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Werewolf Therapeutics (HOWL)


Market Price (12/18/2025): $1.07 | Market Cap: $49.0 Mil
Sector: Health Care | Industry: Biotechnology

Werewolf Therapeutics (HOWL)


Market Price (12/18/2025): $1.07
Market Cap: $49.0 Mil
Sector: Health Care
Industry: Biotechnology

Investment Highlights Why It Matters Which of these 2 stories sounds closer for this stock?

1. Generates cash flow

The stock generated 4% or more of the share price (called cash flow yield), and shows moderate 10-15% or more growth.

2. Riding a trend

Think Tesla during the pandemic of 2020 when EVs were riding a cultural high, or Nvidia in the current AI boom, or even Figma. These companies don’t have enough yield, or, enough growth, or both - however - they are riding a trend. They have momentum. These can be more volatile - they don’t have the floor of strong cash flow


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 -31%
Weak multi-year price returns
2Y Excs Rtn is -105%, 3Y Excs Rtn is -113%
Very low revenue
Rev LTMTotal Revenue or Sales, Last Twelve Months is 0
1 Megatrend and thematic drivers
Megatrends include Precision Medicine, and Aging Population & Chronic Disease. Themes include Targeted Therapies, Biopharmaceutical R&D, Show more.
  Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -72 Mil
2   Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is null, Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -1.6%
3   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 -85%
4   Key risks
HOWL key risks include [1] a total dependence on its unproven, 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 -31%
1 Megatrend and thematic drivers
Megatrends include Precision Medicine, and Aging Population & Chronic Disease. Themes include Targeted Therapies, Biopharmaceutical R&D, Show more.
2 Weak multi-year price returns
2Y Excs Rtn is -105%, 3Y Excs Rtn is -113%
3 Very low revenue
Rev LTMTotal Revenue or Sales, Last Twelve Months is 0
4 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -72 Mil
5 Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is null, Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -1.6%
6 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 -85%
7 Key risks
HOWL key risks include [1] a total dependence on its unproven, Show more.

Valuation, Metrics & Events

HOWL Stock


Why The Stock Moved


Qualitative Assessment

AI Generated Analysis | Feedback

Here are the key points for why Werewolf Therapeutics (HOWL) stock moved by -18.3% for the approximate time period from August 31, 2025, to December 18, 2025:

1. Werewolf Therapeutics announced on October 6, 2025, that it was not in compliance with Nasdaq's audit committee requirements following the passing of a board member, Dr. Alon Lazarus. This reduced the audit committee to two members, below the required minimum of three. The company was granted a cure period to regain compliance.

2. On November 4, 2025, Werewolf Therapeutics reported its Third Quarter 2025 financial results, indicating ongoing losses. While the company beat analysts' consensus estimates for earnings per share by reporting an adjusted loss of 36 cents compared to an expected 39 cents loss, it reported zero revenue. The company's shares had already fallen significantly in the quarter leading up to the report and year-to-date.

Show more

Stock Movement Drivers

Return vs. Risk


Price Returns Compared

 202020212022202320242025Total [1]
Returns
HOWL Return-83%88%-62%-27%
Peers Return-45%-10%18%-14%
S&P 500 Return16%27%-19%24%23%14%108%

Monthly Win Rates [3]
HOWL Win Rate25%42%42%25%42% 
Peers Win Rate44%42%45%37%42% 
S&P 500 Win Rate58%75%42%67%75%73% 

Max Drawdowns [4]
HOWL Max Drawdown-87%-13%-62%-57% 
Peers Max Drawdown-63%-63%-68%-58% 
S&P 500 Max Drawdown-31%-1%-25%-1%-2%-15% 


[1] Cumulative total returns since the beginning of 2020
[2] Peers: JANX, CRBU, AGEN, NKTX, ALXO.
[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] 2025 data is for the year up to 12/17/2025 (YTD)

How Low Can It Go

Unique KeyEventHOWLS&P 500
2022 Inflation Shock2022 Inflation Shock  
2022 Inflation Shock% Loss% Loss-92.5%-25.4%
2022 Inflation Shock% Gain to Breakeven% Gain to Breakeven1227.5%34.1%
2022 Inflation ShockTime to BreakevenTime to BreakevenNot Fully Recovered days464 days

Compare to VRTX, AIXC, ALPS, BBOT, EVMN


In The Past

Werewolf Therapeutics's stock fell -92.5% during the 2022 Inflation Shock from a high on 7/2/2021. A -92.5% loss requires a 1227.5% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth over time.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

About Werewolf Therapeutics (HOWL)

Better Bets than Werewolf Therapeutics (HOWL)

Latest Trefis Analyses

TitleTopic
0DASHBOARDS 
1Werewolf Therapeutics Earnings Notes 
Title
0ARTICLES

Trade Ideas

Select past ideas related to HOWL. For more, see Trefis Trade Ideas.

Unique KeyDateTickerCompanyCategoryTrade Strategy6M Fwd Rtn12M Fwd Rtn12M Max DD
CRL_11142025_Dip_Buyer_FCFYield11142025CRLCharles River Laboratories InternationalDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
16.3%16.3%-3.7%
GDRX_11142025_Dip_Buyer_High_CFO_Margins_ExInd_DE11142025GDRXGoodRxDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
-7.1%-7.1%-11.8%
ASTH_11142025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11142025ASTHAstrana 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
3.6%3.6%-5.5%
SGRY_11142025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11142025SGRYSurgery PartnersDip 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
1.6%1.6%-1.4%
TFX_11072025_Dip_Buyer_FCFYield11072025TFXTeleflexDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
14.1%14.1%-5.1%
Unique KeyDateTickerCompanyCategoryTrade Strategy6M Fwd Rtn12M Fwd Rtn12M Max DD
CRL_11142025_Dip_Buyer_FCFYield11142025CRLCharles River Laboratories InternationalDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
16.3%16.3%-3.7%
GDRX_11142025_Dip_Buyer_High_CFO_Margins_ExInd_DE11142025GDRXGoodRxDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
-7.1%-7.1%-11.8%
ASTH_11142025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11142025ASTHAstrana 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
3.6%3.6%-5.5%
SGRY_11142025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11142025SGRYSurgery PartnersDip 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
1.6%1.6%-1.4%
TFX_11072025_Dip_Buyer_FCFYield11072025TFXTeleflexDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
14.1%14.1%-5.1%

Recent Active Movers

Recent Active Movers

More From Trefis

Peer Comparisons for Werewolf Therapeutics

Peers to compare with:

Financials

HOWLJANXCRBUAGENNKTXALXOMedian
NameWerewolf.Janux Th.Caribou .Agenus Nkarta ALX Onco. 
Mkt Price1.0714.101.623.591.771.451.70
Mkt Cap0.00.90.20.10.20.10.1
Rev LTM0109107005
Op Inc LTM-72-144-147-63-122-108-115
FCF LTM-64-71-128-89-94-97-91
FCF 3Y Avg-50-55-123-172-109-114-112
CFO LTM-64-70-126-89-92-97-91
CFO 3Y Avg-50-53-116-163-87-113-100

Growth & Margins

HOWLJANXCRBUAGENNKTXALXOMedian
NameWerewolf.Janux Th.Caribou .Agenus Nkarta ALX Onco. 
Rev Chg LTM-100.0%-23.4%-19.0%-33.4%---28.4%
Rev Chg 3Y Avg-1.6%15.1%28.8%12.6%--13.9%
Rev Chg Q-2,177.9%8.6%20.4%--20.4%
QoQ Delta Rev Chg LTM-2,177.9%1.9%5.0%--5.0%
Op Mgn LTM--1,442.9%-1,577.4%-58.9%---1,442.9%
Op Mgn 3Y Avg--996.2%-1,110.8%-111.1%---996.2%
QoQ Delta Op Mgn LTM-31,559.2%127.0%31.0%--127.0%
CFO/Rev LTM--704.2%-1,351.7%-83.5%---704.2%
CFO/Rev 3Y Avg--536.2%-904.5%-139.5%---536.2%
FCF/Rev LTM--714.0%-1,374.2%-83.6%---714.0%
FCF/Rev 3Y Avg--555.0%-946.9%-147.7%---555.0%

Valuation

HOWLJANXCRBUAGENNKTXALXOMedian
NameWerewolf.Janux Th.Caribou .Agenus Nkarta ALX Onco. 
Mkt Cap0.00.90.20.10.20.10.1
P/S-151.616.31.1--16.3
P/EBIT-1.3-10.5-1.0---0.9-1.2
P/E-1.2-14.9-1.0-3.5-1.5-0.9-1.4
P/CFO-1.4-21.5-1.2-1.4-1.7-1.0-1.4
Total Yield-80.7%-6.7%-104.0%-28.6%-67.0%-110.2%-73.8%
Dividend Yield0.0%0.0%0.0%0.0%0.0%0.0%0.0%
FCF Yield 3Y Avg-58.3%-6.1%-53.5%---97.6%-55.9%
D/E0.40.00.2--0.10.1
Net D/E-0.3-0.6-0.8---0.5-0.6

Returns

HOWLJANXCRBUAGENNKTXALXOMedian
NameWerewolf.Janux Th.Caribou .Agenus Nkarta ALX Onco. 
1M Rtn16.4%-50.9%-14.3%-16.9%-2.2%-7.1%-10.7%
3M Rtn-23.6%-39.9%-5.8%-21.1%-7.3%38.1%-14.2%
6M Rtn-13.7%-37.9%26.6%-19.7%-2.7%198.0%-8.2%
12M Rtn-34.8%-76.3%-16.5%21.5%-22.0%-19.0%-20.5%
3Y Rtn-42.5%13.3%-79.1%-92.3%-74.8%-86.1%-77.0%
1M Excs Rtn15.6%-51.6%-15.0%-17.6%-2.9%-7.8%-11.4%
3M Excs Rtn-27.6%-43.6%-10.3%-22.4%-12.4%31.7%-17.4%
6M Excs Rtn-26.1%-50.3%14.2%-32.1%-15.1%185.7%-20.6%
12M Excs Rtn-46.2%-88.0%-26.3%6.6%-35.4%-11.1%-30.8%
3Y Excs Rtn-112.7%-70.5%-148.6%-161.8%-145.4%-155.6%-147.0%

Financials

Segment Financials

Revenue by Segment

$ Mil2024202320222021
Discovery and development of cancer therapeutics 16  
Total 16  


Assets by Segment
$ Mil2024202320222021
Discovery and development of cancer therapeutics175 17996
Total175 17996


Price Behavior

Short Interest

Short Interest: As Of Date11282025
Short Interest: Shares Quantity1,025,313
Short Interest: % Change Since 1115202532.5%
Average Daily Volume475,809
Days-to-Cover Short Interest2.15
Basic Shares Quantity45,804,042
Short % of Basic Shares2.2%

Earnings Returns History

Expand for More

 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
11/4/2025-7.6%-11.5%-23.9%
8/14/2025-2.2%-8.1%5.9%
3/11/20252.9%-4.5%-48.6%
11/7/2024-8.2%-16.0%-26.2%
8/8/20248.2%16.4%18.1%
3/7/2024-4.0%-11.5%-15.8%
11/14/20230.0%7.7%30.0%
8/10/20234.0%4.3%-0.4%
...
SUMMARY STATS   
# Positive887
# Negative667
Median Positive3.2%9.8%18.1%
Median Negative-4.8%-11.5%-19.4%
Max Positive14.0%29.1%55.2%
Max Negative-8.2%-16.0%-48.6%

SEC Filings

Expand for More

Report DateFiling DateFiling
93020251104202510-Q 9/30/2025
6302025814202510-Q 6/30/2025
3312025508202510-Q 3/31/2025
12312024311202510-K 12/31/2024
93020241107202410-Q 9/30/2024
6302024808202410-Q 6/30/2024
3312024503202410-Q 3/31/2024
12312023307202410-K 12/31/2023
93020231114202310-Q 9/30/2023
6302023810202310-Q 6/30/2023
3312023511202310-Q 3/31/2023
12312022323202310-K 12/31/2022
93020221110202210-Q 9/30/2022
6302022811202210-Q 6/30/2022
3312022510202210-Q 3/31/2022
12312021324202210-K 12/31/2021