AC Immune SA (ACIU) AI Stock Analysis

NASDAQ: ACIUAI research summary: business, growth, valuation, analysts, bull and bear case.

ACIU AI stock analysis summary

AI Research

AC Immune SA (NASDAQ: ACIU) is a clinical-stage biopharmaceutical company developing therapies and diagnostics for neurodegenerative diseases. Revenue has varied significantly between $944,000 in FY2021 and $27.3M in FY2024, falling to $3.6M in FY2025. As of June 30, 2026, the company held $75.4M in cash and short-term investments against $4.1M in total debt.

Market cap
$237.6M
Revenue (TTM)
$17.5M
P/E
—
fwd 16.6x
1Y return
-19.3%
S&P 500 16.8%
Avg. target
$8.64
261.4% vs last close

Bull case

  • Analyst estimates project revenue to increase 377.9% to $89.2M in the next fiscal year, alongside expected EPS turning positive to $0.50.
  • AC Immune maintains a net cash position of $71.3M, supported by $75.4M in cash and short-term investments against $4.1M in debt as of June 30, 2026.
  • All 4 covering analysts rate the stock a Strong Buy, with a mean price target of $8.64 representing 261.4% above the $2.39 close.

Bear case

  • Revenue dropped 86.9% in FY2025 to $3.6M, contributing to a 5-year revenue CAGR of -25.4% from FY2020 to FY2025.
  • The business consumed cash in FY2025, generating -$66.1M in operating cash flow and a net loss of -$70.4M.
  • ACIU stock has declined 61.3% over the past 5 years and trades 14.1% below its 200-day moving average.

What AC Immune does

AC Immune SA is a clinical-stage biopharmaceutical company headquartered in Lausanne, Switzerland. It specializes in discovering, designing, and developing medicines and diagnostics targeting neurodegenerative diseases tied to protein misfolding. Using its SupraAntigen and Morphomer platforms, the company creates vaccines, antibodies, and small molecules. Its pipeline includes Crenezumab, an antibody in Phase II prevention trials for Alzheimer's disease, as well as Phase II anti-Abeta vaccine candidate ACI-24 and anti-Tau vaccine candidate ACI-35. AC Immune also researches small molecule Tau aggregation inhibitors and diagnostic candidates targeting proteins such as TDP-43, alpha-synuclein, and NLRP3. It works with partners including Genentech, Biogen, Janssen Pharmaceuticals, Eli Lilly, Life Molecular Imaging, and WuXi Biologics.

Growth and profitability

AC Immune generates irregular revenue typical of clinical-stage biotechs. Annual revenue rose from $944,000 in FY2021 to $3.9M in FY2022, $14.8M in FY2023, and peaked at $27.3M in FY2024 before falling 86.9% to $3.6M in FY2025. Over the 5-year period from FY2020 to FY2025, revenue posted a CAGR of -25.4%. Net income remained negative in every period shown, including -$70.4M in FY2025 with an EPS of -$0.70. Research and development expenses were $56.4M in FY2025. Over the trailing twelve months ended June 30, 2026, revenue stood at $17.5M with a net profit margin of -246.5%, though quarterly revenue grew 1057.2% year-over-year in the latest quarter.

ACIU income statement →

Balance sheet and cash flow

As of June 30, 2026, AC Immune reported $75.4M in cash and short-term investments alongside total debt of $4.1M, yielding net cash of $71.3M. Total assets were $150.4M against shareholders' equity of $35.2M. The company's current ratio was 0.93 and debt-to-equity stood at 0.12. Operating cash flow was -$66.1M in FY2025, leading to free cash flow of -$67.0M after capital expenditures of $859,541. Over 5 years, the company's share count increased 24.5%.

ACIU balance sheet →

Valuation and performance

AC Immune closed at $2.39 on October 16, 2026, with a market capitalization of $237.6M and an enterprise value of $194.6M. The stock traded at a forward P/E of 16.6x, compared to 17.3x for the median of its US-listed Healthcare peers. Its price-to-sales multiple was 13.6x, above the sector median of 4.1x, while its price-to-book ratio stood at 6.6x and EV-to-revenue was 9.1x. Over the past year, ACIU returned -19.3%, trailing the S&P 500 (SPY) return of 16.8%, and over five years it returned -61.3% versus 83.0% for the index.

ACIU key metrics →

What analysts expect

Wall Street analysts hold 4 Strong Buy ratings on AC Immune, with 0 Buy, Hold, Sell, or Strong Sell ratings. The mean price target is $8.64, representing 261.4% upside versus the last close of $2.39. For the fiscal year ending December 31, 2026, analysts estimate an EPS of -$0.41 and revenue of $18.7M. For the following fiscal year, 3 analysts project revenue of $89.2M and an EPS of $0.50. The company beat EPS estimates in 3 of the last 4 quarters, with its next earnings date scheduled for November 3, 2026.

ACIU forecast and price target →

Key risks and what to watch

  • Liquidity remains limited with a current ratio of 0.93 as of June 30, 2026, while the company burned $67.0M in free cash flow during FY2025.
  • Shareholder dilution has been persistent, with share count increasing 24.5% over the 5-year period.
  • High volatility is indicated by a beta of 1.55, with short interest representing 7.6% of the float.
  • Annual R&D spending reached $56.4M in FY2025, creating ongoing dependency on partnership milestones or external capital.

AI-generated research summary. Written with AI from Quotelinks data as of October 16, 2026 and checked so every figure matches that data. For information only, not investment advice. Disclaimer

About this ACIU AI stock analysis

This page is an AI-written research summary of AC Immune SA (ACIU). The text was generated on October 30, 2026 from Quotelinks data as of October 16, 2026 (company profile, annual results, latest balance sheet, valuation, price performance and analyst estimates). An automatic check rejects any draft that contains a figure not found in that data. It is not investment advice; verify figures on the linked tabs before making decisions.

Related: ACIU income statement, ACIU balance sheet, ACIU key metrics, ACIU analyst forecast, ACIU chart. See the ACIU stock overview for the latest quote and news.

ACIU AI stock analysis FAQ

Does AC Immune pay a dividend?

No, AC Immune does not pay a dividend. The company directs its capital toward research and clinical development.

What are AC Immune's lead clinical candidates?

AC Immune's lead pipeline assets include Crenezumab, a monoclonal antibody in Phase II prevention trials for Alzheimer's disease, ACI-24 in Phase II studies, and ACI-35, which completed Phase Ib trials.

When does AC Immune report earnings next?

AC Immune's next earnings report is scheduled for November 3, 2026.

Who owns AC Immune shares?

Company insiders own 38.1% of AC Immune, while institutional investors hold 24.3%. Short interest accounts for 7.6% of the float.

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