ZLAB (Zai Lab) 3-Month Share Buyback Ratio: -0.35% (As of Mar. 2026 )


ZLAB Zai Lab Ltd ZLAB
64 GF Score
Price $19.12
GF Value $30.27
Valuation Possible Value Trap
! 8 Warning Signs
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What is Zai Lab 3-Month Share Buyback Ratio?

Zai Lab ZLAB -0.21% 64 3-Month Share Buyback Ratio is -0.35 as of Mar. 2026. GuruFocus rates ZLAB with a GF Score™ of 64/100 and a GF Value™ of $30.27 (Possible Value Trap). The stock has 8 warning signs investors should review.

Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.

3-Month Share Buyback Ratio measures the proportion of a company's outstanding shares repurchased over the past three months, calculated as the percentage change in shares outstanding from the previous quarter to the current quarter. A positive ratio may indicates share buybacks over the period, while a zero or negative ratio suggests no buybacks or potential share issuance. Zai Lab's current 3-Month Share Buyback Ratio was -0.35%.

Zai Lab  (NAS:ZLAB) 3-Month Share Buyback Ratio Explanation

A positive ratio may indicates share buybacks over the period, while a zero or negative ratio suggests no buybacks or potential share issuance.

Be Aware

Investors usually like share buybacks. But as pointed by Warren Buffett, only if a company buys back shares at the prices below the stock's intrinsic value, it rewards remaining shareholders. If a company buys its overvalued stocks back, it destroys shareholder value.

Zai Lab 3-Month Share Buyback Ratio Related Terms

ZLAB vs STOK, ADMA, VRDN: 3-Month Share Buyback Ratio Comparison

For the Biotechnology subindustry, Zai Lab's 3-Month Share Buyback Ratio, along with its competitors' market caps and 3-Month Share Buyback 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 3-Month Share Buyback Ratio vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Zai Lab's 3-Month Share Buyback Ratio distribution charts can be found below:

* The bar in red indicates where Zai Lab's 3-Month Share Buyback Ratio falls into.


ZLAB
64GF Score
Zai Lab Ltd ZLAB
3-Month Share Buyback Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Zai Lab 3-Month Share Buyback Ratio Calculation

Zai Lab's 3-Month Share Buyback Ratio for the quarter that ended in Mar. 2026 is calculated as

3-Month Share Buyback Ratio=(Shares Outstanding (EOP) (Dec. 2025 ) - Shares Outstanding (EOP) (Mar. 2026 )) / Shares Outstanding (EOP) (Dec. 2025 )
=(110.639 - 111.023) / 110.639
=-0.35%

* 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.

What does a 3-Month Share Buyback Ratio of -0.35 mean?
Zai Lab (ZLAB) has a 3-Month Share Buyback Ratio of -0.35 as of Mar. 2026. The 3-Month Share Buyback Ratio measures the proportion of a company's outstanding shares repurchased over the past three months, calculated as the percentage change in shares outstanding from the previous quarter to the current quarter. View historical data for Zai Lab and its competitors.
Is Zai Lab's 3-Month Share Buyback Ratio too high?
Zai Lab's current 3-Month Share Buyback Ratio is -0.35. 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 3-Month Share Buyback Ratio compare to STOK and ADMA?
Zai Lab's 3-Month Share Buyback Ratio of -0.35 can be compared against companies in the Biotechnology industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Month Share Buyback Ratio for a Biotechnology company?
A good 3-Month Share Buyback Ratio depends on the Biotechnology industry context. However, 3-Month Share Buyback 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 3-Month Share Buyback Ratio mean?
A high 3-Month Share Buyback Ratio can signal that a stock is expensive relative to its fundamentals. The 3-Month Share Buyback Ratio measures the proportion of a company's outstanding shares repurchased over the past three months, calculated as the percentage change in shares outstanding from the previous quarter to the current quarter. View historical data for Zai Lab and its competitors. Zai Lab's current 3-Month Share Buyback Ratio is -0.35. 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 $30.27, compared to a current price of $19.12 — trading 36.8% below its estimated fair value. The current 3-Month Share Buyback Ratio is -0.35. 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 3-Month Share Buyback Ratio calculated?
3-Month Share Buyback Ratio is calculated from a company's financial statements. For Zai Lab (ZLAB), the current 3-Month Share Buyback Ratio is -0.35 as of Mar. 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 $19.12 is trading 36.8% below its estimated GF Value™ of $30.27. GuruFocus considers Zai Lab to be Possible Value Trap.

Key valuation signals for ZLAB:

  • 3-Month Share Buyback Ratio: -0.35
  • GF Value™: $30.27 vs. price of $19.12 (36.8% below fair value)
  • GF Score™: 64/100 with 8 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

3-Month Share Buyback Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$19.12
Price
$30.27
GF Value