How to Buy Genmab A/S ADS (GMAB) Stock

Where to buy GMAB

13 brokers in our matrix offer GMAB. Verify availability and current fees with each broker before trading.

Broker	Commission	Fractional	Extended	Overnight	Options	OTC access
Charles Schwab (thinkorswim)Review	$0	Schwab Stock Slices, S&P 500 only, ≥ $5/slice, up to 30 at once		~1,130	$0.65	Most (3/5)
E*TRADE (Morgan Stanley)Review	$0 listed			~20	$0.65	Most (4/5)
FidelityReview	$0	Stocks by the Slice, 7,000+ stocks/ETFs, from $1			$0.65	Partial (2+0)
FirstradeReview	$0	~4,000+ tickers, ≥ $5		~1,200	$0	Most (4/5)
Interactive BrokersReview	$0 (Lite) / per-share (Pro)			~10,000	per-contract pricing	Full
Merrill EdgeReview	$0				$0.65	Most (3/5)
MoomooReview	$0				$0	Limited only
Public.comReview	$0				rebate model	Limited only
RobinhoodReview	$0	≥ $1 stocks, market cap ≥ $25M		~1,134	$0	None
SoFi Active InvestingReview	$0				$0	Partial (1+2)
tastytradeReview	$0 stocks				$1.00 open, $0 close (capped at $10 per leg)	Limited only
TradeStationReview	$0 listed				$0.50 / $0.60	Most (4/5)
WebullReview	$0				$0	Limited only

24-Hour / Overnight trading

GMAB may be eligible for overnight trading via Charles Schwab (thinkorswim), Interactive Brokers, Robinhood, E*TRADE (Morgan Stanley), Webull, Moomoo, Firstrade. Each broker maintains its own eligibility list — confirm before placing an order.

About Genmab A/S ADS

Genmab is a Copenhagen-based biotechnology company specializing in antibody therapeutics for the treatment of cancer. Genmab's proprietary antibody technologies are DuoBody, HexaBody, DuoHexaBody, and HexElect. Johnson & Johnson partnered with Genmab to create Darzalex, which is regarded as the standard of care for multiple myeloma and is Genmab's leading product. Genmab also has Tepezza for thyroid eye disease (partnered with Horizon), Kesimpta for relapsing multiple sclerosis (partnered with Novartis), Rybrevant (partnered with Johnson & Johnson) for non-small cell lung cancer (NSCLC), Tivdak (partnered with Seagen) for cervical cancer, and Epkinly (partnered with AbbVie) for diffuse large B-cell lymphoma. Genmab has several pipeline candidates targeting other oncologic indications.

Employees

3,088

Listed

2010-10-05

Market cap

$16.71B

Frequently asked

Where can I buy Genmab A/S ADS (GMAB)?

GMAB is offered by 13 brokers in our matrix, including Charles Schwab (thinkorswim), E*TRADE (Morgan Stanley), Fidelity, Firstrade, Interactive Brokers. Compare commissions, fractional eligibility, and overnight availability in the broker matrix above.

Can I buy GMAB after hours or overnight?

Yes. GMAB is on the 24-hour eligibility list for Charles Schwab (thinkorswim), Interactive Brokers, Robinhood, E*TRADE (Morgan Stanley), and others. Overnight sessions route through ATSs with wider spreads and limit-orders only.

Does Robinhood offer GMAB?

Yes. Robinhood offers GMAB as a regular exchange-listed security.

Does Fidelity offer GMAB?

Yes. Fidelity offers GMAB as a regular exchange-listed security.

Does Webull offer GMAB?

Yes. Webull offers GMAB as a regular exchange-listed security.

Is GMAB optionable?

Yes. GMAB has listed options contracts. Per-contract pricing varies by broker — see the Options column in the matrix.

Is there a tokenized version of GMAB?

Not in our current dataset. The tokenized stock universe (Kraken xStocks, Binance Alpha/Ondo, Robinhood EU, Hyperliquid HIP-3) is expanding quickly — we refresh quarterly.

Can I buy a fractional share of GMAB?

Yes. Multiple brokers in the matrix support fractional shares for GMAB — see the Fractional column above for per-broker eligibility and minimums.