Insider buying last 90 days
No open-market insider purchases were filed for ZLAB in the last 90 days.
From Form 4 filings, dated to when each was filed.
Zai Lab draws attention this week around its upcoming presentation of global Phase 1b/1c data for its lung cancer drug zocilurtatug pelitecan at the 2026 ESMO Congress, a DLL3-targeting antibody drug conjugate that is reshaping the company's investment narrative. This sits alongside continued discussion of Q2 2026 results, which showed an 11% sequential increase in net product revenue to $105.8 million and maintained commercial profitability, as the company frames its transition from a China-focused commercial business to a global biopharmaceutical firm. Separately, coverage has compared Zai Lab with peer Cytokinetics (CYTK) on profitability, valuation and ownership.
Zai Lab closed at $24.59, down 1.6% on the day, sitting between its 50-day average of $25.00 and 200-day average of $20.63, with the stock up 27.4% over three months but down 24.8% over the past year. The GekkoIndex reads 60.1, placing the stock in the Accumulation zone. Price sits 12.7% below Gekko Fair Value of $28.18.
The next earnings report is due 5 November 2026 before the open, 24 days away and within a typical 20-trading-day holding window; the prior quarter saw a 26.9% reaction following an EPS beat. No insider, Congress or unusual options activity appears in the recent windows. Seasonally, the next 20 trading days have averaged a 0.7% return over five years, rising in three of them. The ESMO data presentation and the approaching earnings date are both worth noting over this stretch.
Written by AI from the Oct 12, 2026 close and checked automatically against the figures on this page.
Zai Lab scores 3 supportive, 1 mixed and 1 headwind across the 5 checklist items with data.
Six things swing traders check before a 20-day hold, read from the latest data.
3 supportive1 mixed1 headwind
Averages disagree
Close $24.59 sits between the 50-day ($25.00) and 200-day ($20.63) averages, or the averages disagree.
See the chart60.1, Accumulation
Reading 60.1 is in the Accumulation zone.
See the GekkoIndex12.7% below
Price is 12.7% below Gekko Fair Value (more than 5% below).
See fair valueNo data
No insider, Congress or unusual options activity in the window.
See smart moneyReports in 24 days
Reports on Nov 5, 2026, 24 days away — inside a typical 20-trading-day hold.
See earnings+0.7% on average
From this point in the calendar, the next 20 trading days averaged +0.7% over 5 years, rising in 3 of them.
See seasonalityA description of current data, not a recommendation. How this page works
Zai Lab closed at $24.59 on Oct 12, 2026, −24.8% over the past year, inside a 52-week range of $15.96 to $32.76.
Use the left and right arrow keys to read daily values.
Put ZLAB on a Gekko watchlist and see its GekkoIndex, Gekko Fair Value and smart money signals update on the chart as they change.
Zai Lab works in biopharmaceuticals, with activities concentrated in Mainland China and Hong Kong. The company researches, develops and brings to market medical treatments across oncology, autoimmune disease, infectious disease and neurological conditions. It currently markets several products, among them Zejula, a PARP inhibitor taken once daily; Optune, a device using tumor treating fields; NUZYRA, used against certain bacterial skin infections and pneumonia; and Qinlock, used for gastrointestinal stromal tumors.
Alongside these marketed therapies, Zai Lab runs a wide pipeline of experimental treatments addressing cancers, infections and neurological or psychiatric disorders, including candidates aimed at lymphomas, lung and gastric cancers, EGFR-driven tumors, and serious bacterial infections, among others still in development.
Zai Lab was founded in 2013 and is headquartered in Shanghai, China. Its shares trade under the ticker ZLAB.
Zai Lab’s GekkoIndex — Gekko’s 0 to 100 smart money score — reads 60.1, in the Accumulation zone, up 3 points over five sessions.
Up 3 points over five sessions, from the Neutral zone.
Reading for Oct 12, 2026
| Zone | Readings | 5 days | 20 days | ||
|---|---|---|---|---|---|
| Buying | 4 | Too few readings yet | |||
| Accumulation (current zone) | 41 | +4.6% | +14.4% | ||
| Neutral | 77 | +0.3% | +2.6% | ||
| Distribution | 14 | −1.1% | −5.1% | ||
| Selling | 3 | Too few readings yet | |||
Average ZLAB share-price change over the trading days after each daily reading in its GekkoIndex history. Across every stock Gekko tracks, Accumulation readings averaged +2.2% over 20 days. Past behaviour doesn’t guarantee future results.
Accumulation zone: Institutional interest building. About the five zones →
Zai Lab trades 12.7% below Gekko Fair Value of $28.18, so the shares are undervalued on Gekko’s estimate.
Gekko’s own estimate of what Zai Lab shares are worth, recalculated every trading day.
$28.18
Gekko Fair Value, Oct 10, 2026
12.7% Undervalued
At the end of Aug 2026 the price was 12.3% below the estimate.
No open-market insider purchases were filed for Zai Lab, and no Congress trades were disclosed, in the last 90 days.
Plus buybacks, unusual options and fund positions, each dated to when it became public.
No open-market insider purchases were filed for ZLAB in the last 90 days.
From Form 4 filings, dated to when each was filed.
No trades in ZLAB were disclosed by members of Congress in the last 90 days.
From congressional disclosures, which report amounts as ranges.
Zai Lab has been buying back its own shares.
From company filings.
0of the funds Gekko tracks hold ZLAB.
Zai Lab reports on Nov 5, 2026, before the open (24 days away), and beat the EPS estimate in 3 of its last 8 reports.
Nov 5, 2026
Expected before the open, 24 days away
| Reported | EPS | Revenue | Move |
|---|---|---|---|
| Aug 6, 2026 | −$0.46 est −$0.66 | $106.3M est $103.9M | +26.9% |
| May 7, 2026 | −$0.46 est −$0.29 | $99.61M est $108.4M | −11.5% |
| Feb 26, 2026 | −$0.46 est −$0.44 | $127.6M est $122.2M | −0.9% |
| Nov 6, 2025 | −$0.33 est −$0.28 | $116.1M est $126.7M | −11.7% |
| Aug 7, 2025 | −$0.37 est −$0.37 | $110.0M est $150.2M | −9.7% |
| May 8, 2025 | −$0.45 est −$0.50 | $106.5M est $112.6M | +3.1% |
| Feb 27, 2025 | −$0.80 est −$0.61 | $109.1M est $109.3M | −1.2% |
| Nov 12, 2024 | −$0.42 est −$0.75 | $102.3M est $108.9M | −3.7% |
“Move” is the close of the first session after the report compared with the close of the last session before it, so it reads the same whether the company reported before the open or after the close.
Analysts’ average 12-month price target for Zai Lab is $33.14, +34.8% from the last close, from 1 firm rating the stock in the last 90 days.
Each firm’s latest rating in the last 90 days: 1 firm.
| Date | Firm | Target | vs price |
|---|---|---|---|
| Sep 1 | J.P. Morgan | $36 | +46.4% |
| Aug 27 | J.P. Morgan | $36 | +46.4% |
Gekko doesn’t publish price predictions. These are analyst targets and historical base rates, which don’t guarantee future results.
Over the next 20 trading days from Oct 10, Zai Lab averaged +0.7% across the last 5 years, rising in 3 of them.
| Window | Average | Years higher |
|---|---|---|
| Next 5 trading days | −0.6% | 2 of 5 |
| Next 10 trading days | −2.8% | 3 of 5 |
| Next 15 trading days | −1.6% | 3 of 5 |
| Next 20 trading days | +0.7% | 3 of 5 |
| Next 30 trading days | −5.4% | 3 of 5 |
For scale, ZLAB’s typical 20-trading-day move in either direction is about 12.8%.
Zai Lab’s market cap is $2.78B and revenue of $449.6M over the last twelve months.
Coverage of Zai Lab this week reads neutral: 2 positive, 3 neutral and 0 negative headlines.
Zai Lab’s market cap is $2.78B at the Oct 12, 2026 close of $24.59, with 112.3M shares outstanding.
The consensus analyst 12-month price target for Zai Lab is $33.14, +34.8% from the last close. Of the 1 firm that rated the stock in the last 90 days, 1 rate it a buy, 0 a hold and 0 a sell. Gekko doesn’t publish price predictions of its own.
On Gekko’s estimate Zai Lab is undervalued: the Oct 12, 2026 close of $24.59 is 12.7% below Gekko Fair Value of $28.18. Gekko Fair Value is recalculated every trading day, and a gap inside 5% either way counts as about fair value.
Zai Lab is expected to report on Nov 5, 2026, before the market opens (24 days away). Analysts expect earnings of −$0.56 per share on revenue of $108.8M. Zai Lab beat the earnings estimate in 3 of its last 8 reports, moving 8.6% on average across the report.
Zai Lab’s 52-week high is $32.76 and its 52-week low is $15.96; it closed at $24.59 on Oct 12, 2026, −24.8% over the past year. Over the last five years the shares peaked at $105.85 on Oct 27, 2021.
Gekko describes the data; it does not make buy or sell recommendations. On the swing-trade checklist, 3 of the 5 items with data read as supportive (gekkoindex, fair value and seasonality), 1 as mixed (trend) and 1 as a headwind (earnings risk). The checklist is a description of current data, not a recommendation.
During US trading hours the price at the top of the page is a delayed quote, refreshed every 15 minutes; everything else is rebuilt after each US market close. The GekkoIndex, Gekko Fair Value and the checklist are Gekko’s own, and the Gekko Brief is written by AI from this page’s data and checked against it before it is published. How Gekko’s data works →
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