Join

Compare · ARGX vs OPT

ARGX vs OPT

Side-by-side comparison of argenx SE (ARGX) and Opthea Limited (OPT): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both ARGX and OPT operate in Biotechnology: Biological Products (No Diagnostic Substances) (Health Care), so they compete in similar markets.
  • ARGX is the larger of the two at $50.47B, about 160.5x OPT ($314.4M).
  • Over the past year, ARGX is up 46.5% and OPT is up 0.0% - ARGX leads by 46.5 points.
  • ARGX has hit the wire 6 times in the past 4 weeks while OPT has been quiet.
  • ARGX has more recent analyst coverage (25 ratings vs 6 for OPT).
PerformanceARGX-1.11%OPT+0.00%
2025-12-16+0.00%2026-06-04
MetricARGXOPT
Company
argenx SE
Opthea Limited
Price
$841.61+3.53%
$3.30+1.54%
Market cap
$50.47B
$314.4M
1M return
+5.84%
+0.00%
1Y return
+46.52%
+0.00%
Industry
Biotechnology: Biological Products (No Diagnostic Substances)
Biotechnology: Biological Products (No Diagnostic Substances)
Exchange
NASDAQ
NASDAQ
IPO
2017
2020
News (4w)
6
0
Recent ratings
25
6
ARGX

argenx SE

argenx SE, a clinical-stage biotechnology company, focuses on developing antibody-based therapies for the treatment of autoimmune diseases, hematology, and cancer. It is developing its lead product candidate, efgartigimod, for the treatment of patients with myasthenia gravis; immune thrombocytopenia in Phase III; pemphigus vulgaris in Phase III; chronic inflammatory demyelinating polyneuropathy in Phase III; and ENHANZE SC in pre-clinical stages. The company is also developing cusatuzumab in Phase II clinical stage in hematological cancer indications; ARGX-117 in phase I clinical trial with therapeutic potential in both orphan and large autoimmune inflammatory diseases; and preclinical products, including ARGX-118 for airway inflammation. Its partnered product candidates include ARGX-112 for treating skin inflammation, ARGX-116 for the treatment of dyslipidemia, and ARGX-115 for cancer immunotherapy, which are in Phase I clinical stages; and ARGX-114 for treating fibrosisand ARGX-119 for treating neuromuscular indications, which are in preclinical stage. The company has strategic partnership with AbbVie S.À.R.L. and LEO Pharma A/S; and collaboration agreement with Cilag GmbH International, Staten Biotechnology B.V., and Shire International GmbH. argenx SE was incorporated in 2008 and is based in Breda, the Netherlands.

OPT

Opthea Limited

Opthea Limited, a clinical stage biopharmaceutical company, develops and commercializes therapies primarily for eye disease in Australia. The company's development activities are based on the intellectual property portfolio covering Vascular Endothelial Growth Factors (VEGF) VEGF-C, VEGF-D, and VEGF Receptor-3 for the treatment of diseases associated with blood and lymphatic vessel growth, as well as vascular leakage. Its lead asset is OPT 302, a soluble form of VEGFR 3 in clinical development as a novel therapy for wet neovascular age related macular degeneration and diabetic macular edema DME, as well as a first in class VEGF C/D inhibitors for treatment with VEGF A inhibitors for the treatment of wet neovascular AMD and other retinal diseases. The company was formerly known as Circadian Technologies Limited and changed its name to Opthea Limited in December 2015. Opthea Limited was incorporated in 1984 and is based in South Yarra, Australia.