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ZYBERNO

Stock Report

Updated Aug 23, 2026

Tenaris SA (TNRSF)

Materials • OTC

$26.95

Professional Investment Analysis

ZYBERNO SCORE →

Is it a great business? Is it getting better?

39.0/100

WEAK BUSINESS

Tenaris SA (TNRSF) scores 39/100 — weak fundamentals with mixed indicators requiring careful analysis before acting.

📊 How is the Zyberno Score calculated? +

The Zyberno Score answers one question: "Is this a quality business worth owning?" It's a 0-100 investment grade that evaluates business fundamentals across four critical dimensions, based on principles from Warren Buffett, Benjamin Graham, Peter Lynch, and Charlie Munger.

The 4 Core Categories (25 points each):

1. PROFITABILITY (25 pts)

Metrics: ROE, ROIC, Net Margin, Operating Margin
Thresholds: ROE >20% excellent • ROIC >20% excellent • Net Margin >20% excellent • Operating Margin >25% excellent

2. FINANCIAL STRENGTH (25 pts)

Metrics: Debt-to-Equity, Current Ratio, Interest Coverage, Altman Z-Score
Thresholds: D/E <0.3 excellent • Current Ratio >2.5 excellent • Interest Coverage >10x excellent • Altman Z >3.0 safe

3. CASH FLOW QUALITY (25 pts)

Metrics: Free Cash Flow, OCF vs Net Income, FCF Margin
Thresholds: Positive & growing FCF excellent • OCF/NI >1.2x excellent (cash earnings exceed accounting)

4. GROWTH & CONSISTENCY (25 pts)

Metrics: Revenue Growth, Net Income Growth, FCF Growth, Piotroski F-Score
Thresholds: Growth via log-linear regression • Piotroski 8-9 excellent, 6-7 good

Score Interpretation:

75-100

GREAT BUSINESS

65-74

GOOD BUSINESS

50-64

AVERAGE BUSINESS

30-49

WEAK BUSINESS

0-29

POOR BUSINESS

→ View full TNRSF quality analysis & detailed breakdown

VALUATION SIGNAL

MARGIN OF SAFETY

Is this stock cheap or expensive relative to what the business has historically generated for owners?

Margin of Safety unavailable — insufficient data for the owner-earnings DCF.

BRINA GAP ↗

Is the market underestimating or overestimating what this business is capable of going forward?

-5.1%

Slight Overestimate

💰 How is Margin of Safety calculated? +

Margin of Safety measures how much discount or premium you're paying relative to a stock's intrinsic value. It's Benjamin Graham's core principle: the larger the margin, the lower your downside risk.

Formula: (Intrinsic Value − Current Price) ÷ Intrinsic Value × 100%

How We Calculate Intrinsic Value (DCF Method):

Step 1: Calculate current Owner Earnings (OCF − Maintenance CapEx)

Step 2: Calculate company-specific growth rate using log-linear regression on 16 quarters of Owner Earnings

Step 3: Project 10 years forward using the calculated growth rate

Step 4: Discount each year's cash flow to present value using 10% discount rate

Step 5: Calculate terminal value using 3% perpetual growth rate

Step 6: Sum all discounted cash flows = Intrinsic Value

What The Percentages Mean:

+50% or more

EXCELLENT — Very undervalued

+25% to +50%

GOOD — Attractive discount

0% to +25%

FAIR — Reasonable value

0% to -25%

CAUTION — Slight premium

-25% or worse

POOR — Overvalued

"Price is what you pay, value is what you get." — Warren Buffett

→ View full TNRSF valuation analysis · → View full TNRSF Brina Gap analysis

📈 How is Brina Gap calculated? +

Brina Gap measures the difference between the growth a business can fundamentally sustain and the growth the market is already pricing in.

Formula: Fundamental Growth Rate − Market-Implied Growth Rate

The Two Components:

Fundamental Growth Rate = ROIC × Reinvestment Rate

What the business can sustainably grow at based on how much it reinvests and what return it earns on that capital. Grounded in historical financials.

Market-Implied Growth Rate = Reverse DCF

The growth rate the current Enterprise Value implicitly assumes. Calculated by back-solving a 10-year DCF model (10% WACC, 3% terminal growth) until the present value of projected cash flows equals EV.

What The Gap Means:

Gap > +5% Market Underestimates — potential upside

+2% to +5% Slight Underestimate

-2% to +2% Fairly Priced — market consensus matches fundamentals

-5% to -2% Slight Overestimate

Gap < -5% Market Overestimates — price embeds optimism fundamentals don't support

A positive gap (market underestimates) combined with a positive Margin of Safety is the strongest combined signal — the business is both cheap historically and forward economics are stronger than the price suggests.

Critical Financial Health Indicators

Return on Equity (Profitability):CRITICAL (0.0%)

Debt-to-Equity (Solvency Risk):EXCELLENT (0.00x)

Operating Margin (Operational Efficiency):CRITICAL (0.0%)

Return on Capital (Capital Efficiency):AVERAGE (10.5%)

📊 Valuation Trilogy

Three interconnected metrics for complete valuation analysis

Click any metric for full methodology and detailed analysis

Zyberno's Verdict

Tenaris SA (TNRSF) stock report — Zyberno Score 39/100 (WEAK BUSINESS). Full financial analysis on Zyberno.

According to Zyberno's DCF model, Tenaris SA (TNRSF) shows a Brina Gap of -5.1%, which weakens the case: based on the company's ROIC (10.5%) and reinvestment rate (-2.8%), the business can fundamentally grow at -0.3% — but the current enterprise value implies the market expects 4.8%.

DIVISION I: EXECUTIVE SUMMARY

A. Market Valuation

Market Price & Capitalization (2)

Current Price:26.95

Market Cap:$28.89B

Valuation Multiples (2)

P/B Ratio:1.72x

Peg Ratio:-999.00x

Enterprise Metrics (3)

Enterprise Value:$28.32B

Ev Ebitda Ratio:9.77x

Pfcf Ratio:14.22x

Price Action & Momentum (3)

12-1 Momentum:

+50.3% (85th pctile)

📈 Click to view full TNRSF Momentum analysis →

Momentum Percentile:85 / 100

% of 52-Week High:96.9%

B. Profitability Assessment

Return Metrics (5)

Roic:

10.5%

📊 Click to view full TNRSF ROIC analysis →

Reinvestment Rate:-2.8%

Fundamental Growth Rate (g):-0.3%

Market-Implied Growth Rate:4.8%

Brina Gap:

-5.1%

☷ Click to view full TNRSF Brina Gap analysis →

Margin Analysis (1)

Ebitda Margin:24.2%

Yield Metrics (2)

Earnings Yield:-$999.00

Dividend Yield:3.1%

C. Log-Linear Regression Growth Trends

D. Financial Stability

Liquidity Ratios (3)

Current Ratio:3.87x

Quick Ratio:2.33x

Cash Ratio:0.24x

Leverage Analysis (3)

Debt To Equity Ttm:0.00x

Debt-to-Equity Ratio:0.00x

Debt To Ebitda:0.00x

Coverage Ratios (2)

Interest Coverage Ratio:48.65x

Times Interest Earned:48.65

Capital Structure (4)

Working Capital:6,726,488,000.00

Cash And Cash Equivalents:572,647,000.00

Long Term Debt:$368.00K

Net Debt:-$572.28M

DIVISION II: FINANCIAL STATEMENTS ANALYSIS

A. Income Statement Analysis

Revenue Components (2)

$11.98B

Cost Of Revenue Ttm:$7.86B

Profitability Breakdown (2)

$4.12B$2.28B

Bottom Line Performance (3)

$1.97B

Income Before Tax:$0.00

Ebitda Ttm:2,899,386,000.00

Operating Expenses (5)

Operating Expenses:0.00

R And D Expense:0.00

Sga Expense:0.00

Income Tax Expense:$500.62M

Interest Expense:46,933,000.00

Expense Ratios (3)

R And D To Revenue Percentage:0.0%

Sga To Revenue Percentage:0.0%

Ebitda Margin:24.2%

B. Balance Sheet Analysis

Asset Composition (5)

Total Assets:$20.07B

Current Assets:$9.07B

Ppe Net:6,205,082,000.00

Goodwill:0.00

Intangible Assets:$1.36B

Liability Structure (4)

Total Liabilities:3,243,245,000.00

Current Liabilities:2,346,394,000.00

Long Term Debt:$368.00K

Short Term Debt:$0.00

Equity & Capital (3)

Equity:$16.83B

Retained Earnings:$0.00

Common Stock:0.00

Working Capital Items (3)

Accounts Receivable:0.00

Inventory:3,602,058,000.00

Accounts Payable:872,913,000.00

Special Items (2)

Contract Liabilities:0.00

Stock Based Compensation:0.00

C. Cash Flow Analysis

Operating Activities (2)

$2.60B$2.03B

Investment Activities (1)

Investing Cash Flow:-$192.60M

Financing Activities (3)

Financing Cash Flow:-$2.48B

Dividends Paid Ttm:900,361,000.00

Stock Repurchase:0.00

Capital Transactions (3)

Common Stock Issuance:0.00

Long Term Debt Issuance:$0.00

Long Term Debt Repayments:$0.00

DIVISION III: OPERATIONAL METRICS

A. Per Share Analysis

Earnings Per Share (1)

Earnings Per Share Ttm:$1.84

Revenue & Cash Per Share (2)

Sales Per Share Ttm:11.18

Operating Cash Flow Per Share:$2.42

Book Value & Capital (2)

Book Value Per Share:$15.70

Cash Per Share:0.53

Dividend Policy (1)

Dividend Payout Ratio:-999.00x

B. Operational Efficiency

Asset Utilization (2)

Asset Turnover Ttm:0.60x

Working Capital Turnover Ttm:1.78x

Receivables Management (2)

Receivables Turnover Ttm:-999.00x

Days Sales Outstanding Ttm:-999.00

Inventory Management (2)

Inventory Turnover Ttm:2.18x

Days Inventory Outstanding Ttm:167.26

Payables & Cash Cycle (2)

Days Payable Outstanding:40.53

Cash Conversion Cycle:-872.28

C. Quality & Risk Metrics

Financial Quality Scores (2)

Financial Strength Score:100.00

Quality Score:100.00

Market Metrics (2)

Beta:0.00x

Volatility Category:unknown

DIVISION IV: INVESTMENT ANALYSIS

A. Value Investment Framework

Damodaran Growth Analysis (4)

Reinvestment Rate:-2.8%

Fundamental Growth Rate (g):-0.3%

Market-Implied Growth Rate:4.8%

Brina Gap:

-5.1%

☷ Click to view full TNRSF Brina Gap analysis →

B. Log-Linear Regression Growth Analysis

C. Company Profile & Context

Corporate Information (6)

Symbol:TNRSF

Company Name:Tenaris SA

Sector:Materials

Industry:Steel & Metals

Exchange:OTC

Country:Luxembourg

Market Classification (3)

Market Cap Category:N/A

Price Category:medium

Volume Category:N/A

Share Structure (3)

Shares Outstanding:1.07B

Shares Outstanding Basic:0

Shares Outstanding Diluted:0

Data Processing Info (3)

Processing Version:v3.0

Last Updated:2026-08-23 22:44:40 UTC

Data Timestamp:2026-08-23T22:44:40.840501