Assembly Biosciences Inc logo

Assembly Biosciences Inc(ASMB)

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ADVISORIES YOU CAN VERIFY
QUALITY SIGNAL
1-STAR RATING
PASS
LAST CLOSE
$23.67
09/25/2026
(24-hour delay)

Advisory History & Simulated Performance *

*as per simulation (see disclosures)
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Upturn Advisory & Investor View for ASMB

09/25/2026: ASMB (1-star) is currently NOT-A-BUY. Pass it for now.

Assembly Biosciences is a clinical-stage biotechnology company focused on developing novel small-molecule therapies for viral infections, including hepatitis B and herpesviruses. Its core strength lies in its specialized research platform and a strategic, long-standing partnership with Gilead Sciences that provides essential funding and validation. The primary growth story centers on the successful clinical advancement of its next-generation antiviral pipeline. However, the company faces significant execution and competitive risks, as it currently lacks commercial revenue and operates in a high-stakes R&D sector. This stock may suit investors with a high risk tolerance and an interest in biotech innovation, requiring careful monitoring of future clinical data readouts.

How to Read the Upturn Advisory

The Upturn Star Rating and the current BUY, SELL, or PASS advisory are generated by Upturn’s AI advisory engine based on proprietary signal analysis, price behavior, advisory history, and historical signal performance.

Company fundamentals, valuation, risks, and news provide supporting context about the business.

Investor Fit

Investor styleFitWhy
Growth investorMixed fitThe company offers high-risk, high-reward exposure to biotech innovation but lacks current commercial product growth.
Momentum investorStrong fit while signal remains positiveMomentum investors may find opportunity during clinical trial news cycles and positive data releases.
Value investorWeak fitStandard valuation metrics like P/E are not applicable due to the lack of steady earnings.
Dividend investorWeak fitThe company pays no dividends and requires cash for R&D.
Low-risk investorWeak fitHigh volatility associated with clinical-stage biotech makes this unsuitable for low-risk portfolios.

Risk Profile

Risk factorLevelWhy it matters
Price volatilityHighBiotech stock prices are often sensitive to binary clinical trial results.
Valuation riskMedium / highWithout commercial revenue, valuation is speculative and based on future potential.
Competition risk (Large Pharma)HighThe company faces intense competition from better-capitalized pharmaceutical firms.
Business qualityMediumThe business relies on scientific innovation rather than established franchise quality.
Dividend incomeLow / noneNo income is generated for shareholders.
Execution riskHighFailure to advance clinical programs can result in significant loss of shareholder value.

Price Behavior

Downtrend
PRICE PATH

Downtrend

The stock has experienced a sustained decline in price over recent periods.

Choppy
PRICE STABILITY

Choppy

The stock has experienced frequent reversals and pronounced short-term price swings.

Analysis of Past Performance

Type Stock
Historic Profit 47.84%
Avg. Invested days 32
Today’s Advisory PASS
Upturn Advisory Rating upturn star rating icon
Upturn Advisory Performance Upturn Advisory Performance icon 3.0
Stock Returns Performance Upturn Returns Performance icon 3.0
Upturn Profits based on simulation icon Profits based on simulation
Upturn last close icon Last Close 09/25/2026

Upturn Scorecard

Upturn Star Rating

★★★★★
ASMB receives a 3-star rating, supported by solid company fundamentals, and solid analyst coverage. The rating is constrained by soft unit economics, soft quantitative characteristics, and weak price momentum.

Company Fundamentals

★★★★★
ASMB has solid overall fundamentals (4 stars), with moderate financial health, strong growth momentum, and solid ownership. In FY2025 versus FY2024, strong earnings growth (+84.8%) and strong revenue growth (+153.5%) are partially offset by soft cash generation (FCF margin -56.9%), soft profitability (net margin -8.5%).

Financial Health Rating

★★★★★
ASMB's financial health is supported by moderate liquidity, including working-capital and asset support (WC/assets 79.9%). Cash strength is soft (2 stars), which helps explain the 3-star overall score.

Growth Momentum Score

★★★★★
Revenue growth is ASMB's strongest growth driver at +153.5% FY2025 versus FY2024 (strong, 5 stars). Earnings growth (+84.8%, strong) and free-cash-flow growth (+19.5%, solid) are also constructive, though not equally high across every growth measure.

Ownership

★★★★★
Institutional ownership is 69.5% and approximately 45.1% of outstanding shares are publicly tradable, supporting liquidity and institutional participation. Insider ownership of 27.66% supports management-shareholder alignment.

Top 5 Institutional Investors

Paradigm Biocapital Advisors LP 7.83%
Farallon Capital Management, L.L.C. 6.18%
RA Capital Management, LLC 5.14%
COMMODORE CAPITAL LP 5.04%
HHG PLC 4.28%

Unit Economics (Per $1K Revenue)

★★★★★
ASMB generates approximately $998 of gross profit, $-168 of operating income, and $-569 of free cash flow for every $1,000 of revenue. Based on FY2025 results. Strong cash conversion and healthy margins support the rating, although capital efficiency remains below the highest tier.

Economic Dimensions

★★★★★
Effective Tax Rate: 0.00%

Quantitative Style Profile

★★★★★
ASMB has a Short Squeeze Candidate profile. Weak momentum is the primary drawback.

Style Classification

Quality Focused

Value-OrientedSmall / Mid Cap RiskShort Squeeze Risk

Key Highlights

Company Size Small-Cap Stock
Market Capitalization 481.73M USD
Price to earnings Ratio 19.08
1Y Target Price 52
Price to earnings Ratio 19.08
1Y Target Price 52
Volume (30-day avg) 382.4K shares
Beta 1.13
52 Weeks Range 21.80 - 39.71
Updated Date 09/25/2026
52 Weeks Range 21.80 - 39.71
Updated Date 09/25/2026
Dividends yield (FY) -
Basic EPS (TTM) 1.24

How Company Makes Money

Business areaWhat it includesRetail investor read
Strategic Research CollaborationsMilestone payments and research funding from partners like Gilead Sciences.The company is paid for its research success and progress by larger partners.
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Valuation

Trailing PE 19.08
Forward PE 500
Enterprise Value 200.17M
Price to Sales(TTM) 6.44
Enterprise Value 200.17M
Price to Sales(TTM) 6.44
Enterprise Value to Revenue 2.68
Enterprise Value to EBITDA 0.42
Shares Outstanding 20.36M
Shares Floating 9.17M
Shares Outstanding 20.36M
Shares Floating 9.17M
Percent Insiders 27.66
Percent Institutions 69.5

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Financial Metrics

🧭 Investment Snapshot

Total Revenue (Scale)

Information icon Total money earned from selling products or services before any costs. It is needed to understand the scale of the business and its ability to generate income.

Net Income (Profit)

Information icon Final profit after all expenses, interest, and taxes are deducted. It is needed to determine the overall profitability available to shareholders.

Free Cash Flow (Cash Strength)

Information icon Cash remaining after operating activities and capital expenditures, showing cash available for growth. It is needed to evaluate the company’s ability to invest, pay dividends, or reduce debt.

📈 Growth & Strength

Operating Income (Core Profit)

Information icon Profit from core operations after deducting all operating expenses. It is needed to measure how efficiently the company runs its primary business activities.

EBITDA (Cash Earnings)

Information icon Earnings before interest, taxes, depreciation, and amortization, indicating operating cash potential. It is needed to compare operating performance across companies without accounting or financing differences.

Gross Profit (Unit Profitability)

Information icon Revenue minus cost of revenue, showing profit after direct production costs. It is needed to evaluate core business profitability before overhead expenses.

🛡️ Financial Safety

Cash (Liquidity Buffer)

Information icon Total cash and cash equivalents on hand. It is needed to evaluate immediate liquidity and financial flexibility.

Total Debt (Leverage Risk)

Information icon Total debt including both short-term and long-term components. It is needed to assess the company’s leverage and financial risk.

Net Working Capital (Short-Term Health)

Information icon Current assets minus current liabilities, indicating short-term liquidity strength. It is needed to assess whether the company can meet its short-term obligations.

🧱 Balance Sheet Strength

Stockholder Equity (Net Worth)

Information icon Total equity value held by shareholders. It is needed to understand the net worth of the company from the owners’ perspective.

Total Assets (Asset Base)

Information icon The full value of everything the company owns, including cash, inventory, equipment, and investments. It is needed to understand the resource base used to generate revenue.

Income Before Tax (Pre-Tax Earnings)

Information icon Income before provision for income taxes. It is needed to analyze profitability independent of tax structures.

⚙️ Cost & Drag Factors

Cost of Revenue (Production Cost)

Information icon Direct costs required to produce and deliver the products or services sold. It is needed to assess efficiency in production and service delivery.

Total Operating Expenses (Operating Cost)

Information icon Indirect costs of running the business such as salaries, marketing, and administration. It is needed to understand how much it costs to sustain ongoing business operations.

Income Tax Expense (Tax Drag)

Information icon Amount of taxes paid or payable to the government. It is needed to evaluate the impact of taxation on overall profitability.

About Assembly Biosciences Inc

Exchange NASDAQ
Headquarters South San Francisco, CA, United States
IPO Launch date 2010-12-17
CEO, President & Director Mr. Jason A. Okazaki J.D.
Sector Healthcare
Industry Biotechnology
Full time employees 73
Full time employees 73

Assembly Biosciences, Inc., a biotechnology company, develops therapeutic candidates for the treatment of viral diseases worldwide. Its pipeline includes long-acting helicase-primase inhibitors candidates, including ABI-5366 and ABI-1179, which are in Phase 1 clinical studies for recurrent genital herpes; and ABI-6250, an orally bioavailable hepatitis delta virus entry inhibitor that is in Phase 1a clinical study for the treatment of chronic hepatitis delta virus (HDV) infection. The company also develops ABI-4334, an orally bioavailable next generation capsid assembly modulator that is in Phase 1b study clinical trial for the treatment of chronic hepatitis B virus (HBV) infection; and ABI-7272, an oral broad-spectrum NNPI for the treatment of transplant-associated herpesviruses. It has an option, license, and collaboration agreement with Gilead Sciences, Inc. for the research and development of virology therapies. The company was formerly known as Ventrus Biosciences, Inc. and changed its name to Assembly Biosciences, Inc. in June 2014. Assembly Biosciences, Inc. was incorporated in 2005 and is headquartered in South San Francisco, California.