ZLAB (Zai Lab) Shiller PE Ratio: (As of Jul. 15, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ZLAB Zai Lab Ltd ZLAB
64 GF Score
Price $19.30
GF Value $30.21
Valuation Possible Value Trap
! 7 Warning Signs
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What is Zai Lab Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Zai Lab  (NAS:ZLAB) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


Zai Lab Shiller PE Ratio Related Terms


Zai Lab Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Zai Lab's Shiller PE 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.

Zai Lab Shiller PE Ratio Chart

Zai Lab Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Zai Lab Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Shiller PE Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

ZLAB vs STOK, ADMA, VRDN: Shiller PE Ratio Comparison

For the Biotechnology subindustry, Zai Lab's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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 Shiller PE Ratio vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Zai Lab's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Zai Lab's Shiller PE Ratio falls into.


ZLAB
64GF Score
Zai Lab Ltd ZLAB
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Zai Lab Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Zai Lab's E10 for the fiscal year that ended in Dec25 is calculated as:

For example, Zai Lab's adjusted earnings per share data for the fiscal year that ended in Dec25 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Dec25 (Change)*Current CPI (Dec25)
=-1.6/115.8323*115.8323
=-1.600

Current CPI (Dec25) = 115.8323.

Zai Lab Annual Data

Earnings per Share (Diluted) CPI Adj_EPS
201612 -0.761 102.600 -0.859
201712 -2.320 104.500 -2.572
201812 -2.640 106.500 -2.871
201912 -3.030 111.200 -3.156
202012 -3.500 111.500 -3.636
202112 -7.600 113.108 -7.783
202212 -4.600 115.116 -4.629
202312 -3.500 114.781 -3.532
202412 -2.600 114.893 -2.621
202512 -1.600 115.832 -1.600

Add all the adjusted EPS together and divide 10 will get our E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Is Zai Lab (ZLAB) Overvalued in 2026?

Based on GuruFocus' analysis, Zai Lab stock appears to be undervalued. The current stock price of $19.30 is trading 36.1% below its estimated GF Value™ of $30.21. GuruFocus considers Zai Lab to be Possible Value Trap.

Key valuation signals for ZLAB:

  • Shiller PE Ratio:
  • GF Value™: $30.21 vs. price of $19.30 (36.1% below fair value)
  • GF Score™: 64/100 with 7 warning signs

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 Business Description

Other Exchanges 09688:Hong Kong1ZLB:Germany
Address 899 Halei Road, Building B, Pudong, Shanghai, CHN, 201203
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

Get the complete analysis for ZLAB

Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$19.30
Price
$30.21
GF Value