Obsidian Therapeutics (OBX)


Market Price (11/5/2026): $10.13 | Market Cap: $625.8 MilSector: Health Care | Industry: Biotechnology

Obsidian Therapeutics (OBX)


Market Price (11/5/2026): $10.13
Market Cap: $625.8 Mil
Sector: Health Care
Industry: Biotechnology

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

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Megatrend and thematic drivers
Megatrends include Biotechnology & Genomics, and Precision Medicine. Themes include Gene Editing & Therapy, and Targeted Therapies.

Weak multi-year price returns
2Y Excs Rtn is -98%, 3Y Excs Rtn is -149%

High stock price volatility
Vol 12M is 125%

0 Megatrend and thematic drivers
Megatrends include Biotechnology & Genomics, and Precision Medicine. Themes include Gene Editing & Therapy, and Targeted Therapies.
1 Weak multi-year price returns
2Y Excs Rtn is -98%, 3Y Excs Rtn is -149%
2 High stock price volatility
Vol 12M is 125%

OBX in ETFs

Weight = OBX's share of each fund

VTI0.00%
ITOT0.00%
SCHA0.02%
ONEQ0.00%
SCHB0.00%

Valuation & Metrics

Price Chart

Why The Stock Moved

Qualitative Assessment

AI Analysis | Feedback

Updated on 11/4/2026

Obsidian Therapeutics (OBX) stock has lost about 70% since it went public on 8/4/2026 because of the following key factors:

1. Initial Overvaluation and Subsequent Price Correction Post-IPO. Obsidian Therapeutics (OBX) debuted on August 4, 2026, with its stock reaching an all-time high of $49.97 on its initial trading day. However, a September 2026 analysis indicated that the company's $1.1 billion market capitalization implied a risk-adjusted fair value of only $10.16 per share, suggesting significant overvaluation at the onset. This substantial discrepancy between the initial trading price and a more conservative valuation likely contributed to the rapid decline in share price as the market adjusted expectations.

2. Prolonged Development Timelines and Lack of Near-Term Pivotal Catalysts. Despite positive Phase 1/2 data for Amsoki-cel (OBX-115) in advanced melanoma, which demonstrated a 67% objective response rate (ORR) at the recommended Phase 2 dose, critical registration-enabling topline data for this lead program are not anticipated until year-end 2027. Additionally, Phase 1 data for non-small cell lung cancer (NSCLC) is not expected until the first half of fiscal year 2027. These extended timelines for definitive clinical outcomes in a clinical-stage biotechnology company can lead to investor impatience and a sustained downward pressure on the stock, especially after an inflated initial valuation.

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Updated on 11/4/2026

Obsidian Therapeutics (OBX) stock has lost about 70% since it went public on 8/4/2026 because of the following key factors:

1. Initial Overvaluation and Subsequent Price Correction Post-IPO. Obsidian Therapeutics (OBX) debuted on August 4, 2026, with its stock reaching an all-time high of $49.97 on its initial trading day. However, a September 2026 analysis indicated that the company's $1.1 billion market capitalization implied a risk-adjusted fair value of only $10.16 per share, suggesting significant overvaluation at the onset. This substantial discrepancy between the initial trading price and a more conservative valuation likely contributed to the rapid decline in share price as the market adjusted expectations.

2. Prolonged Development Timelines and Lack of Near-Term Pivotal Catalysts. Despite positive Phase 1/2 data for Amsoki-cel (OBX-115) in advanced melanoma, which demonstrated a 67% objective response rate (ORR) at the recommended Phase 2 dose, critical registration-enabling topline data for this lead program are not anticipated until year-end 2027. Additionally, Phase 1 data for non-small cell lung cancer (NSCLC) is not expected until the first half of fiscal year 2027. These extended timelines for definitive clinical outcomes in a clinical-stage biotechnology company can lead to investor impatience and a sustained downward pressure on the stock, especially after an inflated initial valuation.

3. Persistent Financial Losses and Looming Dilution Risk. For fiscal year 2025, Obsidian Therapeutics reported no revenue and a net loss of -$100.6 million, with Q2 2026 earnings showing a net loss of -$25.86 million. While the company completed a $350 million private placement, bringing its post-transaction cash to approximately $350 million, expected to fund operations into the second half of fiscal year 2028, analysts have noted that this may not be sufficient to bring its lead melanoma therapy to market without further capital raises. The ongoing unprofitability and the potential for future share dilution to finance lengthy clinical development continue to be significant concerns for investors.

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Stock Movement Drivers

Fundamental Drivers

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Market Drivers

7/31/2026 to 11/4/2026
ReturnCorrelation
OBX  
Market (SPY)2.6%-13.7%
Sector (XLV)16.7%10.9%

Fundamental Drivers

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Market Drivers

4/30/2026 to 11/4/2026
ReturnCorrelation
OBX  
Market (SPY)7.0%-13.7%
Sector (XLV)30.5%10.9%

Fundamental Drivers

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Market Drivers

10/31/2025 to 11/4/2026
ReturnCorrelation
OBX  
Market (SPY)13.4%-13.7%
Sector (XLV)33.2%10.9%

Fundamental Drivers

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Market Drivers

10/31/2023 to 11/4/2026
ReturnCorrelation
OBX  
Market (SPY)89.7%-13.7%
Sector (XLV)59.5%10.9%

Return vs. Risk

Price Returns Compared

 202120222023202420252026Total [1]
Returns
OBX Return------68%-68%
Peers Return-36%-63%-32%-36%16%6%-87%
S&P 500 Return27%-19%24%23%16%11%102%

Monthly Win Rates [3]
OBX Win Rate-----25% 
Peers Win Rate31%30%35%37%47%44% 
S&P 500 Win Rate75%42%67%75%67%36% 

Max Drawdowns [4]
OBX Max Drawdown------ 
Peers Max Drawdown-59%-71%-70%-73%-65%-69% 
S&P 500 Max Drawdown-5%-25%-10%-8%-19%-9% 


[1] Cumulative total returns since the beginning of 2021
[2] Peers: IOVA, LYEL, ALLO, CRBU, ATRA.
[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 11/4/2026 (YTD)

How Low Can It Go

OBX has limited trading history. Below is the Health Care sector ETF (XLV) in its place.

EventXLVS&P 500
2025 US Tariff Shock
  % Loss-11.7%-18.8%
  % Gain to Breakeven13.3%23.1%
  Time to Breakeven142 days79 days
2022 Inflation Shock & Fed Tightening
  % Loss-13.8%-24.5%
  % Gain to Breakeven15.9%32.4%
  Time to Breakeven166 days427 days
2020 COVID-19 Crash
  % Loss-27.9%-33.7%
  % Gain to Breakeven38.8%50.9%
  Time to Breakeven77 days140 days
Q4 2018 Fed Policy Error / Growth Scare
  % Loss-15.0%-19.2%
  % Gain to Breakeven17.6%23.8%
  Time to Breakeven191 days105 days
2015-2016 China Devaluation / Global Growth Scare
  % Loss-15.9%-12.2%
  % Gain to Breakeven18.9%13.9%
  Time to Breakeven165 days62 days
2011 US Debt Ceiling Crisis & European Contagion
  % Loss-15.8%-17.9%
  % Gain to Breakeven18.8%21.8%
  Time to Breakeven153 days123 days

Compare to IOVA, LYEL, ALLO, CRBU, ATRA

In The Past

State Street Health Care Select Sector SPDR ETF's stock fell -11.7% during the 2025 US Tariff Shock. Such a loss loss requires a 13.3% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

OBX has limited trading history. Below is the Health Care sector ETF (XLV) in its place.

EventXLVS&P 500
2020 COVID-19 Crash
  % Loss-27.9%-33.7%
  % Gain to Breakeven38.8%50.9%
  Time to Breakeven77 days140 days
2008-2009 Global Financial Crisis
  % Loss-37.9%-53.4%
  % Gain to Breakeven61.1%114.4%
  Time to Breakeven767 days1085 days

Compare to IOVA, LYEL, ALLO, CRBU, ATRA

In The Past

State Street Health Care Select Sector SPDR ETF's stock fell -11.7% during the 2025 US Tariff Shock. Such a loss loss requires a 13.3% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

About Obsidian Therapeutics (OBX)

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Recent Active Movers

Peer Comparisons

Peers to compare with:

Financials

OBXIOVALYELALLOCRBUATRAMedian
NameObsidian.Iovance .Lyell Im.Allogene.Caribou .Atara Bi. 
Mkt Price10.978.5415.841.190.438.408.47
Mkt Cap-3.80.40.40.00.10.4
Rev LTM-325051066
Op Inc LTM--296-190-180-109-14-180
FCF LTM--296-134-103-96-22-103
FCF 3Y Avg--340-155-168-121-76-155
CFO LTM--264-133-102-96-22-102
CFO 3Y Avg--319-154-168-116-76-154

Growth & Margins

OBXIOVALYELALLOCRBUATRAMedian
NameObsidian.Iovance .Lyell Im.Allogene.Caribou .Atara Bi. 
Rev Chg LTM-34.5%-55.0%-10.0%-96.7%-22.5%
Rev Chg 3Y Avg-4,780.4%-47.9%-23.3%304.9%164.1%
Rev Chg Q-65.7%-50.0%--43.8%-96.4%-46.9%
QoQ Delta Rev Chg LTM-13.8%-12.9%--10.4%-73.2%-11.7%
Op Inc Chg LTM-27.9%12.1%25.2%29.6%-277.0%25.2%
Op Inc Chg 3Y Avg-10.4%2.9%20.2%1.0%-43.6%2.9%
Op Mgn LTM--91.1%-704,307.4%-3,886.1%-1,090.9%-229.7%-1,090.9%
Op Mgn 3Y Avg--554.2%-494,189.8%--1,074.3%-170.8%-814.2%
QoQ Delta Op Mgn LTM-34.2%-96,168.7%--23.7%-202.4%-113.0%
CFO/Rev LTM--81.3%-493,555.6%-2,202.5%-954.5%-353.5%-954.5%
CFO/Rev 3Y Avg--464.4%-357,582.1%--925.7%-205.0%-695.0%
FCF/Rev LTM--91.2%-496,188.9%-2,211.2%-956.3%-353.5%-956.3%
FCF/Rev 3Y Avg--482.4%-359,105.7%--948.4%-205.3%-715.4%

Valuation

OBXIOVALYELALLOCRBUATRAMedian
NameObsidian.Iovance .Lyell Im.Allogene.Caribou .Atara Bi. 
Mkt Cap-3.80.40.40.00.10.4
P/S-11.813,706.984.44.320.420.4
P/Op Inc--13.0-1.9-2.2-0.4-8.9-2.2
P/EBIT--13.0-1.9-2.4-0.4-9.1-2.4
P/E--13.3-1.5-2.4-0.4-7.6-2.4
P/CFO--14.6-2.8-3.8-0.5-5.8-3.8
Total Yield--7.4%-68.9%-42.3%-232.7%-13.3%-42.3%
Dividend Yield-0.0%0.0%0.0%0.0%0.0%0.0%
FCF Yield 3Y Avg--29.9%-71.8%-42.2%-70.8%-113.0%-70.8%
D/E-0.00.10.20.60.10.1
Net D/E--0.0-0.5-0.7-2.00.0-0.5

Returns

OBXIOVALYELALLOCRBUATRAMedian
NameObsidian.Iovance .Lyell Im.Allogene.Caribou .Atara Bi. 
1M Rtn-20.7%-39.6%74.6%-20.7%-63.7%-10.6%-20.7%
3M Rtn-61.5%96.8%17.8%-39.0%-73.2%-1.6%-20.3%
6M Rtn-67.7%108.8%-24.0%-48.5%-77.8%63.1%-36.3%
12M Rtn-67.7%369.2%-0.7%7.2%-80.1%-31.7%-16.2%
3Y Rtn-67.7%102.9%-63.0%-66.0%-89.7%-74.0%-66.9%
1M Excs Rtn-13.8%-31.0%87.3%-15.3%-58.8%-10.6%-14.6%
3M Excs Rtn-59.5%39.3%13.3%-37.8%-71.9%3.7%-17.1%
6M Excs Rtn-70.5%106.1%-26.9%-51.3%-80.5%60.3%-39.1%
12M Excs Rtn-78.2%327.7%-15.0%-9.6%-92.4%-49.9%-32.4%
3Y Excs Rtn-149.2%50.7%-139.6%-138.5%-167.4%-155.9%-144.4%

Comparison Analyses

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Financials

Segment Financials

Revenue by Segment
$ Mil20252024
Developing engineered cell and gene therapies to deliver transformative outcomes for patients00
Total00


Net Income by Segment
$ Mil20252024
Developing engineered cell and gene therapies to deliver transformative outcomes for patients-101-83
Total-101-83


Price Behavior

Price Behavior
Market Price$10.99 
Distance from 52W High-68.6% 
   50 Days200 Days
DMA Price$14.91 
DMA Trend  
Distance from DMA-26.3% 
 3M1YR
Volatility123.8%125.4%
Downside Capture152.15 
Upside Capture-328.31 
Correlation (S&P 500)-7.5% 
OBX Betas & Captures as of 10/31/2026

 1M2M3M6M1Y3Y
Beta1.321.06-1.12-0.95-3.240.95
Up Beta0.50-1.57-5.971.662.48-3.64
Down Beta-2.85-2.12-1.232.10-5.301.08
Up Capture429%209%-190%-74%-28%-3%
Bmk +ve Days12182862130427
Stock +ve Days122127272727
Down Capture221%269%201%103%60%35%
Bmk -ve Days10253664121325
Stock -ve Days102235353535

[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 OBX
OBX-67.8%125.4%-2.85-
Sector ETF (XLV)33.1%16.7%1.5310.9%
Equity (SPY)13.2%12.9%0.68-13.7%
Gold (GLD)1.0%28.8%0.03-8.9%
Commodities (DBC)35.9%21.2%1.3416.3%
Real Estate (VNQ)14.3%14.1%0.70-23.8%
Bitcoin (BTCUSD)-28.2%43.4%-0.656.6%

Smart multi-asset allocation framework can stack odds in your favor. Learn How
Based On 5-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with OBX
OBX-20.2%125.4%-2.85-
Sector ETF (XLV)9.3%15.3%0.4010.9%
Equity (SPY)12.5%17.2%0.55-13.7%
Gold (GLD)17.3%19.1%0.73-8.9%
Commodities (DBC)8.0%19.6%0.2916.3%
Real Estate (VNQ)1.8%18.9%-0.01-23.8%
Bitcoin (BTCUSD)5.5%51.5%0.296.6%

Smart multi-asset allocation framework can stack odds in your favor. Learn How
Based On 10-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with OBX
OBX-10.7%125.4%-2.85-
Sector ETF (XLV)12.5%16.8%0.6110.9%
Equity (SPY)15.4%18.0%0.73-13.7%
Gold (GLD)11.9%16.5%0.59-8.9%
Commodities (DBC)7.4%18.1%0.3316.3%
Real Estate (VNQ)5.7%20.7%0.23-23.8%
Bitcoin (BTCUSD)61.0%66.2%1.016.6%

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

Short Interest

Short Interest: As Of Date10152026
Short Interest: Shares Quantity1.1 Mil
Short Interest: % Change Since 930202622.3%
Average Daily Volume0.3 Mil
Days-to-Cover Short Interest3.2 days

SEC Filings

Expand for More
Report DateFiling DateFiling
03/31/202607/02/2026424B3
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Report DateFiling DateFiling
03/31/202607/02/2026424B3
Core Cache Last Updated: 11/4/2026