Tearsheet

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 Megatrend and thematic drivers
Megatrends include Biotechnology & Genomics, Precision Medicine, and Aging Population & Chronic Disease. Themes include Gene Editing & Therapy, Show more.
Weak multi-year price returns
2Y Excs Rtn is -6.6%
Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -243 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -676%
1  Meaningful short interest
Short Interest Days-to-CoverDTC = (Short Interest Share Quantity) / (Average Daily Trading Volume). Reflects how many days it would take to cover (close out) the short interest based on average volumes. High DTC can signify an increased risk of a short squeeze. is 11.18, 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 10%
Expensive valuation multiples
P/SPrice/Sales ratio is 129x
2   Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is -77%, Rev Chg QQuarterly Revenue Change % is -81%
3   Not cash flow generative
CFO/Rev LTMCash Flow from Operations / Revenue (Sales), Last Twelve Months (LTM) is -552%, FCF/Rev LTMFree Cash Flow / Revenue (Sales), Last Twelve Months (LTM) is -560%
4   Valuation getting more expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is 174%
5   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 -8.9%
0 Megatrend and thematic drivers
Megatrends include Biotechnology & Genomics, Precision Medicine, and Aging Population & Chronic Disease. Themes include Gene Editing & Therapy, Show more.
1 Weak multi-year price returns
2Y Excs Rtn is -6.6%
2 Meaningful short interest
Short Interest Days-to-CoverDTC = (Short Interest Share Quantity) / (Average Daily Trading Volume). Reflects how many days it would take to cover (close out) the short interest based on average volumes. High DTC can signify an increased risk of a short squeeze. is 11.18, 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 10%
3 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -243 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -676%
4 Expensive valuation multiples
P/SPrice/Sales ratio is 129x
5 Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is -77%, Rev Chg QQuarterly Revenue Change % is -81%
6 Not cash flow generative
CFO/Rev LTMCash Flow from Operations / Revenue (Sales), Last Twelve Months (LTM) is -552%, FCF/Rev LTMFree Cash Flow / Revenue (Sales), Last Twelve Months (LTM) is -560%
7 Valuation getting more expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is 174%
8 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 -8.9%

Valuation, Metrics & Events

ACLX Stock


Why The Stock Moved


Qualitative Assessment

AI Generated Analysis | Feedback

The period from August 31, 2025, to December 4, 2025, for Arcellx (ACLX) saw several key developments that could influence investor sentiment and stock movement. While a precise 5.1% stock movement cannot be definitively attributed to specific news without daily stock data for the future period, the following points highlight significant events during this time:

1. Positive Clinical Trial Updates for iMMagine-1 Study: Arcellx presented updated positive data from its Phase 2 pivotal iMMagine-1 study of anitocabtagene autoleucel (anito-cel) in patients with relapsed and/or refractory multiple myeloma (RRMM). The data, with a May 1, 2025 cutoff, showed a 97% overall response rate (ORR) and a 68% complete response/stringent complete response (CR/sCR) rate in 117 patients at a median follow-up of 12.6 months. Additionally, 93.3% of evaluable patients achieved minimal residual disease (MRD) negativity. These strong efficacy and safety results reinforce the potential of anito-cel.

2. FDA Regulatory Progress and Anticipated 2026 Commercial Launch: Arcellx held a pre-Biologics License Application (BLA) meeting with the FDA for anito-cel and reiterated its planned 2026 commercial launch for the therapy. Also, the company received FDA clearance for an Investigational New Drug (IND) application for ACLX-004, targeting CD33 and CD123 using its ARC-SparX platform, marking the advancement of another program into clinical trials.

Show more

Stock Movement Drivers

Return vs. Risk


Price Returns Compared

 202020212022202320242025Total [1]
Returns
ACLX Return---79%38%-10%122%
Peers Return6%-1%-7%-13%-25%2%-34%
S&P 500 Return16%27%-19%24%23%16%112%

Monthly Win Rates [3]
ACLX Win Rate--60%75%83%50% 
Peers Win Rate29%21%25%27%15%40% 
S&P 500 Win Rate58%75%42%67%75%70% 

Max Drawdowns [4]
ACLX Max Drawdown----13%-10%-31% 
Peers Max Drawdown-19%-10%-17%-24%-25%-2% 
S&P 500 Max Drawdown-31%-1%-25%-1%-2%-15% 


[1] Cumulative total returns since the beginning of 2020
[2] Peers: VRTX, ACSB, AIXC, ALPS, APRI.
[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 12/3/2025 (YTD)

How Low Can It Go

Unique KeyEventACLXS&P 500
2022 Inflation Shock2022 Inflation Shock  
2022 Inflation Shock% Loss% Loss-62.3%-25.4%
2022 Inflation Shock% Gain to Breakeven% Gain to Breakeven165.5%34.1%
2022 Inflation ShockTime to BreakevenTime to Breakeven21 days464 days

Compare to VRTX, ACSB, AIXC, ALPS, APRI


In The Past

Arcellx's stock fell -62.3% during the 2022 Inflation Shock from a high on 2/28/2022. A -62.3% loss requires a 165.5% 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 Arcellx (ACLX)

Better Bets than Arcellx (ACLX)

Trade Ideas

Select past ideas related to ACLX. 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
4.1%4.1%-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
-9.8%-9.8%-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
6.0%6.0%-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
9.7%9.7%-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
6.2%6.2%-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
4.1%4.1%-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
-9.8%-9.8%-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
6.0%6.0%-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
9.7%9.7%-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
6.2%6.2%-5.1%

Recent Active Movers

Recent Active Movers

More From Trefis

Peer Comparisons for Arcellx

Peers to compare with:

Financials

ACLXVRTXACSBAIXCALPSAPRIMedian
NameArcellx Vertex P.Acesis AIxCryptoALPS Aprinoia. 
Mkt Price72.94463.13-2.541.07-37.74
Mkt Cap4.1118.4----61.3
Rev LTM3611,723-0--36
Op Inc LTM-243-92--5---92
FCF LTM-2013,337--6---6
FCF 3Y Avg-312,064--10---10
CFO LTM-1983,718--6---6
CFO 3Y Avg-182,419--10---10

Growth & Margins

ACLXVRTXACSBAIXCALPSAPRIMedian
NameArcellx Vertex P.Acesis AIxCryptoALPS Aprinoia. 
Rev Chg LTM-77.0%10.3%-----33.3%
Rev Chg 3Y Avg-10.5%----10.5%
Rev Chg Q-81.0%11.0%-----35.0%
QoQ Delta Rev Chg LTM-37.0%2.7%-----17.2%
Op Mgn LTM-675.7%-0.8%-----338.2%
Op Mgn 3Y Avg-342.5%26.2%-----158.1%
QoQ Delta Op Mgn LTM-299.4%1.0%-----149.2%
CFO/Rev LTM-551.9%31.7%-----260.1%
CFO/Rev 3Y Avg-93.4%23.1%-----35.2%
FCF/Rev LTM-560.4%28.5%-----266.0%
FCF/Rev 3Y Avg-112.3%19.8%-----46.2%

Valuation

ACLXVRTXACSBAIXCALPSAPRIMedian
NameArcellx Vertex P.Acesis AIxCryptoALPS Aprinoia. 
Mkt Cap4.1118.4----61.3
P/S129.48.5----69.0
P/EBIT-21.522.4----0.5
P/E-21.327.2----3.0
P/CFO-23.526.9----1.7
Total Yield-4.7%3.7%-----0.5%
Dividend Yield0.0%0.0%----0.0%
FCF Yield 3Y Avg0.6%2.3%----1.4%
D/E0.00.0----0.0
Net D/E-0.1-0.0-----0.1

Returns

ACLXVRTXACSBAIXCALPSAPRIMedian
NameArcellx Vertex P.Acesis AIxCryptoALPS Aprinoia. 
1M Rtn-15.3%8.7%-----3.3%
3M Rtn2.4%16.8%----9.6%
6M Rtn11.4%3.9%----7.6%
12M Rtn-17.7%1.3%-----8.2%
3Y Rtn260.4%44.1%----152.2%
1M Excs Rtn-15.3%8.7%-----3.3%
3M Excs Rtn-4.3%11.3%----3.5%
6M Excs Rtn-3.3%-10.8%-----7.1%
12M Excs Rtn-30.7%-14.6%-----22.7%
3Y Excs Rtn189.0%-25.9%----81.5%

Comparison Analyses

Financials

Price Behavior

Short Interest

Short Interest: As Of Date11142025
Short Interest: Shares Quantity5,903,041
Short Interest: % Change Since 103120254.4%
Average Daily Volume528,131
Days-to-Cover Short Interest11.18
Basic Shares Quantity56,587,167
Short % of Basic Shares10.4%

SEC Filings

Expand for More

Report DateFiling DateFiling
93020251105202510-Q 9/30/2025
6302025807202510-Q 6/30/2025
3312025508202510-Q 3/31/2025
12312024227202510-K 12/31/2024
93020241107202410-Q 9/30/2024
6302024808202410-Q 6/30/2024
3312024509202410-Q 3/31/2024
12312023228202410-K 12/31/2023
93020231113202310-Q 9/30/2023
6302023814202310-Q 6/30/2023
3312023508202310-Q 3/31/2023
12312022329202310-K 12/31/2022
93020221114202210-Q 9/30/2022
6302022816202210-Q 6/30/2022
3312022512202210-Q 3/31/2022
12312021324202210-K 12/31/2021

Insider Activity

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 OwnerTitleFiling DateActionPriceSharesTransacted
Value
Value of
Held Shares
Form
0Heery ChristopherCHIEF MEDICAL OFFICER11172025Sell90.0034030,60025,560Form