NASDAQ:ACIU AC Immune (ACIU) Stock Price, News & Analysis $2.63 -0.05 (-1.87%) Closing price 09/18/2026 04:00 PM EasternExtended Trading$2.64 +0.00 (+0.19%) As of 09/18/2026 07:30 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsInsider TradesNews and TrendsOptions ChainOwnershipSEC FilingsShort Interest About AC Immune Stock (NASDAQ:ACIU) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get AC Immune alerts:Sign Up Key Stats Today's Range$2.63▼$2.8150-Day Range$2.18▼$2.9352-Week Range$2.10▼$4.00Volume68,460 shsAverage Volume167,657 shsMarket Capitalization$267.66 millionP/E RatioN/ADividend YieldN/APrice Target$7.50Consensus RatingModerate Buy Company Overview AC Immune SA (NASDAQ: ACIU) is a clinical-stage biopharmaceutical company headquartered in Lausanne, Switzerland. Founded in 2003, the company develops precision medicines and diagnostic products designed to prevent, diagnose and treat neurodegenerative diseases, including Alzheimer’s disease, Parkinson’s disease and other conditions associated with misfolded proteins. AC Immune’s research is based on its SupraAntigen and Morphomer technology platforms, which are intended to identify disease-related proteins and generate therapies or diagnostic tools that target them. Its pipeline has included vaccine and antibody-based approaches aimed at amyloid-beta and tau, as well as programs addressing other proteins linked to neurodegeneration. The company has also pursued collaborations with larger pharmaceutical companies to advance selected candidates. AC Immune serves the global biopharmaceutical and healthcare markets through research and development conducted primarily in Switzerland and through international partnerships and clinical studies. Andrea Pfeifer has served as the company’s chief executive officer and has been associated with its leadership since its early development.AI Generated. May Contain Errors. Read More AC Immune Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks45th Percentile Overall ScoreACIU MarketRank™: AC Immune scored higher than 45% of companies evaluated by MarketBeat, and ranked 572nd out of 897 stocks in the healthcare sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.9 / 5Analyst RatingModerate Buy Consensus RatingAC Immune has received a consensus rating of Moderate Buy. The company's average rating score is 2.50, and is based on no strong buy ratings, 3 buy ratings, no hold ratings, and 1 sell rating.Upside PotentialAC Immune has a consensus price target of $7.50, representing about 185.2% upside from its current price of $2.63.Amount of Analyst CoverageAC Immune has only been the subject of 3 research reports in the past 90 days.Read more about AC Immune's stock forecast and price target. Earnings and Valuation0.6 / 5Proj. Earnings GrowthGrowing Earnings GrowthEarnings for AC Immune are expected to grow in the coming year, from ($0.60) to $0.17 per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of AC Immune is -4.87, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of AC Immune is -4.87, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Book Value per Share RatioAC Immune has a P/B Ratio of 4.87. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.Read more about AC Immune's valuation and earnings. Short Interest2.0 / 5Short Interest LevelBearish Percentage of Shares Shorted3.39% of the float of AC Immune has been sold short.Short Interest Ratio / Days to CoverAC Immune has a short interest ratio ("days to cover") of 14.99, which indicates bearish sentiment.Change versus previous monthShort interest in AC Immune has recently decreased by 3.22%, indicating that investor sentiment is improving. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldAC Immune does not currently pay a dividend.Dividend GrowthAC Immune does not have a long track record of dividend growth. News and Social Media1.3 / 5News SentimentN/A Search Interest3 people have searched for ACIU on MarketBeat in the last 30 days. This is an increase of 200% compared to the previous 30 days.MarketBeat Follows1 people have added AC Immune to their MarketBeat watchlist in the last 30 days. Company Ownership0.8 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, AC Immune insiders have not sold or bought any company stock.Percentage Held by Insiders4.60% of the stock of AC Immune is held by insiders.Percentage Held by Institutions51.36% of the stock of AC Immune is held by institutions. High institutional ownership can be a signal of strong market trust in this company.Read more about AC Immune's insider trading history. Receive ACIU Stock News and Ratings via Email Sign-up to receive the latest news and ratings for AC Immune and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. 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ACIU Stock News HeadlinesAC Immune Calls October EGM to Add Veteran Biopharma Financier Tom Graney to BoardSeptember 3, 2026 | tipranks.comAC Immune’s New Phase 1 NLRP3 Trial Puts Inflammation Strategy in FocusSeptember 2, 2026 | tipranks.comTrump goes "all-in" on Grand Canyon energy breakthroughA drilling crew near the Grand Canyon uncovered a clean energy well producing nearly eight times the output of Saudi Arabia's largest oil field, with potential to last two million years. While the One Big Beautiful Bill Act eliminated federal credits for solar, wind, and EVs, this energy source was reclassified alongside oil and nuclear power and given eight years of tax credits. Google signed a 15-year contract, and Bill Gates committed $100 million. One company controls the entire supply chain behind this discovery.September 20 at 1:00 AM | Behind the Markets (Ad)Analysts Offer Insights on Healthcare Companies: AC Immune SA (ACIU) and Gilead Sciences (GILD)August 22, 2026 | theglobeandmail.comAC Immune shares rise after encouraging early phase 1 data for ACI-19764August 20, 2026 | msn.comAC Immune Says Early Data from Anti-Inflammatory Drug Gives Wider Clinical Momentum for PipelineAugust 20, 2026 | benzinga.comAC Immune posts positive first‑in‑human data for NLRP3 inhibitor ACI‑19764August 20, 2026 | tipranks.comAC Immune Announces Positive Preliminary Phase 1 Data for NLRP3 Inhibitor ACI-19764August 20, 2026 | globenewswire.comSee More Headlines ACIU Stock Analysis - Frequently Asked Questions How have ACIU shares performed this year? AC Immune's stock was trading at $3.14 at the start of the year. Since then, ACIU stock has decreased by 16.2% and is now trading at $2.63. How were AC Immune's earnings last quarter? AC Immune (NASDAQ:ACIU) posted its quarterly earnings results on Thursday, August, 6th. The company reported $0.03 earnings per share for the quarter, beating the consensus estimate of ($0.10) by $0.13. The company earned $18.67 million during the quarter, compared to analyst estimates of $9.59 million. AC Immune had a negative trailing twelve-month return on equity of 100.17% and a negative net margin of 245.32%. When did AC Immune IPO? AC Immune (ACIU) raised $72 million in an initial public offering on Friday, September 23rd 2016. The company issued 6,000,000 shares at a price of $11.00-$13.00 per share. Credit Suisse, Jefferies and Leerink Partners acted as the underwriters for the IPO. Who are AC Immune's major shareholders? Top institutional investors of AC Immune include AXQ Capital LP (0.01%). View institutional ownership trends. How do I buy shares of AC Immune? Shares of ACIU stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of AC Immune own? Based on aggregate information from My MarketBeat watchlists, some other companies that AC Immune investors own include Meta Platforms (META), NVIDIA (NVDA), Corbus Pharmaceuticals (CRBP), Sorrento Therapeutics (SRNE), Tesla (TSLA), Advanced Micro Devices (AMD) and Canopy Growth (CGC). Company Calendar Last Earnings8/06/2026Today9/20/2026Next Earnings (Estimated)11/03/2026Fiscal Year End12/31/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Yellow Zone (1w+) 1-Year History Sep 25 Dec 25 Mar 26 Jun 26 Sep 26 For the last 12 days, ACIU's financial health has been in the Yellow zone, according to TradeSmith. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology Current SymbolNASDAQ:ACIU CIK1651625 Webwww.acimmune.com Phone(121) 345-9121Fax41-21-345-9120Employees106Year Founded2003Price Target and Rating Average Price Target for AC Immune$7.50 High Price Target$8.00 Low Price Target$7.00 Potential Upside/Downside+185.2%Consensus RatingModerate Buy Rating Score (0-4)2.50 Research Coverage4 Analysts Profitability EPS (Trailing Twelve Months)($0.54) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$85.03 million Net Margins-245.32% Pretax Margin-1,796.18% Return on Equity-100.17% Return on Assets-28.36% Debt Debt-to-Equity Ratio0.11 Current Ratio0.93 Quick Ratio1.02 Sales & Book Value Annual Sales$4.31 million Price / Sales62.10 Cash FlowN/A Price / Cash FlowN/A Book Value$0.54 per share Price / Book4.87Miscellaneous Outstanding Shares101,770,000Free Float97,092,000Market Cap$267.66 million OptionableOptionable Beta1.60 Social Links Don't Wait for the OpenAI IPOThe AI wave will soon hit public markets with Anthropic and OpenAI set to go public later this year. 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