Skip to main content
Assets
Argen-X logo
ARGX.BRU
Argen-X
Health Care · Biotechnology

argenx SE, a commercial-stage biopharma company, develops various therapies for the treatment of autoimmune diseases in the United States, Japan, China, the Netherlands, and internationally.

HQ: NetherlandsListed: Belgium

Historical AI Opinions

Audit every published iPulse AI forecast batch and immutable historical research document for Argen-X.

Argen-X (ARGX.BRU) AI OPINIONS & ADVISOR ANALYSIS

Read and compare the 14 individual AI Advisor deep-dive reports, including their forecast paths, ratings, price targets, and reasoning.

Updated on 20 September 2026Deep analysis 20 September 2026

25 min readAudit All Past Forecasts

1. Investment Thesis — Base Case

The central tension is that argenx is simultaneously a superb business and an expensive share. Verified earnings power of roughly $26 per ADS against a $1,000 quote means investors already pay about 38-40x for a franchise whose growth is real but whose pricing and competitive environment tighten from 2028 [5][11]. The base case resolves this not through a dramatic re-rating but through earnings arithmetic: labels broaden, the paid-for commercial infrastructure absorbs them, and profit compounds faster than the multiple contracts. Returns therefore approximate mid-teens earnings growth minus several points of annual de-rating, delivered with biotech-grade volatility around binary readouts.

  • Product net sales compounding from roughly $6 billion in 2026 toward $12-14 billion by 2031.
  • Multiple drifting from about 38x toward 22-25x as growth normalises, capping price appreciation near earnings growth.
  • Implied 2031 equity value near $115-125 billion, demanding sustained double-digit volume gains rather than price increases.

Historical prices and published forecast

Historical prices and published forecastObserved prices and the selected advisor's published projection share a split-adjusted price basis. Prices after the forecast start are later observations, not information known at publication. Forecasts are uncertain. Values in EUR.103.9484.46865.021.25K1.63KSep 2021Mar 2024Sep 2026Mar 2029Sep 2031Forecast starts
  • Observed price
  • Published advisor forecast
Observed prices and the selected advisor's published projection share a split-adjusted price basis. Prices after the forecast start are later observations, not information known at publication. Forecasts are uncertain. Values in EUR.
View chart values
Historical prices and published forecast — published chart values
SeriesDateValue (EUR)
Observed price2021-09-16276
Observed price2021-09-28258
Observed price2021-10-26245
Observed price2021-10-30262
Observed price2021-11-03279
Observed price2021-11-23244
Observed price2021-11-27247
Observed price2021-12-17280
Observed price2021-12-29311
Observed price2022-01-10270
Observed price2022-01-14255
Observed price2022-01-26231
Observed price2022-02-07247
Observed price2022-02-11257
Observed price2022-03-07243
Observed price2022-03-23280
Observed price2022-03-27275
Observed price2022-04-08305
Observed price2022-04-20299
Observed price2022-04-28271
Observed price2022-05-14291
Observed price2022-05-30300
Observed price2022-06-07301
Observed price2022-06-27352
Observed price2022-07-05368
Observed price2022-07-13358
Observed price2022-08-02354
Observed price2022-08-14369
Observed price2022-08-22392
Observed price2022-09-07374
Observed price2022-09-11389
Observed price2022-09-23356
Observed price2022-10-13355
Observed price2022-10-25390
Observed price2022-11-02381
Observed price2022-11-14354
Observed price2022-11-22361
Observed price2022-11-30390
Observed price2022-12-16366
Observed price2022-12-28351
Observed price2023-01-13367
Observed price2023-01-29348
Observed price2023-02-02344
Observed price2023-02-14350
Observed price2023-02-26347
Observed price2023-03-06323
Observed price2023-03-26333
Observed price2023-04-07350
Observed price2023-04-19344
Observed price2023-05-05365
Observed price2023-05-09363
Observed price2023-05-21387
Observed price2023-06-06377
Observed price2023-06-18363
Observed price2023-07-12338
Observed price2023-07-16388
Observed price2023-07-24481
Observed price2023-08-05448
Observed price2023-08-17454
Observed price2023-09-02478
Observed price2023-09-18489
Observed price2023-09-26468
Observed price2023-10-16475
Observed price2023-10-20451
Observed price2023-10-28441
Observed price2023-11-05462
Observed price2023-11-17450
Observed price2023-11-29408
Observed price2023-12-15424
Observed price2023-12-23339
Observed price2024-01-08366
Observed price2024-01-20335
Observed price2024-02-01351
Observed price2024-02-09374
Observed price2024-02-25378
Observed price2024-02-29343
Observed price2024-03-20326
Observed price2024-03-24368
Observed price2024-04-13356
Observed price2024-04-17340
Observed price2024-05-07366
Observed price2024-05-19337
Observed price2024-05-27338
Observed price2024-06-16356
Observed price2024-06-20363
Observed price2024-07-10423
Observed price2024-07-18426
Observed price2024-07-30465
Observed price2024-08-07458
Observed price2024-08-11483
Observed price2024-08-31468
Observed price2024-09-08496
Observed price2024-10-02496
Observed price2024-10-10480
Observed price2024-10-18505
Observed price2024-11-07554
Observed price2024-11-19545
Observed price2024-12-01590
Observed price2024-12-09583
Observed price2024-12-17608
Observed price2024-12-29597
Observed price2025-01-14654
Observed price2025-02-03635
Observed price2025-02-11619
Observed price2025-02-19619
Observed price2025-03-07555
Observed price2025-03-11523
Observed price2025-03-19564
Observed price2025-04-12508
Observed price2025-04-24532
Observed price2025-05-02572
Observed price2025-05-14487
Observed price2025-05-22518
Observed price2025-06-03507
Observed price2025-06-15489
Observed price2025-07-05466
Observed price2025-07-09475
Observed price2025-07-29518
Observed price2025-08-02588
Observed price2025-08-14552
Observed price2025-08-26599
Observed price2025-09-11650
Observed price2025-09-27614
Observed price2025-10-09686
Observed price2025-10-13687
Observed price2025-10-21720
Observed price2025-11-06727
Observed price2025-11-22797
Observed price2025-12-04785
Observed price2025-12-20732
Observed price2025-12-24720
Observed price2026-01-05684
Observed price2026-01-17685
Observed price2026-01-25717
Observed price2026-02-22716
Observed price2026-03-02649
Observed price2026-03-10639
Observed price2026-03-22584
Observed price2026-03-30613
Observed price2026-04-15710
Observed price2026-05-01667
Observed price2026-05-13696
Observed price2026-05-17680
Observed price2026-06-06764
Observed price2026-06-14765
Observed price2026-06-30811
Observed price2026-07-04825
Observed price2026-07-16750
Observed price2026-08-01737
Observed price2026-08-17855
Observed price2026-08-21902
Observed price2026-09-10856
Observed price2026-09-18871
Observed price2026-09-24835
Observed price2026-09-25845
Published advisor forecast2026-09-18871
Published advisor forecast2026-12-18906
Published advisor forecast2027-03-18933
Published advisor forecast2027-06-18896
Published advisor forecast2027-09-18950
Published advisor forecast2027-12-18988
Published advisor forecast2028-03-181,018
Published advisor forecast2028-06-181,068
Published advisor forecast2028-09-181,015
Published advisor forecast2028-12-181,076
Published advisor forecast2029-03-181,119
Published advisor forecast2029-06-181,152
Published advisor forecast2029-09-181,199
Published advisor forecast2029-12-181,258
Published advisor forecast2030-03-181,296
Published advisor forecast2030-06-181,244
Published advisor forecast2030-09-181,307
Published advisor forecast2030-12-181,359
Published advisor forecast2031-03-181,400
Published advisor forecast2031-06-181,456
Published advisor forecast2031-09-181,499

2. Scenarios & Signals

Bull case

The bull case activates when the platform stops being one molecule. A clean empasiprubart MMN win in Q4 2026, followed by myositis and ocular MG approvals and a 2027 autoinjector launch, converts argenx into a multi-franchise immunology engine. Each new label reuses paid infrastructure, so pushes past 40% while revenue doubles, and the multiple holds instead of compressing. Tariff exposure resolves via an MFN or onshoring agreement. That combination roughly doubles the base-case outcome.

Bear case

The bear case begins where the dependency lives: one molecule, one price. If EPIC data narrow the clinical gap to nipocalimab while an MFN pricing agreement resets US net revenue per patient, gross-to-net erosion meets slowing new-patient share just as R&D spending peaks. stalls near 25%, earnings growth halves, and a 38x multiple collapses toward 18x on lower numbers. A safety signal on top would compound the damage into a durable de-rating.

Current crowd narrative

The consensus treats argenx as European biotech's one certain : eighteen straight growth quarters, a pipeline-in-a-product, and sell-side targets averaging $1,179 against roughly $1,000 [9]. The anchoring bias is extrapolation of the 60% sales growth rate, with tariffs, MFN pricing and nipocalimab filed under 'manageable'. Morningstar's fairly-valued verdict is the quiet dissent nobody quotes [13].

Alpha-gap assessment

The crowd modestly underestimates these shares, but the gap is narrower than the bulls claim. Two pieces of evidence point the same way: screened datasets circulate a TTM revenue figure near $7.6 billion and a 26.7x P/E, when the filing supports about $5.2 billion and roughly 38-40x [3][5]. So the stock is more expensive than casual screens show, yet the operating-leverage slope, 32% margin from 21% in one year, is steeper than sell-side models assume [7][8]. Net: earnings-led upside, not re-rating.

Convergence catalyst

The empasiprubart MMN registrational readout guided for Q4 2026 is the trigger: a win breaks the single-asset dependency that caps the multiple. First observable sign of repricing would be sell-side models adding a second franchise line ahead of the March 2027 full-year report.

Complete advisor preview locked

Unlock this report and every AI Advisor

Sign in to check your access, or upgrade to the Base plan to read this report and open every advisor.