Zai LabZLAB +0.76%64 PEG Ratio is 0.00 as of Jun. 26, 2026. GuruFocus rates ZLAB with a GF Score™ of 64/100 and a GF Value™ of $30.30 (Possible Value Trap). The stock has 8 warning signs investors should review. Among 95 Biotechnology companies, Zai Lab ranks worse than 1052630.53% on this metric.
PE Ratio without NRI / 5-Year EBITDA Growth Rate*
PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The growth rate we use is the 5-Year EBITDA growth rate. As of today, Zai Lab's PE Ratio without NRI is 0.00. Zai Lab's 5-Year EBITDA growth rate is 20.10%. Therefore, Zai Lab's PEG Ratio for today is 0.00.
* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
The historical rank and industry rank for Zai Lab's PEG Ratio or its related term are showing as below:
ZLAB's PEG Ratio is not ranked *
in the Biotechnology industry.
Industry Median: 1.92 * Ranked among companies with meaningful PEG Ratio only.
Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.
Zai Lab (NAS:ZLAB) PEG Ratio Explanation
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.
Zai Lab PEG Ratio Related Terms
Zai Lab PEG Ratio Historical Data
* Premium members only.
The historical data trend for Zai Lab's PEG Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Biotechnology subindustry, Zai Lab's PEG Ratio, along with its competitors' market caps and PEG Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Zai Lab PEG Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Zai Lab's PEG Ratio distribution charts can be found below:
* The bar in red indicates where Zai Lab's PEG Ratio falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
Zai Lab (ZLAB) has a PEG Ratio of 0.00 as of Jun. 26, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Zai Lab and its competitors. According to the industry distribution chart, Zai Lab ranks #999999 out of 95 companies in the Biotechnology industry.
Is Zai Lab's PEG Ratio too high?
Zai Lab's current PEG Ratio is 0.00. Based on the distribution chart, Zai Lab ranks #999999 out of 95 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. Overall, Zai Lab has a GF Score™ of 64/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Zai Lab's PEG Ratio compare to TYRA and TRVI?
According to the Biotechnology industry distribution chart, Zai Lab ranks #999999 out of 95 companies for PEG Ratio. This places Zai Lab in the lower half of its industry. The industry median PEG Ratio is 1.92. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PEG Ratio for a Biotechnology company?
The median PEG Ratio among Biotechnology companies is 1.92, based on 95 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Zai Lab and its competitors. For the Biotechnology industry, the median PEG Ratio is 1.92 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Zai Lab's current PEG Ratio is 0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zai Lab stock overvalued right now?
Based on GuruFocus' analysis, Zai Lab (ZLAB) is currently considered Possible Value Trap. The stock's GF Value™ is $30.30, compared to a current price of $18.52 — trading 38.9% below its estimated fair value. The current PEG Ratio is 0.00. Zai Lab's overall GF Score™ is 64/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For Zai Lab (ZLAB), the current PEG Ratio is 0.00 as of Jun. 26, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Zai Lab (ZLAB) Overvalued in 2026?
Based on GuruFocus' analysis, Zai Lab stock appears to be undervalued.
The current stock price of $18.52 is trading 38.9% below its estimated GF Value™ of $30.30.
GuruFocus considers Zai Lab to be Possible Value Trap.
Key valuation signals for ZLAB:
PEG Ratio: 0.00
GF Value™: $30.30 vs. price of $18.52 (38.9% below fair value)
No single metric tells the full story. See the ZLAB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Zai Lab Ltd is a biopharmaceutical company focusing on discovering or licensing, developing, and commercializing proprietary therapeutics that address areas of unmet medical need including in the fields of oncology, autoimmune and infectious diseases. Zai Lab has a diverse pipeline of potentially first-in-class product candidates developed through in-house R&D and global partnerships. The company has successfully commercialized several products in China, including Zejula, Optune, Qinlock, and Nuzyra, with plans for further expansion The pipeline of proprietary drug candidates of the company includes ZL-1222, ZL-1311, ZL-6201 and many others.
64GF Score
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