ZLAB

Zai Lab Limited
NasdaqGMUSDEQUITY Healthcare DELAYED
Last price
25.50
▼ 0.12 (0.47%)
MARKET · —

Price

1D — H — L — Range — Vol —
Drag pan · Pinch zoom · Hold crosshair · pick a tool then drag to draw
Open
26.41
Prev close
25.62
Day high
26.92
Day low
25.51
Volume
1.21M
Market cap
$2.87B
P/E (TTM)
—
52W range
15.96 – 33.97

Day trading desk

Current session · delayed
Gap from prior close
+3.08%
Prior close 25.62
VWAP
25.68
-0.71% from price
Relative volume
3.64×
Unusually busy
Session range
9.88%
24.50 – 26.92
Position in range
41%
Mid range
ATR (14D)
1.15
4.52% of price
Prior day high
25.65
PDH
Prior day low
24.33
PDL
Bid / ask spread
—
Quote not published
Session volume
3.46M
Avg 951.94K

VWAP and the session figures are computed from the delayed intraday series on this page, so they lag the live tape and will not match a broker's real-time VWAP exactly. Turn on Prior day H/L/C, Opening range and Volume profile in the chart's Studies menu to see these levels drawn on price.

Trailing performance

Price return · vs SPY
Returnvs SPY
1W
-1.35% -3.3%
1M
-2.48% -3.6%
3M
+29.52% +25.0%
6M
+21.81% +3.6%
YTD
+45.01% +30.8%
1Y
-24.21% -40.6%
3Y
+5.22% -77.0%
5Y
— —

Price return only. Dividends are not reinvested, so total return on a dividend payer will be higher than shown.

Unusual options activity

Account required
Nothing crossed the thresholds in the expiries we scanned.
That is the normal state — most contracts trade well inside their existing open interest.
Free account required

Contracts trading at or above their open interest, ranked by notional and where the print landed.

Free account

5 more panels on ZLAB open with an account.

Options chains and analytics, valuation ratios, insider filings, analyst targets and ownership. No card, no trial, nothing to cancel.

Insider net activity

6m · Form 4 rollup
Net shares
+586.68K
Net buying
Buy transactions
18
855.04K shares
Sell transactions
16
268.36K shares
Net transactions
+34
Buys less sells
Sell : buy shares
0.3 : 1
Mixed
Insider-held shares
2.38M
Total on file
Bought 855.04KSold 268.36K

Insider transactions

Account required
DateInsiderAction SharesValueHeld
Aug 19, 26
CHEN YAJING
Chief Financial Officer
SELL 260 $7.02K Direct
Aug 14, 26
CHEN YAJING
Chief Financial Officer
— 1.25K — Direct
Aug 12, 26
LIS WILLIAM DAVID
Director
SELL 8.51K $212.65K Direct
Aug 11, 26
CHEN YAJING
Chief Financial Officer
SELL 619 $15.47K Direct
Jul 2, 26
DU YING SAMANTHA
Chief Executive Officer
— 29.05K — Direct
Jul 1, 26
GAYNOR RICHARD BRIAN M.D.
Director
BUY 1.74K $33.07K Direct
Jun 30, 26
DU YING SAMANTHA
Chief Executive Officer
SELL 7.03K $130.22K Direct
Jun 29, 26
DU YING SAMANTHA
Chief Executive Officer
— 17.97K — Direct
Jun 26, 26
EDMONDSON FRAZOR TITUS III
Officer
SELL 4.10K $71.64K Direct
Jun 26, 26
CHEN YAJING
Chief Financial Officer
SELL 2.26K $39.53K Direct
Jun 26, 26
DU YING SAMANTHA
Chief Executive Officer
SELL 24.54K $428.55K Direct
Jun 25, 26
EDMONDSON FRAZOR TITUS III
Officer
— 14.60K — Direct
Jun 25, 26
CHEN YAJING
Chief Financial Officer
— 6.25K — Direct
Jun 25, 26
DU YING SAMANTHA
Chief Executive Officer
— 58.80K — Direct
What this is, and what it is not

These are SEC Form 4 filings — officers, directors and 10% owners reporting their own trades in the company's stock. Filing is due within two business days of the transaction, so this lags reality by days, and the provider adds its own lag on top.

A sale is not automatically bearish. Executives sell on scheduled 10b5-1 plans, to cover tax on vesting equity, and to diversify. Purchases with cash are generally the more informative signal, and they are far rarer.

This does not include congressional or senate trading. That comes from STOCK Act disclosures filed with the Senate eFD system and the House Clerk, which this data source does not carry.

Free account required

Officer and director trades in their own stock, straight from Form 4 filings.

Insider holders

10 reporting
NameRelationShares heldLatest
AMADO RAFAEL
President 57.02K Sale
DIEKMAN JOHN DAVID
Director 122.14K Stock Award(Grant)
DU YING SAMANTHA
Chief Executive Officer 1.22M Conversion of Exercise of derivative security
GAYNOR RICHARD BRIAN M.D.
Director 80.74K Purchase
LEUNG NISA BERNICE WING-YU
Director 96.30K Stock Award(Grant)
MOULDER LEON OLIVER JR.
Director 94.97K Stock Award(Grant)
SMILEY JOSHUA L
President 117.60K Sale
VOUNATSOS MICHEL PERICLES
Director 72.79K Stock Award(Grant)
WIRTH PETER KARL J.D.
Director 416.12K Stock Award(Grant)
YING DU
Chief Executive Officer 526.03K Sale

Fundamentals

TTM · reported
Market cap$2.87B
Enterprise value$2.51B
Revenue (TTM)$449.61M
Gross profit$16.98M
EBITDA$-248.17M
Net income$-188.21M
EPS (TTM)$-1.70
Free cash flow$-83.96M
Total cash$617.52M
Total debt$254.58M
Book value / share$5.41
Shares outstanding112.27M
Float97.11M
Short % of float7.41%
Dividend yield0.00%
Beta (5Y)0.72

Valuation & profitability ratios

Account required
Trailing P/E—
Forward P/E-12.12
PEG ratio—
Price / sales—
Price / book4.73
EV / revenue5.58
EV / EBITDA-10.11
Gross margin3.78%
Operating margin-71.95%
Profit margin-41.86%
Return on equity-26.91%
Return on assets-14.74%
Debt / equity41.94
Current ratio2.13
Free account required

Fourteen ratios including P/E, PEG, EV/EBITDA, margins and return on equity.

Financial statements

As reported · 4 years · 5 quarters
Blank means not reported, not zero
Line item2025202420232022YoY
Total revenue $460.16M$398.99M$266.72M$215.04M +15.3%
Operating revenue $499.21M$425.23M$298.91M$236.38M +17.4%
Cost of revenue $191.08M$147.86M$95.82M$74.02M +29.2%
Gross profit $269.07M$251.13M$170.90M$141.02M +7.1%
Research & development $220.90M$234.50M$265.87M$286.41M -5.8%
Selling, general & admin $277.61M$298.74M$281.61M$258.97M -7.1%
Total operating expense $492.65M$525.08M$545.04M$533.91M -6.2%
Operating income -$223.57M-$273.95M-$374.14M-$392.89M +18.4%
Net interest income $27.84M$34.85M$39.80M$14.58M -20.1%
Pre-tax income -$178.46M-$257.10M-$334.62M-$443.06M +30.6%
Tax provision -$2.93M$0$0$0 —
Net income -$175.54M-$257.10M-$334.62M-$443.29M +31.7%
Net income to common -$175.54M-$257.10M-$334.62M-$443.29M +31.7%
Basic EPS -1.60-2.60-3.50-4.60 +38.5%
Diluted EPS -1.60-2.60-3.50-4.60 +38.5%
EBIT -$173.25M-$254.85M-$334.62M-$443.06M +32.0%
EBITDA -$158.25M-$242.99M-$325.59M-$434.84M +34.9%
Basic shares 109.53M98.95M96.64M95.81M +10.7%
Diluted shares 109.53M98.95M96.64M95.81M +10.7%

Options analytics

Account required
Put / call volume
0.95
Call-heavy session
Put / call open interest
—
Positioning, not flow
Max pain
15.00
-41.4% from spot
ATM implied vol
0.0%
Nearest strike to spot
Skew (10% OTM)
0.0%
Calls bid over puts
Call volume
75
Contracts, this expiry
Put volume
71
Contracts, this expiry
Heaviest call OI
20.00
0 contracts
Heaviest put OI
15.00
0 contracts

Max pain is the strike at which the largest dollar value of open contracts expires worthless. It describes current positioning; it is not a forecast and it moves as open interest changes.

Free account required

Put/call ratios, max pain, implied volatility skew and where open interest is concentrated.

Earnings

History & consensus estimates
Reported vs expected · EPS
QuarterEst.ActualSurprise
Jun 2026 -0.68-0.46 +32.3%
Mar 2026 -0.53-0.46 +12.6%
Dec 2025 -0.42-0.46 -8.5%
Sep 2025 -0.29-0.33 -12.9%
Forward consensus
PeriodEPSAnalystsRevenueGrowth
Current quarter -0.56 6 $108.82M -6.3%
Next quarter -0.62 6 $113.62M -11.0%
Current year -2.20 10 $436.47M -5.1%
Next year -2.11 10 $552.13M +26.5%

Analyst targets & ownership

Account required
Mean target$33.14
High target$50.00
Low target$24.25
Implied upside29.96%
Analyst count12
ConsensusSTRONG BUY
Strong buy / Buy2 / 9
Hold1
Sell / Strong sell0 / 0
Held by insiders2.12%
Held by institutions38.46%
Institutions holding127
Free account required

Price targets, consensus spread, insider and institutional ownership.

Moving averages & technicals

Computed from 2Y daily closes
SMA 10
25.57
-0.27% from price
SMA 20
25.37
+0.81% from price
SMA 50
24.47
+4.52% from price
SMA 100
21.59
+18.10% from price
SMA 200
20.48
+24.91% from price
EMA 12
25.52
-0.07% from price
EMA 26
25.30
+0.78% from price
EMA 50
24.37
+4.62% from price
RSI (14)
52.1
Neutral
MACD (12,26,9)
0.22
Hist -0.13
ATR (14)
1.15
4.50% of price
Realised vol 30D
42.1%
Annualised
Bollinger upper
26.85
20, 2σ
Bollinger lower
23.90
20, 2σ
50 / 200 cross
Golden
24.47 vs 20.48
Trend bias
Above 200
+24.91%

Options chain

Account required
Expiry
Spot 25.50
Calls
StrikeLastBidAskVolOIIV
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
Puts
StrikeLastBidAskVolOIIV
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
Free account required

Every listed expiry, both sides of the book, with volume, open interest and implied volatility.

Risk profile

Daily returns · 1Y window
Beta vs SPY
1.04
More volatile than market
Correlation to SPY
0.27
Largely independent
Realised vol 30D
42.1%
Annualised
Market vol 1Y
13.0%
SPY, annualised
Max drawdown 1Y
-51.6%
Peak to trough
Max drawdown 5Y
-87.0%
Peak to trough
ATR 14
1.15
4.50% of price
Beta (reported)
0.72
5Y monthly, from filing

Short interest

Semi-monthly exchange report · lags by ~2 weeks
Shares short
8.16M
Prior 7.47M
Change vs prior
+9.3%
Shorts adding
% of float
7.41%
Normal
% of shares out
7.27%
Against total outstanding
Days to cover
8.1
Crowded exit
Float
97.11M
Freely tradeable shares

Exchanges publish short interest twice a month with a settlement lag, so this is roughly two weeks behind. Days to cover divides shares short by average daily volume — it estimates how long covering would take, not whether it will happen.

Rating changes

53 on file
DateFirm ActionFromTo
Aug 7, 26 Citigroup MAINTAINED Buy Buy
May 8, 26 Citigroup MAINTAINED Buy Buy
Mar 18, 26 JP Morgan MAINTAINED Overweight Overweight
Feb 27, 26 Cantor Fitzgerald MAINTAINED Overweight Overweight
Feb 5, 26 JP Morgan MAINTAINED Overweight Overweight
Jan 7, 26 UBS INITIATED — Buy
Aug 11, 25 Citigroup MAINTAINED Buy Buy
Jun 30, 25 Leerink Partners MAINTAINED Outperform Outperform
Mar 27, 25 Cantor Fitzgerald MAINTAINED Overweight Overweight
Mar 13, 25 JP Morgan MAINTAINED Overweight Overweight
Mar 7, 25 Scotiabank INITIATED — Sector Outperform
Mar 3, 25 B of A Securities DOWNGRADE Buy Neutral

Dividends & splits

Declared · from the issuer
Forward rate—
Forward yield0.00%
5-year avg yield—
Payout ratio—
Ex-dividend date—
Next pay date—
Last split—
Split date—

PRIVATE STRATEGY · BY QUALIFICATION

The same data. A different seat.

The research you are reading is the input layer for a discretionary options program we run for a small number of qualified investors. Minimum $1,000,000.