Tearsheet

Jasper Therapeutics (JSPR)


Market Price (4/23/2026): $0.9799 | Market Cap: $27.4 Mil
Sector: Health Care | Industry: Biotechnology

Jasper Therapeutics (JSPR)


Market Price (4/23/2026): $0.9799
Market Cap: $27.4 Mil
Sector: Health Care
Industry: Biotechnology

Investment Highlights Why It Matters Detailed financial logic regarding cash flow yields vs trend-riding momentum.

0

Cash is significant % of market cap
Net D/ENet Debt/Equity. Debt net of cash. Negative indicates net cash. Equity is taken as the Market Capitalization is -100%

Megatrend and thematic drivers
Megatrends include Precision Medicine, and Biotechnology & Genomics. Themes include Targeted Therapies, Biopharmaceutical R&D, Show more.

Weak multi-year price returns
2Y Excs Rtn is -138%, 3Y Excs Rtn is -165%

Meaningful short interest
Short Interest % of Basic SharesShort Interest % of Basic Shares = (Short Interest Quantity) / (Basic Shares Outstanding). A high fraction of short interest can indicate potential risk of a short squeeze. is 11%

Penny stock
Mkt Price is 1.0

Very low revenue
Rev LTMTotal Revenue or Sales, Last Twelve Months is 0

Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -84 Mil

Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -281%

Key risks
JSPR key risks include [1] drug product manufacturing failures that have [2] confounded and halted crucial clinical trials for its lead candidate, Show more.

0 Cash is significant % of market cap
Net D/ENet Debt/Equity. Debt net of cash. Negative indicates net cash. Equity is taken as the Market Capitalization is -100%
1 Megatrend and thematic drivers
Megatrends include Precision Medicine, and Biotechnology & Genomics. Themes include Targeted Therapies, Biopharmaceutical R&D, Show more.
2 Weak multi-year price returns
2Y Excs Rtn is -138%, 3Y Excs Rtn is -165%
3 Meaningful short interest
Short Interest % of Basic SharesShort Interest % of Basic Shares = (Short Interest Quantity) / (Basic Shares Outstanding). A high fraction of short interest can indicate potential risk of a short squeeze. is 11%
4 Penny stock
Mkt Price is 1.0
5 Very low revenue
Rev LTMTotal Revenue or Sales, Last Twelve Months is 0
6 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -84 Mil
7 Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -281%
8 Key risks
JSPR key risks include [1] drug product manufacturing failures that have [2] confounded and halted crucial clinical trials for its lead candidate, Show more.

Valuation, Metrics & Events

Price Chart

Why The Stock Moved

Qualitative Assessment

AI Analysis | Feedback

Jasper Therapeutics (JSPR) stock has lost about 45% since 12/31/2025 because of the following key factors:

1. Funding uncertainty for critical clinical trials has significantly weighed on investor confidence.

Despite reporting positive updated Phase 1b/2a data for briquilimab in Chronic Spontaneous Urticaria (CSU) in January 2026, Jasper Therapeutics indicated that the commencement of patient enrollment in its planned Phase 2b/3 study for CSU in the second half of 2026 is "pending capital availability." The company's cash and cash equivalents stood at $28.7 million as of December 31, 2025, while it reported a full-year net loss of $75.8 million for 2025, highlighting a substantial cash burn and creating apprehension about its ability to fund pivotal studies.

2. Shareholder dilution has negatively impacted per-share value.

The company has substantially diluted its shareholders, with the total number of shares outstanding growing by 86.4% over the past year. This significant increase in outstanding shares, likely through equity offerings to raise capital, diminishes the ownership stake and value for existing shareholders, contributing to the stock's downward trend.

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Stock Movement Drivers

Fundamental Drivers

The -46.5% change in JSPR stock from 12/31/2025 to 4/22/2026 was primarily driven by a -40.6% change in the company's Shares Outstanding (Mil).
(LTM values as of)123120254222026Change
Stock Price ($)1.830.98-46.5%
Change Contribution By: 
Total Revenues ($ Mil)000.0%
P/S Multiple0.0%
Shares Outstanding (Mil)1728-40.6%
Cumulative Contribution0.0%

LTM = Last Twelve Months as of date shown

Market Drivers

12/31/2025 to 4/22/2026
ReturnCorrelation
JSPR-46.5% 
Market (SPY)-5.4%13.3%
Sector (XLV)-5.4%20.4%

Fundamental Drivers

The -58.9% change in JSPR stock from 9/30/2025 to 4/22/2026 was primarily driven by a -45.2% change in the company's Shares Outstanding (Mil).
(LTM values as of)93020254222026Change
Stock Price ($)2.380.98-58.9%
Change Contribution By: 
Total Revenues ($ Mil)000.0%
P/S Multiple0.0%
Shares Outstanding (Mil)1528-45.2%
Cumulative Contribution0.0%

LTM = Last Twelve Months as of date shown

Market Drivers

9/30/2025 to 4/22/2026
ReturnCorrelation
JSPR-58.9% 
Market (SPY)-2.9%23.3%
Sector (XLV)5.6%12.5%

Fundamental Drivers

The -77.2% change in JSPR stock from 3/31/2025 to 4/22/2026 was primarily driven by a -46.4% change in the company's Shares Outstanding (Mil).
(LTM values as of)33120254222026Change
Stock Price ($)4.300.98-77.2%
Change Contribution By: 
Total Revenues ($ Mil)000.0%
P/S Multiple0.0%
Shares Outstanding (Mil)1528-46.4%
Cumulative Contribution0.0%

LTM = Last Twelve Months as of date shown

Market Drivers

3/31/2025 to 4/22/2026
ReturnCorrelation
JSPR-77.2% 
Market (SPY)16.3%21.6%
Sector (XLV)1.6%17.6%

Fundamental Drivers

The -94.6% change in JSPR stock from 3/31/2023 to 4/22/2026 was primarily driven by a -86.9% change in the company's Shares Outstanding (Mil).
(LTM values as of)33120234222026Change
Stock Price ($)18.100.98-94.6%
Change Contribution By: 
Total Revenues ($ Mil)000.0%
P/S Multiple0.0%
Shares Outstanding (Mil)428-86.9%
Cumulative Contribution0.0%

LTM = Last Twelve Months as of date shown

Market Drivers

3/31/2023 to 4/22/2026
ReturnCorrelation
JSPR-94.6% 
Market (SPY)63.3%20.2%
Sector (XLV)18.4%13.2%

Return vs. Risk

Price Returns Compared

 202120222023202420252026Total [1]
Returns
JSPR Return-22%-94%63%171%-91%-48%-99%
Peers Return51%17%8%-21%15%10%91%
S&P 500 Return27%-19%24%23%16%3%88%

Monthly Win Rates [3]
JSPR Win Rate50%17%42%58%25%25% 
Peers Win Rate56%53%53%47%56%50% 
S&P 500 Win Rate75%42%67%75%67%50% 

Max Drawdowns [4]
JSPR Max Drawdown-28%-94%-12%-16%-93%-64% 
Peers Max Drawdown-8%-21%-24%-23%-24%-8% 
S&P 500 Max Drawdown-1%-25%-1%-2%-15%-7% 


[1] Cumulative total returns since the beginning of 2021
[2] Peers: CLDX, REGN, AMGN.
[3] Win Rate = % of calendar months in which monthly returns were positive
[4] Max drawdown represents maximum peak-to-trough decline within a year
[5] 2026 data is for the year up to 4/22/2026 (YTD)

How Low Can It Go

Unique KeyEventJSPRS&P 500
2022 Inflation Shock2022 Inflation Shock  
2022 Inflation Shock% Loss% Loss-97.4%-25.4%
2022 Inflation Shock% Gain to Breakeven% Gain to Breakeven3777.2%34.1%
2022 Inflation ShockTime to BreakevenTime to BreakevenNot Fully Recovered days464 days
2020 Covid Pandemic2020 Covid Pandemic  
2020 Covid Pandemic% Loss% Loss-5.4%-33.9%
2020 Covid Pandemic% Gain to Breakeven% Gain to Breakeven5.7%51.3%
2020 Covid PandemicTime to BreakevenTime to Breakeven119 days148 days

Compare to CLDX, REGN, AMGN

In The Past

Jasper Therapeutics's stock fell -97.4% during the 2022 Inflation Shock from a high on 10/15/2021. A -97.4% loss requires a 3777.2% gain to breakeven.

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About Jasper Therapeutics (JSPR)

Jasper Therapeutics, Inc., a clinical-stage biotechnology company, develops therapeutic agents for hematopoietic stem cell transplantation and gene therapies. It focuses on the development and commercialization of conditioning agents and stem cell engineering to allow expanded use of stem cell transplantation and ex vivo gene therapy, a technique in which genetic manipulation of cells is performed outside the body prior to transplantation. The company's lead product candidate is JSP191, which is in clinical development as a conditioning antibody that clears hematopoietic stem cells from bone marrow in patients prior to undergoing allogeneic stem cell therapy or stem cell gene therapy. It is also developing engineered hematopoietic stem cells product candidates to overcome key limitations of allogeneic and autologous gene-edited stem cell grafts. The company is based in Redwood City, California.

AI Analysis | Feedback

Here are 1-3 brief analogies for Jasper Therapeutics (JSPR):

  • Jasper Therapeutics is like Illumina for preparing the body for advanced cell and gene therapies; while Illumina provides tools to read genetic information, Jasper provides agents to clear space for new cells.
  • If companies like CRISPR Therapeutics are developing the specialized 'software' for gene editing, Jasper Therapeutics is developing the crucial 'hardware prep' – the conditioning agents that create a clean environment in the bone marrow for those new genetic instructions.
  • Jasper Therapeutics aims to make complex stem cell transplants and gene therapies safer and more widely available, much like how Intuitive Surgical (maker of Da Vinci robots) has revolutionized and expanded the use of minimally invasive surgery.

AI Analysis | Feedback

Major Products of Jasper Therapeutics (JSPR)

  • JSP191: A conditioning antibody in clinical development that clears hematopoietic stem cells from bone marrow prior to stem cell therapy or gene therapy.
  • Engineered Hematopoietic Stem Cells Product Candidates: Products under development aimed at overcoming limitations of allogeneic and autologous gene-edited stem cell grafts.

AI Analysis | Feedback

As a clinical-stage biotechnology company, Jasper Therapeutics (JSPR) is primarily focused on the research and development of therapeutic agents, including its lead product candidate, JSP191. These products are currently in clinical development and have not yet received regulatory approval for commercial sale.

Therefore, Jasper Therapeutics does not currently have major commercial customers in the traditional sense, whether other companies or individual patients. Its "products" are being evaluated in clinical trials, and its current activities are centered on advancing these candidates through the development pipeline.

Upon potential future regulatory approval, the company's customer base would likely consist of hospitals, specialized medical centers, and healthcare systems that administer complex therapies like stem cell transplantation and gene therapies to patients.

AI Analysis | Feedback

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Jeet Mahal, Chief Executive Officer

Mr. Mahal was appointed Chief Executive Officer of Jasper Therapeutics effective January 5, 2026, after serving as Chief Business and Financial Officer, and most recently Chief Operating Officer. He joined Jasper Therapeutics from Portola Pharmaceuticals, where he spent 11 years in leadership roles, including Vice President, Business Development and Vice President, Strategic Marketing. At Portola, he successfully executed multiple business development partnerships for Andexxa®, Bevyxxa®, and cerdulatinib and played a key role in the company's equity financings, including its initial public offering. Earlier in his career, Mr. Mahal was Director, Business and New Product Development, at Johnson & Johnson on the Xarelto® development and strategic marketing team, and began his career in the drug development laboratories at COR Therapeutics.

Herb Cross, Chief Financial Officer

Mr. Cross joined Jasper Therapeutics as Chief Financial Officer in September 2023, bringing over two decades of financial leadership experience in public and private biotechnology companies. Prior to Jasper, he served as CFO at Atreca, where he led its initial public offering. Before Atreca, he was CFO at ARMO BioSciences, where he led its initial public offering and oversaw the company through its sale to Eli Lilly in 2018. Mr. Cross has also held CFO and interim CEO roles at KaloBios Pharmaceuticals and served as CFO at Affymax. He began his career at Arthur Andersen, LLP.

Daniel Adelman, M.D., Acting Chief Medical Officer

Dr. Adelman serves as the Acting Chief Medical Officer of Jasper Therapeutics.

Luca Di Noto, Ph. D., Vice President, Technical Operations

Dr. Di Noto joined Jasper Therapeutics in 2020 and has extensive industry experience in process development, process scale-up, technology transfer, cGMP manufacturing, and regulatory submissions for biologic drugs. Previously, he spent five years at Portola Pharmaceuticals as the Head of Drug Substance manufacturing, where he oversaw the Andexxa® program.

Wendy Pang, M.D., Ph.D., Senior Vice President, Research and Translational Medicine

Dr. Pang joined Jasper Therapeutics in 2020 and has led early research and development, including the creation of the company's mRNA stem cell graft platform and played a pivotal role in advancing JSP191 through multiple clinical studies. Prior to Jasper, she was an Instructor in the Division of Blood and Marrow Transplantation at Stanford University and the lead scientist in the preclinical drug development of an anti-CD117 antibody program.

AI Analysis | Feedback

The key risks to Jasper Therapeutics (JSPR) primarily stem from its nature as a clinical-stage biotechnology company focused on the development of novel therapeutic agents.

  1. Clinical Trial and Regulatory Approval Risk: As a clinical-stage company, Jasper Therapeutics' success is heavily dependent on the successful outcome of its ongoing and future clinical trials for its lead product candidate, JSP191, and other product candidates. The drug development process is inherently lengthy, costly, and carries a high risk of failure due to unforeseen safety issues, lack of efficacy, or challenges in manufacturing. Even if clinical trials are successful, there is no guarantee that its product candidates will receive the necessary regulatory approvals from agencies like the FDA, which is a complex and often unpredictable process. Failure at any stage of clinical development or inability to obtain regulatory approval would significantly jeopardize the company's future prospects.
  2. Reliance on a Single Lead Product Candidate: Jasper Therapeutics' business is highly concentrated around the development of JSP191, described as its "lead product candidate." This heavy reliance means that the company's valuation and future success are predominantly tied to the successful development, approval, and commercialization of JSP191. Any adverse events, delays, or outright failure of JSP191 in clinical trials or regulatory review would have a substantial negative impact on the company, as its pipeline of other engineered hematopoietic stem cell product candidates appears to be in earlier stages of development.
  3. Capital and Funding Risk: As a clinical-stage biotechnology company without revenue-generating commercial products, Jasper Therapeutics requires substantial ongoing capital to fund its extensive research and development activities, particularly the costly clinical trials for JSP191 and other candidates. There is a continuous need to raise additional capital, and the company's ability to do so on favorable terms, or at all, is uncertain. A lack of sufficient funding could force the company to delay, scale back, or even abandon its development programs, thereby impacting its ability to bring products to market.

AI Analysis | Feedback

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AI Analysis | Feedback

Jasper Therapeutics (NASDAQ: JSPR) operates in several significant addressable markets through its main product candidates, JSP191 (Briquilimab) and its engineered hematopoietic stem cell platform.

JSP191 (Briquilimab)

JSP191, also known as Briquilimab, is being developed for multiple indications, including as a conditioning agent for hematopoietic stem cell transplantation (HSCT) and for chronic conditions such as chronic urticaria and asthma.

  • Hematopoietic Stem Cell Transplantation (HSCT): The global hematopoietic stem cell transplantation market was valued at approximately USD 3.25 billion in 2024 and is projected to reach USD 7.89 billion by 2032. Another estimate places the global market at USD 6.7 billion in 2024, growing to USD 10.7 billion by 2030. North America accounts for a substantial portion of this market, holding approximately 38% in 2024. The U.S. hematopoietic stem cell transplantation market alone was estimated at USD 2.58 billion in 2024 and is projected to reach approximately USD 3.87 billion by 2030.
  • Chronic Urticaria: The global market size for chronic urticaria was estimated at USD 2.45 billion in 2022 and is expected to grow to USD 7.5 billion by 2029.
  • Asthma: The global asthma market size was estimated at USD 18 billion in 2019 and is projected to reach around USD 32.81 billion by 2032.

Engineered Hematopoietic Stem Cells

Jasper Therapeutics is also advancing a preclinical mRNA hematopoietic stem cell grafts platform, which is designed to overcome key limitations of allogeneic and autologous gene-edited stem cell grafts. This product falls within the broader cell and gene therapy and stem cells markets.

  • Global Gene Therapy Market: The global gene therapy market was valued at USD 9.5 billion in 2024, grew to USD 11.4 billion in 2025, and is projected to reach approximately USD 58.87 billion by 2034. North America dominated the gene therapy market with a revenue share of 45% in 2024. The U.S. gene therapy market alone was estimated at USD 6.3 billion in 2025 and is projected to surpass approximately USD 38.4 billion by 2035.
  • Global Cell and Gene Therapy (CGT) Market: The global cell and gene therapy sector was valued at USD 18 billion in 2023 and is projected to reach approximately USD 97 billion by 2033.
  • Global Stem Cells Market: The global stem cells market size was estimated at USD 15.10 billion in 2024 and is anticipated to reach USD 28.89 billion by 2030. North America accounted for the largest revenue share of 43.89% in the stem cell market in 2024.

AI Analysis | Feedback

For Jasper Therapeutics (JSPR), a clinical-stage biotechnology company, expected drivers of future revenue growth over the next 2-3 years primarily revolve around the advancement of its pipeline and the securing of associated milestone payments or collaborations, rather than direct product sales, as analysts forecast no product revenue in this timeframe. The company's current revenue streams are largely driven by collaboration agreements and government grants, which are tied to research milestones.

The key drivers for potential revenue growth include:

  1. Successful Clinical and Regulatory Advancement of Briquilimab in Chronic Urticaria (CSU/CIndU): Briquilimab (formerly JSP191) is Jasper Therapeutics' lead product candidate, with ongoing BEACON and SPOTLIGHT clinical studies for chronic spontaneous urticaria (CSU) and chronic inducible urticaria (CIndU). Positive data readouts, progression to registrational trials, and potential regulatory submissions or designations within the next 2-3 years could trigger significant milestone payments from existing or new collaboration partners. The potential for market approval for chronic urticaria by 2027 could lead to substantial revenue opportunities.

  2. Advancement of Briquilimab into Later-Stage Clinical Development for Asthma: Jasper Therapeutics has initiated a new clinical program for briquilimab in asthma. Successful progression through early-stage clinical trials and into later-stage development could attract further partnership interest and associated milestone payments, opening up another potentially large market.

  3. Achievement of Clinical Milestones in JSP191's Conditioning Programs for Stem Cell Transplantation: While the company has reprioritized briquilimab for chronic mast cell diseases, JSP191 continues to be developed as a conditioning agent for hematopoietic stem cell transplantation in various indications such as myelodysplastic syndromes (MDS), acute myeloid leukemia (AML), severe combined immunodeficiency (SCID), Fanconi anemia, and Sickle Cell Disease. Positive clinical data or the initiation of pivotal studies in these areas could lead to additional collaboration revenue through milestone payments.

  4. Formation of New or Expanded Strategic Partnerships and Collaboration Agreements: As a clinical-stage biotechnology company, a significant portion of Jasper Therapeutics' reported revenue historically comes from collaboration agreements and government grants. Securing new strategic partnerships or expanding existing collaborations can provide crucial upfront payments, research funding, and development milestone payments, directly contributing to the company's revenue growth within the forecast period.

AI Analysis | Feedback

Share Issuance

  • Jasper Therapeutics successfully completed a $30 million underwritten public offering of common stock and warrants in September 2025, extending its cash runway through the first half of 2026.
  • In January 2023, the company raised an estimated $101.4 million in net proceeds through a public offering and sales via an at-the-market facility, expected to fund operating and capital expenditures through 2024.
  • On September 24, 2021, Jasper Therapeutics consummated a Business Combination, merging with Amplitude Healthcare Acquisition Corporation, resulting in its common stock being listed on Nasdaq under the symbol JSPR.

Inbound Investments

  • The company's primary inbound investments within the last three to five years have been through public equity offerings to fund its clinical development programs and general operations.
  • Institutional investors held approximately 78% of Jasper Therapeutics' stock as of December 2025, indicating significant external investment in its shares.

Capital Expenditures

  • Capital expenditures for the annual period ending December 30, 2024, were -$0.6 million.
  • The net proceeds from the September 2025 public offering were allocated for continued advancement of preclinical and clinical development programs, general corporate purposes, including capital expenditures, working capital, and administrative expenses.
  • Research and development (R&D) expenses, a significant component of the company's operational spending, were $14.4 million in Q3 2025, $34.6 million in 2022, and $25.4 million in 2021.

Latest Trefis Analyses

TitleDate
0DASHBOARDS 
1Jasper Therapeutics Earnings Notes12/16/2025
Title
0ARTICLES

Trade Ideas

Select ideas related to JSPR.

Unique KeyDateTickerCompanyCategoryTrade Strategy6M Fwd Rtn12M Fwd Rtn12M Max DD
PGNY_3312026_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG03312026PGNYProgynyDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
0.0%0.0%0.0%
CNC_3272026_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG03272026CNCCenteneDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
2.3%2.3%-0.6%
OSCR_3272026_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG03272026OSCROscar HealthDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
3.0%3.0%-2.6%
WAT_3202026_Monopoly_xInd_xCD_Getting_Cheaper03202026WATWatersMonopolyMY | Getting CheaperMonopoly-Like with P/S Decline
Large cap with monopoly-like margins or cash flow generation and getting cheaper based on P/S multiple
-0.4%-0.4%-3.3%
GILD_3202026_Quality_Momentum_RoomToRun_10%03202026GILDGilead SciencesQualityQ | Momentum | UpsideQuality Stocks with Momentum and Upside
Buying quality stocks with strong momentum but still having room to run
1.6%1.6%-2.2%

Recent Active Movers

Peer Comparisons

Peers to compare with:

Financials

JSPRCLDXREGNAMGNMedian
NameJasper T.Celldex .Regenero.Amgen  
Mkt Price0.9834.21746.58345.92190.06
Mkt Cap0.02.377.0186.139.6
Rev LTM0214,34336,7517,172
Op Inc LTM-84-2873,7029,0801,809
FCF LTM-77-2143,7658,1001,844
FCF 3Y Avg-64-1613,6578,6181,797
CFO LTM-77-2114,9799,9582,451
CFO 3Y Avg-64-1594,6649,9732,300

Growth & Margins

JSPRCLDXREGNAMGNMedian
NameJasper T.Celldex .Regenero.Amgen  
Rev Chg LTM--78.0%1.0%10.0%1.0%
Rev Chg 3Y Avg-38.7%5.7%11.9%11.9%
Rev Chg Q--89.7%2.5%8.6%2.5%
QoQ Delta Rev Chg LTM--40.5%0.7%2.2%0.7%
Op Inc Chg LTM-10.0%-47.3%-9.5%25.1%-9.8%
Op Inc Chg 3Y Avg-18.4%-39.1%-9.4%-0.1%-13.9%
Op Mgn LTM--18,587.7%25.8%24.7%24.7%
Op Mgn 3Y Avg--7,810.1%29.0%24.8%24.8%
QoQ Delta Op Mgn LTM--8,732.3%-0.9%0.6%-0.9%
CFO/Rev LTM--13,644.6%34.7%27.1%27.1%
CFO/Rev 3Y Avg--5,817.0%33.6%30.5%30.5%
FCF/Rev LTM--13,820.1%26.3%22.0%22.0%
FCF/Rev 3Y Avg--5,893.4%26.4%26.4%26.4%

Valuation

JSPRCLDXREGNAMGNMedian
NameJasper T.Celldex .Regenero.Amgen  
Mkt Cap0.02.377.0186.139.6
P/S-1,471.35.45.15.4
P/Op Inc-0.3-7.920.820.510.1
P/EBIT-0.3-7.914.615.97.1
P/E-0.4-8.817.124.18.4
P/CFO-0.4-10.815.518.77.6
Total Yield-276.3%-11.4%6.3%6.9%-2.5%
Dividend Yield0.0%0.0%0.5%2.8%0.2%
FCF Yield 3Y Avg-142.8%-8.9%4.4%5.6%-2.2%
D/E0.00.00.00.30.0
Net D/E-1.0-0.2-0.10.2-0.2

Returns

JSPRCLDXREGNAMGNMedian
NameJasper T.Celldex .Regenero.Amgen  
1M Rtn-17.7%7.6%1.4%-1.1%0.1%
3M Rtn-35.6%30.7%-0.2%1.4%0.6%
6M Rtn-59.2%28.0%28.0%18.5%23.3%
12M Rtn-77.6%76.4%28.2%28.2%28.2%
3Y Rtn-92.9%-6.6%-6.1%55.8%-6.4%
1M Excs Rtn-26.2%-0.9%-7.1%-9.6%-8.3%
3M Excs Rtn-39.4%26.9%-4.1%-2.4%-3.3%
6M Excs Rtn-67.0%17.7%23.8%9.7%13.7%
12M Excs Rtn-116.3%42.2%-4.7%-8.0%-6.4%
3Y Excs Rtn-165.1%-66.5%-80.3%-18.8%-73.4%

Comparison Analyses

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Financials

Segment Financials

Assets by Segment
$ Mil2025202420232022
Research and development of therapeutic products in the fields of chronic urticaria and asthma95489423
Total95489423


Price Behavior

Price Behavior
Market Price$0.98 
Market Cap ($ Bil)0.0 
First Trading Date01/10/2020 
Distance from 52W High-85.6% 
   50 Days200 Days
DMA Price$1.14$1.99
DMA Trenddowndown
Distance from DMA-14.1%-50.8%
 3M1YR
Volatility93.5%99.6%
Downside Capture1.401.38
Upside Capture139.4320.26
Correlation (SPY)16.9%23.2%
JSPR Betas & Captures as of 3/31/2026

 1M2M3M6M1Y3Y
Beta-0.271.210.681.371.081.25
Up Beta-0.031.501.210.820.650.83
Down Beta-0.150.19-0.351.570.520.86
Up Capture-148%85%7%29%122%86%
Bmk +ve Days7162765139424
Stock +ve Days7162759116355
Down Capture135%212%191%187%167%113%
Bmk -ve Days12233358110323
Stock -ve Days14253461126373

[1] Upside and downside betas calculated using positive and negative benchmark daily returns respectively
Based On 1-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with JSPR
JSPR-50.7%82.7%-0.50-
Sector ETF (XLV)12.0%15.9%0.5216.7%
Equity (SPY)26.7%12.5%1.7726.5%
Gold (GLD)38.9%27.4%1.192.6%
Commodities (DBC)23.5%16.2%1.32-0.4%
Real Estate (VNQ)15.6%13.6%0.827.4%
Bitcoin (BTCUSD)-12.8%42.6%-0.2119.5%

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Based On 5-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with JSPR
JSPR-53.4%233.3%0.13-
Sector ETF (XLV)5.6%14.6%0.203.4%
Equity (SPY)10.5%17.1%0.485.5%
Gold (GLD)21.5%17.8%0.993.3%
Commodities (DBC)10.7%18.8%0.47-4.5%
Real Estate (VNQ)3.6%18.8%0.093.6%
Bitcoin (BTCUSD)3.8%56.4%0.296.6%

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Based On 10-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with JSPR
JSPR-31.6%208.5%0.12-
Sector ETF (XLV)9.5%16.5%0.462.5%
Equity (SPY)13.8%17.9%0.664.1%
Gold (GLD)13.9%15.9%0.732.9%
Commodities (DBC)8.1%17.6%0.38-3.9%
Real Estate (VNQ)5.4%20.7%0.232.5%
Bitcoin (BTCUSD)68.1%66.9%1.075.5%

Smart multi-asset allocation framework can stack odds in your favor. Learn How

Short Interest

Short Interest: As Of Date3312026
Short Interest: Shares Quantity3.0 Mil
Short Interest: % Change Since 3152026-3.4%
Average Daily Volume0.4 Mil
Days-to-Cover Short Interest8.4 days
Basic Shares Quantity28.0 Mil
Short % of Basic Shares10.8%

Earnings Returns History

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 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
3/30/2026-2.6%-25.8% 
11/10/20250.0%-5.6%5.1%
8/13/20252.0%-4.0%-18.2%
5/12/20251.7%5.9%18.1%
2/27/2025-2.2%-2.1%-16.6%
11/7/2024-4.3%-3.8%-5.1%
3/4/20240.9%24.8%18.7%
11/9/2023-8.1%-28.3%-36.4%
...
SUMMARY STATS   
# Positive744
# Negative7109
Median Positive1.5%5.1%11.6%
Median Negative-4.3%-5.3%-20.6%
Max Positive4.2%24.8%18.7%
Max Negative-8.1%-28.3%-45.7%

SEC Filings

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Report DateFiling DateFiling
12/31/202503/30/202610-K
09/30/202511/10/202510-Q
06/30/202508/13/202510-Q
03/31/202505/12/202510-Q
12/31/202402/28/202510-K
09/30/202411/07/202410-Q
06/30/202408/13/202410-Q
03/31/202405/14/202410-Q
12/31/202303/05/202410-K
09/30/202311/09/202310-Q
06/30/202308/11/202310-Q
03/31/202305/12/202310-Q
12/31/202203/08/202310-K
09/30/202211/10/202210-Q
06/30/202208/12/202210-Q
03/31/202205/12/202210-Q

Recent Forward Guidance [BETA]

Latest: Q4 2025 Earnings Reported 3/30/2026

Forward GuidanceGuidance Change
MetricLowMidHigh% Chg% DeltaChangePrior
2026 Patient Enrollment Commencement      

Prior: Q3 2025 Earnings Reported 11/10/2025

Forward GuidanceGuidance Change
MetricLowMidHigh% Chg% DeltaChangePrior
2026 Cash Runway