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ZYBERNO

Stock Report

Updated Apr 26, 2026

BLONDER TONGUE LABORATORIES, INC. (BDRL)

Technology • Over The Counter

$0.00

Professional Investment Analysis

ZYBERNO SCORE →

Is it a great business? Is it getting better?

1.0/100

POOR BUSINESS

BLONDER TONGUE LABORATORIES, INC. (BDRL) scores 1/100 — concerning metrics indicating significant structural or financial risks.

📊 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 BDRL 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?

+100.0%

Undervalued

Growth gap unavailable — insufficient data for reverse DCF calculation.

🎯 Expected Annual Return →

241.8%

5-year annualised assuming price converges to intrinsic value

💰 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 BDRL valuation analysis · → View full BDRL 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 (-198.3%)

Debt-to-Equity (Solvency Risk):CRITICAL (6.17x)

Operating Margin (Operational Efficiency):CRITICAL (-11.8%)

Return on Capital (Capital Efficiency):CRITICAL (-30.1%)

📊 Valuation Trilogy

Three interconnected metrics for complete valuation analysis

Click any metric for full methodology and detailed analysis

Zyberno's Verdict

BLONDER TONGUE LABORATORIES, INC. (BDRL) stock report — Zyberno Score 1/100 (POOR BUSINESS), Margin of Safety +100.0%, 242% expected annual return. Full financial analysis on Zyberno.

According to Zyberno's DCF model, BLONDER TONGUE LABORATORIES, INC. (BDRL) trades at $0.00 against an estimated intrinsic value per share of $25.95 — a +100.0% Margin of Safety based on Owner Earnings of $203.00K TTM, projected at -32.1% growth for 10 years with a 2.5% terminal growth rate. Zyberno's model translates this into a 5-year expected return of 241.8% annually.

Over the trailing twelve months, BDRL generated $203.00K in Owner Earnings. Capital was deployed as follows: $7.00K invested in capital expenditures. Reinvestment rate: -8.6%. Owner Earnings have declined at 32.1% annually over the trailing five years using log-linear regression.

DIVISION I: EXECUTIVE SUMMARY

A. Market Valuation

Market Price & Capitalization (2)

Current Price:0.00

Market Cap:$106.79

Valuation Multiples (3)

P/B Ratio:0.00x

P/S Ratio:0.00x

Peg Ratio:-999.00x

Enterprise Metrics (1)

Enterprise Value:$4.23M

B. Profitability Assessment

Return Metrics (5)

ROE:

-198.3%

📊 Click to view full BDRL ROE analysis →

ROA:-21.6%

Roic:

-30.1%

📊 Click to view full BDRL ROIC analysis →

Reinvestment Rate:-8.6%

Fundamental Growth Rate (g):2.6%

Margin Analysis (3)

Operating Margin Ttm:-11.8%

Net Margin Ttm:-16.1%

Ebitda Margin:-11.2%

TTM Performance (3)

Gross Margin Ttm:30.2%

Operating Margin Ttm:-11.8%

Net Margin Ttm:-16.1%

Yield Metrics (3)

Earnings Yield:-$9.57K

Owner Earnings Yield:$661.18K

Dividend Yield:0.0%

C. Log-Linear Regression Growth Trends

Revenue Growth (Linear) (1)

Revenue Growth Rate (Linear):-4.2%

Cash Flow Growth (Linear) (2)

Free Cash Flow Growth Rate (Linear):3.6%

Operating Cash Flow Growth Rate (Linear):-16.1%

D. Financial Stability

Liquidity Ratios (3)

Current Ratio:0.98x

Quick Ratio:0.49x

Cash Ratio:0.01x

Leverage Analysis (3)

Debt To Equity Ttm:6.17x

Debt-to-Equity Ratio:6.17x

Debt To Ebitda:-999.00x

Coverage Ratios (2)

Interest Coverage Ratio:-9.03x

Times Interest Earned:-9.03

Capital Structure (4)

Working Capital:-188,000.00

Cash And Cash Equivalents:79,000.00

Long Term Debt:$4.24M

Net Debt:$4.23M

DIVISION II: FINANCIAL STATEMENTS ANALYSIS

A. Income Statement Analysis

Revenue Components (2)

Revenue TTM: $18.12M

Linear Growth: -4.2%

📊 Click to view full BDRL Revenue analysis & methodology →

Cost Of Revenue Ttm:$12.65M

Profitability Breakdown (2)

Gross profit TTM: $5.46M

Linear Growth: -5.0%

📊 Click to view full BDRL Gross Profit analysis & methodology →

-$2.13M

Bottom Line Performance (3)

-$2.92M

Income Before Tax:-$2.22M

Ebitda Ttm:-2,031,000.00

Operating Expenses (5)

Operating Expenses:1,729,000.00

R And D Expense:357,000.00

Sga Expense:895,000.00

Income Tax Expense:$18.00K

Interest Expense:236,000.00

Expense Ratios (3)

R And D To Revenue Percentage:6.8%

Sga To Revenue Percentage:17.0%

Ebitda Margin:-11.2%

B. Balance Sheet Analysis

Asset Composition (5)

Total Assets:$15.01M

Current Assets:$7.97M

Ppe Net:238,000.00

Goodwill:493,000.00

Intangible Assets:$741.00K

Liability Structure (4)

Total Liabilities:13,931,000.00

Current Liabilities:8,155,000.00

Long Term Debt:$4.24M

Short Term Debt:$70.00K

Equity & Capital (3)

Equity:$1.07M

Retained Earnings:-$30.23M

Common Stock:13,000.00

Working Capital Items (3)

Accounts Receivable:3,389,000.00

Inventory:3,966,000.00

Accounts Payable:2,431,000.00

Special Items (2)

Contract Liabilities:18,115,000.00

Stock Based Compensation:469,000.00

C. Cash Flow Analysis

Operating Activities (2)

Operating cash flow TTM: $210.00K

Linear Growth: -16.1%

Free cash flow TTM: -$696.00K

Linear Growth: 3.6%

📊 Click to view full BDRL Free Cash Flow analysis & methodology →

Investment Activities (2)

Investing Cash Flow:-$13.00K

Capital Expenditures Ttm:-7,000.00

Financing Activities (3)

Financing Cash Flow:-$285.00K

Dividends Paid Ttm:0.00

Stock Repurchase:0.00

Capital Transactions (3)

Common Stock Issuance:257,000.00

Long Term Debt Issuance:$1.77M

Long Term Debt Repayments:$67.00K

Non-Cash Items (1)

Depreciation Amortization Ttm:20,000.00

DIVISION III: OPERATIONAL METRICS

A. Per Share Analysis

Earnings Per Share (3)

EPS (Basic TTM):-0.02

-$0.22

Earnings Per Share Ttm:-$218.74

Revenue & Cash Per Share (2)

Sales Per Share Ttm:1,357.03

Operating Cash Flow Per Share:-$103.53

Book Value & Capital (2)

Book Value Per Share:$80.46

Cash Per Share:5.92

Dividend Policy (1)

Dividend Payout Ratio:-999.00x

B. Operational Efficiency

Asset Utilization (2)

Asset Turnover Ttm:1.34x

Working Capital Turnover Ttm:-999.00x

Receivables Management (2)

Receivables Turnover Ttm:5.35x

Days Sales Outstanding Ttm:68.29

Inventory Management (2)

Inventory Turnover Ttm:0.01x

Days Inventory Outstanding Ttm:36,189.75

Payables & Cash Cycle (2)

Days Payable Outstanding:22,182.88

Cash Conversion Cycle:14,075.16

C. Quality & Risk Metrics

Financial Quality Scores (2)

Financial Strength Score:20.00

Quality Score:35.00

Market Metrics (2)

Beta:0.00x

Volatility Category:unknown

DIVISION IV: INVESTMENT ANALYSIS

A. Value Investment Framework

Owner Earnings Analysis (3)

Owner earnings TTM: $203.00K

Linear Growth: -32.1%

📊 Click to view full BDRL Owner Earnings analysis & methodology →

Owner Earnings Per Share:$15.21

Owner Earnings Yield:$661.18K

Growth Assessment (1)

Owner Earnings Growth Rate:-$32.14

Damodaran Growth Analysis (2)

Reinvestment Rate:-8.6%

Fundamental Growth Rate (g):2.6%

Intrinsic Value Models (1)

Intrinsic Value:

$346.42K

📊 Click to view full BDRL DCF valuation →

Margin of Safety (1)

Margin Of Safety:

100.0%

📊 Click to view full BDRL valuation analysis →

Return Scenarios (1)

Theoretical 5-Year Return:

241.8%

📊 Click to view full BDRL expected return analysis →

Investment Assessment (1)

Buffett Assessment:Excellent margin of safety

B. Log-Linear Regression Growth Analysis

Growth Rates (Log-Linear Regression) (1)

Revenue Growth Rate (Linear):-4.2%

Cash Flow Growth Rates (2)

Free Cash Flow Growth Rate (Linear):3.6%

Operating Cash Flow Growth Rate (Linear):-16.1%

Other Growth Rates (3)

Gross Profit Growth Rate (Linear):-0.1%

Book Value Growth Rate (Linear):-39.7%

Owner Earnings Growth Rate:-$32.14

C. Company Profile & Context

Corporate Information (6)

Symbol:BDRL

Company Name:BLONDER TONGUE LABORATORIES, INC.

Sector:Technology

Industry:Communications Equipment

Exchange:Over The Counter

Country:Unknown

Market Classification (3)

Market Cap Category:N/A

Price Category:penny

Volume Category:N/A

Share Structure (3)

Shares Outstanding:13.35K

Shares Outstanding Basic:13.35K

Shares Outstanding Diluted:13.28K

Data Processing Info (3)

Processing Version:v3.0

Last Updated:2026-04-26 21:12:03 UTC

Data Timestamp:2026-03-28T19:04:56.671484