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Cytosorbents Corp (CTSO) Stock Fundamental Analysis & AI Rating 2026

CTSO Nasdaq Surgical & Medical Instruments & Apparatus DE CIK: 0001175151
Updated This Month • Analysis: Mar 23, 2026 • SEC Data: 2025-09-30
Combined AI Rating
SELL
84% Confidence
STRONG AGREEMENT
SELL
85% Conf
SELL
82% Conf

📊 CTSO Key Takeaways

Revenue: $27.8M
Net Margin: -9.7%
Free Cash Flow: $-7.6M
Current Ratio: 2.11x
Debt/Equity: 1.61x
EPS: $-0.04
AI Rating: SELL with 85% confidence
Cytosorbents Corp (CTSO) receives a SELL rating with 84% confidence from our AI fundamental analysis based on SEC 10-K filings. With revenue of $27.8M, net profit margin of -9.7%, and return on equity (ROE) of -29.9%, Cytosorbents Corp demonstrates mixed fundamentals in the Healthcare sector. Below is our complete CTSO stock analysis for 2026.

Is Cytosorbents Corp (CTSO) a Good Investment?

Claude

Cytosorbents demonstrates strong revenue growth (+14.5% YoY) and excellent gross margins (70.7%), indicating viable product-market fit. However, the company is deeply unprofitable with negative operating margins (-37.2%), burning cash operationally (-$7.6M), and faces elevated leverage (1.61x D/E) that constrains financial flexibility during a critical growth phase.

ChatGPT

Cytosorbents shows decent top-line growth and strong gross margins, but the business remains structurally unprofitable at the operating level and is consuming cash. The balance sheet still supports near-term operations, yet elevated leverage, negative free cash flow, and thin equity make the growth profile lower quality until operating losses narrow materially.

Why Buy Cytosorbents Corp Stock? CTSO Key Strengths

Claude
  • + Revenue growth of 14.5% YoY demonstrates market demand for products
  • + Exceptional gross margin of 70.7% reflects pricing power and operational efficiency at production level
  • + Adequate near-term liquidity with current ratio of 2.11x and $7.5M cash
ChatGPT
  • + Revenue grew 14.5% year over year, indicating continued commercial demand
  • + Gross margin of 70.7% suggests attractive product-level economics
  • + Current ratio of 2.11x and quick ratio of 1.71x provide reasonable near-term liquidity

CTSO Stock Risks: Cytosorbents Corp Investment Risks

Claude
  • ! Persistent operating losses (-$10.4M) and negative net income despite revenue growth signal inability to control operating expenses
  • ! Negative operating cash flow (-$7.6M) indicates business is not self-sustaining and burning capital to fund operations
  • ! High leverage (1.61x D/E) with $14.6M long-term debt limits financial flexibility and increases refinancing risk as cash depletes
  • ! No insider buying activity in past 90 days suggests management lacks confidence despite operational challenges
ChatGPT
  • ! Operating margin of -37.2% shows the company is still far from sustainable profitability
  • ! Free cash flow of -7.61M and negative operating cash flow indicate ongoing cash burn
  • ! Debt-to-equity of 1.61x with only 9.02M of equity leaves limited balance-sheet flexibility

Key Metrics to Watch

Claude
  • * Path to operating profitability and operating margin improvement trajectory
  • * Operating cash flow inflection point and cash burn rate sustainability
  • * Debt refinancing risks and covenant compliance given deteriorating operational metrics
ChatGPT
  • * Operating cash flow and free cash flow trend
  • * Operating margin improvement versus revenue growth

Cytosorbents Corp (CTSO) Financial Metrics & Key Ratios

Revenue
$27.8M
Net Income
$-2.7M
EPS (Diluted)
$-0.04
Free Cash Flow
$-7.6M
Total Assets
$45.8M
Cash Position
$7.5M

💡 AI Analyst Insight

Strong liquidity with a 2.11x current ratio provides a solid financial cushion.

CTSO Profit Margin, ROE & Profitability Analysis

Gross Margin 70.7%
Operating Margin -37.2%
Net Margin -9.7%
ROE -29.9%
ROA -5.9%
FCF Margin -27.3%

CTSO vs Healthcare Sector: How Cytosorbents Corp Compares

How Cytosorbents Corp compares to Healthcare sector averages

Net Margin
CTSO -9.7%
vs
Sector Avg 12.0%
CTSO Sector
ROE
CTSO -29.9%
vs
Sector Avg 15.0%
CTSO Sector
Current Ratio
CTSO 2.1x
vs
Sector Avg 2.0x
CTSO Sector
Debt/Equity
CTSO 1.6x
vs
Sector Avg 0.6x
CTSO Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is Cytosorbents Corp Stock Overvalued? CTSO Valuation Analysis 2026

Based on fundamental analysis, Cytosorbents Corp shows some fundamental concerns relative to the Healthcare sector in 2026.

Return on Equity
-29.9%
Sector avg: 15%
Net Profit Margin
-9.7%
Sector avg: 12%
Revenue Growth
N/A
Year-over-year
Debt/Equity
1.61x
Sector avg: 0.6x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

Cytosorbents Corp Balance Sheet: CTSO Debt, Cash & Liquidity

Current Ratio
2.11x
Quick Ratio
1.71x
Debt/Equity
1.61x
Debt/Assets
80.3%
Interest Coverage
N/A
Long-term Debt
$14.6M

CTSO Revenue & Earnings Growth: 5-Year Financial Trend

CTSO 5-year financial data: Year 2021: Revenue $43.2M, Net Income -$19.3M, EPS $-0.15. Year 2022: Revenue $43.2M, Net Income -$7.8M, EPS $-0.10. Year 2023: Revenue $43.2M, Net Income -$24.6M, EPS $-0.10. Year 2024: Revenue $35.6M, Net Income -$29.2M, EPS $-0.17. Year 2025: Revenue $37.1M, Net Income -$20.7M, EPS $-0.38.
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: Cytosorbents Corp's revenue has declined by 14% over the 5-year period, indicating business contraction. The most recent EPS of $-0.38 indicates the company is currently unprofitable.

CTSO Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
-27.3%
Free cash flow / Revenue

CTSO Quarterly Earnings & Performance

Quarterly financial performance data for Cytosorbents Corp including revenue, net income, and earnings per share.
Quarter Revenue Net Income EPS
Q3 2025 $8.6M -$2.7M $-0.04
Q2 2025 $8.8M $469.0K $0.01
Q1 2025 $8.7M -$1.5M $-0.02
Q3 2024 $8.8M -$2.3M $-0.04
Q2 2024 $9.4M -$4.1M $-0.08
Q1 2024 $9.4M -$6.4M $-0.12
Q3 2023 $8.1M -$9.2M $-0.21
Q2 2023 $8.5M -$6.2M $-0.14

Data sourced from SEC EDGAR 10-Q quarterly filings. Figures may represent quarterly or cumulative values.

Cytosorbents Corp Dividends, Buybacks & Capital Allocation

Operating Cash Flow
-$7.6M
Cash generated from operations
Capital Expenditures
$56.0K
Investment in assets
Dividends
None
No dividend program

CTSO SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for Cytosorbents Corp (CIK: 0001175151)

📋 Recent SEC Filings

Date Form Document Action
Apr 15, 2026 10-K/A ctso-20251231x10ka.htm View →
Apr 2, 2026 8-K tm2611004d1_8k.htm View →
Mar 30, 2026 10-K ctso-20251231x10k.htm View →
Mar 25, 2026 8-K a8k.htm View →
Nov 20, 2025 4 xslF345X05/tm2531906-1_4seq1.xml View →

Frequently Asked Questions about CTSO

What is the AI rating for CTSO?

Cytosorbents Corp (CTSO) has a Combined AI Rating of SELL from Claude (SELL) and ChatGPT (SELL) with 84% combined confidence, based on fundamental analysis of SEC EDGAR filings.

What are CTSO's key strengths?

Claude: Revenue growth of 14.5% YoY demonstrates market demand for products. Exceptional gross margin of 70.7% reflects pricing power and operational efficiency at production level. ChatGPT: Revenue grew 14.5% year over year, indicating continued commercial demand. Gross margin of 70.7% suggests attractive product-level economics.

What are the risks of investing in CTSO?

Claude: Persistent operating losses (-$10.4M) and negative net income despite revenue growth signal inability to control operating expenses. Negative operating cash flow (-$7.6M) indicates business is not self-sustaining and burning capital to fund operations. ChatGPT: Operating margin of -37.2% shows the company is still far from sustainable profitability. Free cash flow of -7.61M and negative operating cash flow indicate ongoing cash burn.

What is CTSO's revenue and growth?

Cytosorbents Corp reported revenue of $27.8M.

Does CTSO pay dividends?

Cytosorbents Corp does not currently pay dividends.

Where can I find CTSO SEC filings?

Official SEC filings for Cytosorbents Corp (CIK: 0001175151) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is CTSO's EPS?

Cytosorbents Corp has a diluted EPS of $-0.04.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined rating reflects both perspectives for balanced insights.

Is CTSO a good stock to buy right now?

Based on our AI fundamental analysis in April 2026, Cytosorbents Corp has a SELL rating with 84% confidence. Review the strengths and risks sections above before making a decision. This is not investment advice.

Is CTSO stock overvalued or undervalued?

Valuation metrics for CTSO: ROE of -29.9% (sector avg: 15%), net margin of -9.7% (sector avg: 12%). Compare these metrics with sector averages to assess valuation.

Should I buy CTSO stock in 2026?

Our dual AI analysis gives Cytosorbents Corp a combined SELL rating for 2026. Revenue is data pending, with profitability at or below sector average. Always conduct your own research.

What is CTSO's free cash flow?

Cytosorbents Corp's operating cash flow is $-7.6M, with capital expenditures of $56.0K. FCF margin is -27.3%.

How does CTSO compare to other Healthcare stocks?

Vs Healthcare sector averages: Net margin -9.7% (avg: 12%), ROE -29.9% (avg: 15%), current ratio 2.11 (avg: 2).

Is Cytosorbents Corp carrying too much debt?

CTSO has a debt-to-equity ratio of 1.61x, which is above the Healthcare sector average of 0.6x. However, the current ratio of 2.11 suggests adequate short-term liquidity.

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Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: Mar 23, 2026 | Data as of: 2025-09-30 | Powered by Claude AI