NASDAQ · ACIU

AC Immune SA (ACIU)

$2.14−5.31%
Close Nov 12, 2026 · split-adjusted
Nov 12, 2026$2.14▼ 34.76% in range
Nov 12, 2025Low $2.06 · High $3.70Nov 12, 2026
What changed · written from our data
As of Nov 12, 2026

AC Immune SA closed at $2.14 on Nov 12, down 5.31%, 42.2% below its 52-week closing high. Volume of 121.8K shares was 0.58× its 20-day average (below normal).

Split-adjusted performance: -10.8% over one month, -23.6% over six months, -36.9% over one year.

Short interest was 2.9M shares at the Oct 30 settlement, down 9.7% from the prior report (3.9% of float, 16.9 days to cover).

Market cap$212.8M99.4M shares
Revenue · quarter——
Diluted EPS——
P/E · TTM—
Net margin—
Dividend yieldNone
52-week range2.06 – 3.70−42.2% from high
Volume121.8K0.58× 20-day avg
Volatility · 60d64.0%Annualised
Short % of float3.9%16.9 days to cover
Net cash$33.8MCash $33.8M
Next earnings—Not scheduled
Split-adjusted performance
1W +1.4%1M −10.8%3M −14.1%6M −23.6%YTD −31.8%1Y −36.9%3Y −21.3%5Y −70.6%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within industry

Not enough peers to rank

6-month momentum—
Revenue growth—
Net margin—
Value (low P/E)—
Size—

Short interest

Details →
Shares short2.9M−9.7% vs prior
Days to cover16.9Settled Oct 30
% of float3.9%
Short vol. 10d52.0%of daily volume

Quick answers

What does AC Immune SA do?
AC Immune SA is a clinical stage biopharmaceutical company advancing a portfolio of programs strategically focused on pioneering Precision Medicine for neurodegenerative diseases. The company uses its proprietary technology platforms to discover, design, and develop novel proprietary small molecules, antibodies, and vaccines for the prevention, diagnosis, and treatment of neurodegenerative diseases associated with protein misfolding.
What is ACIU's market cap?
$212.77M, based on the Nov 12 close of $2.14.
Does AC Immune SA pay a dividend?
No regular cash dividend has been paid in the last year.
How much of ACIU is sold short?
2.9M shares, 3.9% of float, as of Oct 30, 2026.

About AC Immune SA

AC Immune SA is a clinical stage biopharmaceutical company advancing a portfolio of programs strategically focused on pioneering Precision Medicine for neurodegenerative diseases. The company uses its proprietary technology platforms to discover, design, and develop novel proprietary small molecules, antibodies, and vaccines for the prevention, diagnosis, and treatment of neurodegenerative diseases associated with protein misfolding. The company has one segment. The company currently focuses mostly of its resources on discovering and developing therapeutic and diagnostic products targeting misfolded proteins. The company's pipeline consists of ACI-24.060, Crenezumab, ACI-35.030, Semorinemab, ACI-7104.056, and others.

122 employeesListed Sep 23, 2016acimmune.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology