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ZYBERNO

Stock Report

Updated Sep 1, 2026

EARTH SCIENCE TECH, INC. (ETST)

Healthcare • OTC

$0.09

Professional Investment Analysis

ZYBERNO SCORE →

Is it a great business? Is it getting better?

71.0/100

GOOD BUSINESS

EARTH SCIENCE TECH, INC. (ETST) scores 71/100 — strong fundamentals with solid profitability and healthy cash flow generation.

📊 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 ETST 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?

+9.4%

Market Underestimates

💰 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 ETST valuation analysis · → View full ETST 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):EXCELLENT (54.4%)

Debt-to-Equity (Solvency Risk):EXCELLENT (0.10x)

Operating Margin (Operational Efficiency):AVERAGE (10.5%)

Return on Capital (Capital Efficiency):EXCELLENT (39.0%)

📊 Valuation Trilogy

Three interconnected metrics for complete valuation analysis

Click any metric for full methodology and detailed analysis

Zyberno's Verdict

EARTH SCIENCE TECH, INC. (ETST) stock report — Zyberno Score 71/100 (GOOD BUSINESS). Full financial analysis on Zyberno.

According to Zyberno's DCF model, EARTH SCIENCE TECH, INC. (ETST) shows a Brina Gap of +9.4%, which strengthens the case: based on the company's ROIC (39.0%) and reinvestment rate (17.1%), the business can fundamentally grow at 6.7% — but the current enterprise value implies the market expects -2.8%.

Over the trailing twelve months, ETST generated $90.53K in Owner Earnings. Capital was deployed as follows: $392.19K returned via share buybacks. Reinvestment rate: 17.1%.

DIVISION I: EXECUTIVE SUMMARY

A. Market Valuation

Market Price & Capitalization (2)

Current Price:0.09

Market Cap:$26.10M

Valuation Multiples (4)

P/E Ratio:

9.00x

📊 Click to view full ETST P/E analysis →

P/B Ratio:3.54x

P/S Ratio:0.74x

Peg Ratio:-999.00x

Enterprise Metrics (3)

Enterprise Value:$25.82M

Ev Ebitda Ratio:6.47x

Pfcf Ratio:22.55x

Price Action & Momentum (3)

12-1 Momentum:

-46.7% (28th pctile)

📈 Click to view full ETST Momentum analysis →

Momentum Percentile:28 / 100

% of 52-Week High:38.0%

B. Profitability Assessment

Return Metrics (7)

ROE:

54.4%

📊 Click to view full ETST ROE analysis →

ROA:35.1%

Roic:

39.0%

📊 Click to view full ETST ROIC analysis →

Reinvestment Rate:17.1%

Fundamental Growth Rate (g):6.7%

Market-Implied Growth Rate:-2.8%

Brina Gap:

9.4%

☷ Click to view full ETST Brina Gap analysis →

Margin Analysis (3)

Operating Margin Ttm:10.5%

Net Margin Ttm:8.7%

Ebitda Margin:11.3%

TTM Performance (3)

Gross Margin Ttm:72.4%

Operating Margin Ttm:10.5%

Net Margin Ttm:8.7%

Yield Metrics (3)

Earnings Yield:$10.86

Owner Earnings Yield:$0.34

Dividend Yield:0.0%

C. Log-Linear Regression Growth Trends

Earnings Surprise (SUE) (3)

Earnings Surprise (SUE):

+0.06

📊 Click to view full ETST Earnings Surprise analysis →

EPS Surprise vs Expected:269.0%

Latest Earnings Filed:2026-08-07

Revenue Growth (Linear) (1)

Revenue Growth Rate (Linear):100.0%

Earnings Growth (Linear) (1)

Net Income Growth Rate (Linear):47.1%

Cash Flow Growth (Linear) (1)

Operating Cash Flow Growth Rate (Linear):59.1%

Operating Growth (Linear) (1)

Operating Income Growth Rate (Linear):48.7%

D. Financial Stability

Liquidity Ratios (3)

Current Ratio:1.77x

Quick Ratio:1.48x

Cash Ratio:0.22x

Leverage Analysis (3)

Debt To Equity Ttm:0.10x

Debt-to-Equity Ratio:0.10x

Debt To Ebitda:0.09x

Coverage Ratios (2)

Interest Coverage Ratio:94.67x

Times Interest Earned:94.67

Capital Structure (4)

Working Capital:2,217,645.00

Cash And Cash Equivalents:631,118.00

Long Term Debt:$139.20K

Net Debt:-$277.95K

DIVISION II: FINANCIAL STATEMENTS ANALYSIS

A. Income Statement Analysis

Revenue Components (2)

Revenue TTM: $35.22M

Linear Growth: 100.0%

📊 Click to view full ETST Revenue analysis & methodology →

Cost Of Revenue Ttm:$9.73M

Profitability Breakdown (2)

Gross profit TTM: $25.49M

Linear Growth: 100.0%

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

Operating income TTM: $3.70M

Linear Growth: 48.7%

📊 Click to view full ETST Operating Income analysis & methodology →

Bottom Line Performance (3)

Net income TTM: $3.07M

Linear Growth: 47.1%

📊 Click to view full ETST Net Income analysis & methodology →

Income Before Tax:$3.40M

Ebitda Ttm:3,994,124.00

Operating Expenses (5)

Operating Expenses:22,744,966.00

R And D Expense:0.00

Sga Expense:3,832,728.00

Income Tax Expense:$398.95K

Interest Expense:32,631.00

Expense Ratios (3)

R And D To Revenue Percentage:0.0%

Sga To Revenue Percentage:42.5%

Ebitda Margin:11.3%

B. Balance Sheet Analysis

Asset Composition (5)

Total Assets:$10.37M

Current Assets:$5.09M

Ppe Net:1,498,431.00

Goodwill:2,654,554.00

Intangible Assets:$202.18K

Liability Structure (4)

Total Liabilities:3,009,743.00

Current Liabilities:2,870,548.00

Long Term Debt:$139.20K

Short Term Debt:$213.97K

Equity & Capital (3)

Equity:$7.36M

Retained Earnings:-$23.38M

Common Stock:300,000,000.00

Working Capital Items (3)

Accounts Receivable:845,945.00

Inventory:854,074.00

Accounts Payable:1,514,696.00

Special Items (2)

Contract Liabilities:0.00

Stock Based Compensation:0.00

C. Cash Flow Analysis

Operating Activities (2)

Operating cash flow TTM: $1.94M

Linear Growth: 59.1%

$1.18M

Investment Activities (1)

Investing Cash Flow:-$480.62K

Financing Activities (3)

Financing Cash Flow:-$392.19K

Dividends Paid Ttm:0.00

Stock Repurchase:392,191.00

Capital Transactions (3)

Common Stock Issuance:0.00

Long Term Debt Issuance:$179.49K

Long Term Debt Repayments:$0.00

Non-Cash Items (1)

Depreciation Amortization Ttm:291,139.00

DIVISION III: OPERATIONAL METRICS

A. Per Share Analysis

Earnings Per Share (3)

EPS (Basic TTM):0.01

Eps diluted TTM: $0.01

Linear Growth: 21.8%

📊 Click to view full ETST EPS analysis & methodology →

Earnings Per Share Ttm:$0.01

Revenue & Cash Per Share (2)

Sales Per Share Ttm:0.12

Operating Cash Flow Per Share:$0.01

Book Value & Capital (2)

Book Value Per Share:$0.03

Cash Per Share:0.00

Dividend Policy (1)

Dividend Payout Ratio:0.00x

B. Operational Efficiency

Asset Utilization (2)

Asset Turnover Ttm:4.04x

Working Capital Turnover Ttm:15.88x

Receivables Management (2)

Receivables Turnover Ttm:41.64x

Days Sales Outstanding Ttm:8.77

Inventory Management (2)

Inventory Turnover Ttm:11.40x

Days Inventory Outstanding Ttm:32.02

Payables & Cash Cycle (2)

Days Payable Outstanding:56.80

Cash Conversion Cycle:-16.00

C. Quality & Risk Metrics

Financial Quality Scores (2)

Financial Strength Score:100.00

Quality Score:80.00

Market Metrics (2)

Beta:0.00x

Volatility Category:unknown

DIVISION IV: INVESTMENT ANALYSIS

A. Value Investment Framework

Owner Earnings Analysis (3)

Owner earnings TTM: $90.53K

Linear Growth: 0.0%

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

Owner Earnings Per Share:$0.00

Owner Earnings Yield:$0.34

Damodaran Growth Analysis (4)

Reinvestment Rate:17.1%

Fundamental Growth Rate (g):6.7%

Market-Implied Growth Rate:-2.8%

Brina Gap:

9.4%

☷ Click to view full ETST Brina Gap analysis →

Return Scenarios (1)

Forward Expected Return (Yield + Growth):

7.0%

📊 Click to view full ETST expected return analysis →

Investment Assessment (1)

Buffett Assessment:Overvalued

B. Log-Linear Regression Growth Analysis

Growth Rates (Log-Linear Regression) (3)

Revenue Growth Rate (Linear):100.0%

Net Income Growth Rate (Linear):47.1%

Operating Income Growth Rate (Linear):48.7%

Cash Flow Growth Rates (1)

Operating Cash Flow Growth Rate (Linear):59.1%

Other Growth Rates (2)

Gross Profit Growth Rate (Linear):100.0%

Book Value Growth Rate (Linear):64.5%

C. Company Profile & Context

Corporate Information (6)

Symbol:ETST

Company Name:EARTH SCIENCE TECH, INC.

Sector:Healthcare

Industry:Pharmaceuticals

Exchange:OTC

Country:United States

Market Classification (3)

Market Cap Category:N/A

Price Category:penny

Volume Category:N/A

Share Structure (3)

Shares Outstanding:290.00M

Shares Outstanding Basic:290.00M

Shares Outstanding Diluted:290.00M

Data Processing Info (3)

Processing Version:v3.0

Last Updated:2026-09-01 02:16:14 UTC

Data Timestamp:2026-08-20T09:01:29.968320