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AC Immune SA

Stage 1 · Basing · week 8

As of Oct 22, 2026, AC Immune SA is in Stage 1, the basing phase, now in week 8 (since Aug 28, 2026). It closed at $2.50, 34.9% below its 52-week high and below its 200-day average, which is falling.

AC Immune SA, a clinical stage biopharmaceutical company, discovers, designs, and develops medicines, and therapeutic and diagnostic products for the prevention and treatment of neurodegenerative dise… More about the company

$2.50
+1.21% today
$249M · Micro cap
Market Neutral — Building

Pro read

Pro

Our read

Basing, not in an uptrend yet

Setup score

—

Momentum

Steady

Edge

—

Is ACIU early, or has it already run? Pro answers that for every US stock we cover, after every close.

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Stage Cycle Timeline2023-08-16 → 2026-10-22
S4 29w
S2 13w
2023-08-162026-10-22
S1S2S3S4Setup score (0–10, dashed line at 5)
S2 7w → S3 9w → S2 11w → S3 6w → S4 8w → S1 2w → S2 8w → S3 3w → S4 11w → S1 1w → S4 29w → S1 12w → S2 13w → S3 3w → S2 7w → S3 9w → S2 2w → S1 1w → S4 13w → S1 8w current
Total tracked: 164 weeks across 20 stage runs.

ACIU among Biotechnology219th of 591 by relative strength

All 591 →
Stocks in Biotechnology ranked by relative strength, with stage and one-month change
#StockStageRS1M
1GTBPStage 2 · wk 799−22.3%
2IOVAStage 2 · wk 1899+38.8%
3SLSStage 3 · wk 499−1.5%
4MRNAStage 2 · wk 1799+11.3%
5TWSTStage 2 · wk 3999−14.5%
6KODStage 2 · wk 499+172.1%
7ERASStage 3 · wk 599+0.7%
8CLYMStage 3 · wk 399−15.8%
…219ACIUStage 1 · wk 846−11.7%
vs 52W High
-34.9%
$2.12 lo$3.84 hi
34.9% below 52W high, far from high
Stock is basing below old highs. A volume-backed breakout to new highs would be the Stage 2 signal to watch.
Stage Maturity
Week 8
1w13w26w
Week 8, base building
How long this stock has been basing. Longer bases can produce stronger breakouts, but the breakout itself is the signal.
vs 200 DMA
-9.5%
200 DMA: $2.76 · sloping down
Stock is testing its 200 DMA as part of the base. Reclaiming and holding above it is a key Stage 2 prerequisite.
Rel Volume
0.38x
vs 50-day avg
Volume in Stage 1 basing is typically quiet. A surge in volume on an upside breakout is the signal to watch.
Trend Health
↓
Short-term trend rolling over
Two reads of momentum. The arrow shows the direction of the short-term trend: rising (↑ or ↗), flat (→) or rolling over (↓). The ⇈ mark appears when our trend model reads the move as gaining speed on top of the longer trend. Strongest when both agree.
1M
-11.7%
3M
+12.1%
6M
-15.8%
YTD
-25.6%
1Y
-10.4%
Scan Membership
Breakout Watch
Latest: 2024-06-24
8 appearances in last 60 days. First seen: 2019-01-08.
A stock that keeps qualifying week after week does so because its Stage 2 structure keeps holding. Staying power in the scan says more about the trend than any single appearance.
Recent Stage Timeline
2026-10-22S1
Wk 8 · Vol 0.38x
2026-10-21S1
Wk 8 · Vol 0.41x
2026-10-20S1
Wk 8 · Vol 0.67x
2026-10-19S1
Wk 8 · Vol 0.42x
2026-10-16S1
Wk 7 · Vol 0.61x
2026-10-15S1
Wk 7 · Vol 0.42x
2026-10-14S1
Wk 7 · Vol 1.01x
2026-10-13S1
Wk 7 · Vol 0.95x
2026-10-12S1
Wk 7 · Vol 0.72x
2026-10-09S1
Wk 6 · Vol 1.31x
2026-10-08S1
Wk 6 · Vol 1.14x
2026-10-07S1
Wk 6 · Vol 0.62x
Moving averages & range
50 DMA
$2.64
200 DMA
$2.76
52W High
$3.84
52W Low
$2.12
5D Low
$2.39
Resistance levels (recent highs)
20d High
$2.81
60d High
$2.93
120d High
$3.05
250d High
$3.84
Next resistance
+12.4%
to 20d High
ROE
-78.5%
Profit margin -246.5%
Dividend Yield
0.00%
P/B 5.8

AC Immune SA: quick answers

What stage is AC Immune SA in?

As of Oct 22, 2026, AC Immune SA (ACIU) is in Stage 1, the basing phase. It entered Stage 1 on Aug 28, 2026 and is in week 8. What the four stages mean

Is AC Immune SA in an uptrend?

Not yet. AC Immune SA is in Stage 1, a base that can come before an uptrend. It trades 9.5% below its 200-day average, which is falling.

How far is AC Immune SA from its 52-week high?

AC Immune SA closed at $2.50 on Oct 22, 2026, 34.9% below its 52-week high of $3.84. Its 52-week low is $2.12.

How has AC Immune SA performed over the past year?

As of Oct 22, 2026, AC Immune SA is down 10.4% over the past year and down 25.6% so far in 2026.

Which sector and industry is AC Immune SA in?

AC Immune SA is in the Biotechnology industry, part of the Health Care sector.

About this companyHealth Care· Biotechnology

AC Immune SA, a clinical stage biopharmaceutical company, discovers, designs, and develops medicines, and therapeutic and diagnostic products for the prevention and treatment of neurodegenerative diseases associated with protein misfolding. The company's SupraAntigen and Morphomer platforms are designed to generate biologics and small molecules, which selectively interact with misfolded proteins that are common in a range of neurodegenerative diseases. It develops Crenezumab, a humanized, conformation specific monoclonal antibody used to slow Alzheimer's disease (AD) progression; and Semorinemab, an investigational monoclonal anti-Tau antibody that targets the N-terminal portion of the Tau protein and is designed to bind to Tau and slow its spread between neurons for the treatment of AD. The company is also developing ACI-24.060 for the treatment of down syndrome related AD; ACI-7104.056 to treat Parkinson's disease; and ACI-35.030, designs to stimulate a patient's immune system to produce antibodies against pathological phosphorylated Tau. In addition, it develops diagnostic programs consisting of PI-2620, a Tau diagnostic for AD, as well as non-AD Tauopathies; and ACI-12589 and ACI-15916, a-sync PET tracer that supports the differential diagnosis of multiple system atrophy from other neurodegenerative diseases. Further, the company is researching and developing Morphomer Tau aggregation inhibitors to evaluate candidates in AD; Morphomer a-syn to compete with small molecule inhibitors of a-syn aggregation; and NeuroOrphan Tauopathies. Additionally, it generates discovery and preclinical stage molecules targeting range of neurodegenerative diseases, which include diagnostics targeting TDP-43, alpha-synuclein, and NLRP3. The company has license agreements and collaborations with Genentech, Inc.; Janssen Pharmaceuticals, Inc.; Life Molecular Imaging SA; and Eli Lilly and Company. AC Immune SA was incorporated in 2003 and is headquartered in Lausanne, Switzerland.

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All analytics based on EOD data. Data as of 2026-10-22. Past data patterns are not indicative of future results. This page is a data analytics tool only.