side-by-side financial comparison of CarParts.com, Inc. (PRTS) and Zai Lab Ltd (ZLAB). Click either name above to swap in a different company.

Zai Lab Ltd is the larger business by last-quarter revenue ($127.1M vs $120.4M, roughly 1.1× CarParts.com, Inc.). On growth, Zai Lab Ltd posted the faster year-over-year revenue change (17.1% vs -9.8%). Over the past eight quarters, Zai Lab Ltd's revenue compounded faster (20.8% CAGR vs -14.9%).

Genuine Parts Company (GPC) is an American automotive and industrial parts distributor based in Atlanta, Georgia. Established by brothers Carlyle and Malcolm Fraser in 1928, the company has approximately 60,000 employees. In addition to the United States, GPC has operated in Australasia, Belgium, Canada, France, Germany, Mexico, the Netherlands, Poland, and the United Kingdom. GPC's subsidiaries include industrial parts distributor Motion as well as NAPA Auto Parts, which primarily sells part...

Zai Lab Ltd is a global biopharmaceutical company focused on developing, manufacturing and commercializing innovative therapies for oncology, autoimmune disorders, infectious diseases and other unmet medical needs. It operates primarily in the Greater China region and partners with leading global biotech firms to expand access to life-saving treatments for underserved patient populations.

PRTS vs ZLAB — Head-to-Head

Bigger by revenue
ZLAB
ZLAB
1.1× larger
ZLAB
$127.1M
$120.4M
PRTS
Growing faster (revenue YoY)
ZLAB
ZLAB
+26.9% gap
ZLAB
17.1%
-9.8%
PRTS
Faster 2-yr revenue CAGR
ZLAB
ZLAB
Annualised
ZLAB
20.8%
-14.9%
PRTS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
PRTS
PRTS
ZLAB
ZLAB
Revenue
$120.4M
$127.1M
Net Profit
$-11.6M
Gross Margin
33.2%
51.0%
Operating Margin
-54.6%
Net Margin
-9.6%
Revenue YoY
-9.8%
17.1%
Net Profit YoY
25.0%
EPS (diluted)
$-0.82
$-0.05

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
PRTS
PRTS
ZLAB
ZLAB
Q4 25
$120.4M
$127.1M
Q3 25
$127.8M
$115.4M
Q2 25
$151.9M
$109.1M
Q1 25
$147.4M
$105.7M
Q4 24
$133.5M
$108.5M
Q3 24
$144.8M
$101.8M
Q2 24
$144.3M
$100.1M
Q1 24
$166.3M
$87.1M
Net Profit
PRTS
PRTS
ZLAB
ZLAB
Q4 25
$-11.6M
Q3 25
$-10.9M
$-36.0M
Q2 25
$-12.7M
$-40.7M
Q1 25
$-15.3M
$-48.4M
Q4 24
$-15.4M
Q3 24
$-10.0M
$-41.7M
Q2 24
$-8.7M
$-80.3M
Q1 24
$-6.5M
$-53.5M
Gross Margin
PRTS
PRTS
ZLAB
ZLAB
Q4 25
33.2%
51.0%
Q3 25
33.1%
59.5%
Q2 25
32.8%
60.6%
Q1 25
32.1%
63.6%
Q4 24
32.5%
61.5%
Q3 24
35.2%
64.1%
Q2 24
33.5%
64.9%
Q1 24
32.4%
61.4%
Operating Margin
PRTS
PRTS
ZLAB
ZLAB
Q4 25
-54.6%
Q3 25
-7.9%
-42.3%
Q2 25
-8.2%
-50.3%
Q1 25
-10.3%
-53.3%
Q4 24
-11.6%
-62.6%
Q3 24
-6.9%
-66.6%
Q2 24
-6.0%
-76.0%
Q1 24
-3.9%
-80.7%
Net Margin
PRTS
PRTS
ZLAB
ZLAB
Q4 25
-9.6%
Q3 25
-8.5%
-31.2%
Q2 25
-8.4%
-37.3%
Q1 25
-10.4%
-45.8%
Q4 24
-11.5%
Q3 24
-6.9%
-40.9%
Q2 24
-6.0%
-80.2%
Q1 24
-3.9%
-61.4%
EPS (diluted)
PRTS
PRTS
ZLAB
ZLAB
Q4 25
$-0.82
$-0.05
Q3 25
$-0.19
$-0.03
Q2 25
$-0.23
$-0.04
Q1 25
$-0.27
$-0.04
Q4 24
$-0.28
$-0.09
Q3 24
$-0.17
$-0.04
Q2 24
$-0.15
$-0.08
Q1 24
$-0.11
$-0.05

Balance Sheet & Financial Strength

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

Metric
PRTS
PRTS
ZLAB
ZLAB
Cash + ST InvestmentsLiquidity on hand
$25.8M
$689.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$53.5M
$715.5M
Total Assets
$184.9M
$1.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
PRTS
PRTS
ZLAB
ZLAB
Q4 25
$25.8M
$689.6M
Q3 25
$717.2M
Q2 25
$732.2M
Q1 25
$757.3M
Q4 24
$779.7M
Q3 24
$616.1M
Q2 24
$630.0M
Q1 24
$650.8M
Stockholders' Equity
PRTS
PRTS
ZLAB
ZLAB
Q4 25
$53.5M
$715.5M
Q3 25
$64.2M
$759.9M
Q2 25
$62.4M
$791.7M
Q1 25
$72.8M
$810.8M
Q4 24
$85.2M
$840.9M
Q3 24
$97.2M
$667.7M
Q2 24
$103.9M
$704.2M
Q1 24
$109.2M
$762.2M
Total Assets
PRTS
PRTS
ZLAB
ZLAB
Q4 25
$184.9M
$1.2B
Q3 25
$200.3M
$1.2B
Q2 25
$189.6M
$1.2B
Q1 25
$216.5M
$1.2B
Q4 24
$210.6M
$1.2B
Q3 24
$227.6M
$985.3M
Q2 24
$238.0M
$987.4M
Q1 24
$263.2M
$988.4M

Cash Flow & Capital Efficiency

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

Metric
PRTS
PRTS
ZLAB
ZLAB
Operating Cash FlowLast quarter
$-26.0M
Free Cash FlowOCF − Capex
$-26.7M
FCF MarginFCF / Revenue
-21.0%
Capex IntensityCapex / Revenue
0.5%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-158.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
PRTS
PRTS
ZLAB
ZLAB
Q4 25
$-26.0M
Q3 25
$-6.4M
$-32.0M
Q2 25
$-25.6M
$-31.0M
Q1 25
$5.5M
$-61.7M
Q4 24
$1.8M
$-55.8M
Q3 24
$8.5M
$-26.8M
Q2 24
$-3.6M
$-42.2M
Q1 24
$3.7M
$-90.1M
Free Cash Flow
PRTS
PRTS
ZLAB
ZLAB
Q4 25
$-26.7M
Q3 25
$-8.3M
$-35.0M
Q2 25
$-27.9M
$-33.9M
Q1 25
$3.4M
$-63.2M
Q4 24
$-631.0K
$-58.4M
Q3 24
$4.9M
$-28.2M
Q2 24
$-10.8M
$-42.9M
Q1 24
$-3.8M
$-91.1M
FCF Margin
PRTS
PRTS
ZLAB
ZLAB
Q4 25
-21.0%
Q3 25
-6.5%
-30.4%
Q2 25
-18.3%
-31.1%
Q1 25
2.3%
-59.9%
Q4 24
-0.5%
-53.8%
Q3 24
3.4%
-27.7%
Q2 24
-7.5%
-42.9%
Q1 24
-2.3%
-104.5%
Capex Intensity
PRTS
PRTS
ZLAB
ZLAB
Q4 25
0.5%
Q3 25
1.5%
2.6%
Q2 25
1.5%
2.6%
Q1 25
1.4%
1.5%
Q4 24
1.8%
2.4%
Q3 24
2.5%
1.3%
Q2 24
4.9%
0.7%
Q1 24
4.5%
1.1%

Financial Flow Comparison

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

Revenue Breakdown by Segment

PRTS
PRTS

Segment breakdown not available.

ZLAB
ZLAB

Zejula$56.0M44%
Other$21.9M17%
Nuzyra$16.0M13%
Optune$11.9M9%
XACDURO$10.7M8%
Qinlock$9.7M8%
AUGTYRO$836.0K1%

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