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ZYBERNO

Stock Report

Updated Aug 29, 2026

GLAUKOS Corp (GKOS)

Healthcare • NYSE

$179.87

Glaukos Corporation is an American ophthalmic medical technology company headquartered in Aliso Viejo, California, that develops treatments for glaucoma, corneal health, and retinal diseases. The company is known for its iStent surgical implants for glaucoma treatment that reduce intraocular pressure with minimally invasive surgery, and its iLink corneal crosslinking system for treating keratoconus.

Professional Investment Analysis

ZYBERNO SCORE →

Is it a great business? Is it getting better?

35.0/100

WEAK BUSINESS

GLAUKOS Corp (GKOS) scores 35/100 — 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 GKOS quality analysis & detailed breakdown

VALUATION SIGNAL

N/A (Requires more data)

Requires fair value calculation and current price data

💰 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 GKOS valuation analysis · → View full GKOS 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 (-27.1%)

Debt-to-Equity (Solvency Risk):EXCELLENT (0.21x)

Operating Margin (Operational Efficiency):CRITICAL (-31.6%)

Return on Capital (Capital Efficiency):CRITICAL (-23.8%)

📊 Valuation Trilogy

Three interconnected metrics for complete valuation analysis

Click any metric for full methodology and detailed analysis

Zyberno's Verdict

GLAUKOS Corp (GKOS) stock report — Zyberno Score 35/100 (WEAK BUSINESS). Full financial analysis on Zyberno.

Over the trailing twelve months, GKOS generated -$18.48M in Owner Earnings. Capital was deployed as follows: $9.69M invested in capital expenditures. Reinvestment rate: 12.4%.

DIVISION I: EXECUTIVE SUMMARY

A. Market Valuation

Market Price & Capitalization (2)

Current Price:179.87

Market Cap:$10.58B

Valuation Multiples (3)

P/B Ratio:15.50x

P/S Ratio:17.26x

Peg Ratio:-999.00x

Enterprise Metrics (1)

Enterprise Value:$10.51B

Price Action & Momentum (3)

12-1 Momentum:

+78.4% (74th pctile)

📈 Click to view full GKOS Momentum analysis →

Momentum Percentile:74 / 100

% of 52-Week High:93.9%

B. Profitability Assessment

Return Metrics (5)

ROE:

-27.1%

📊 Click to view full GKOS ROE analysis →

ROA:-20.3%

Roic:

-23.8%

📊 Click to view full GKOS ROIC analysis →

Reinvestment Rate:12.4%

Fundamental Growth Rate (g):-3.0%

Margin Analysis (3)

Operating Margin Ttm:-31.6%

Net Margin Ttm:-30.7%

Ebitda Margin:-18.9%

TTM Performance (3)

Gross Margin Ttm:90.0%

Operating Margin Ttm:-31.6%

Net Margin Ttm:-30.7%

Yield Metrics (2)

Earnings Yield:-$1.82

Dividend Yield:0.0%

C. Log-Linear Regression Growth Trends

Earnings Surprise (SUE) (3)

Earnings Surprise (SUE):

+0.35

📊 Click to view full GKOS Earnings Surprise analysis →

EPS Surprise vs Expected:39.0%

Latest Earnings Filed:2026-07-29

Revenue Growth (Linear) (1)

Revenue Growth Rate (Linear):27.4%

D. Financial Stability

Liquidity Ratios (3)

Current Ratio:5.04x

Quick Ratio:4.46x

Cash Ratio:1.12x

Leverage Analysis (3)

Debt To Equity Ttm:0.21x

Debt-to-Equity Ratio:0.21x

Debt To Ebitda:-999.00x

Coverage Ratios (2)

Interest Coverage Ratio:-40.69x

Times Interest Earned:-40.69

Capital Structure (4)

Working Capital:413,449,000.00

Cash And Cash Equivalents:114,485,000.00

Long Term Debt:$35.49M

Net Debt:-$74.23M

DIVISION II: FINANCIAL STATEMENTS ANALYSIS

A. Income Statement Analysis

Revenue Components (2)

Revenue TTM: $612.84M

Linear Growth: 27.4%

📊 Click to view full GKOS Revenue analysis & methodology →

Cost Of Revenue Ttm:$127.96M

Profitability Breakdown (2)

Gross profit TTM: $551.59M

Linear Growth: 32.9%

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

-$193.36M

Bottom Line Performance (3)

-$188.05M

Income Before Tax:-$192.83M

Ebitda Ttm:-115,840,000.00

Operating Expenses (5)

Operating Expenses:565,371,000.00

R And D Expense:177,169,000.00

Sga Expense:386,702,000.00

Income Tax Expense:-$4.79M

Interest Expense:4,905,000.00

Expense Ratios (3)

R And D To Revenue Percentage:95.5%

Sga To Revenue Percentage:208.3%

Ebitda Margin:-18.9%

B. Balance Sheet Analysis

Asset Composition (5)

Total Assets:$920.52M

Current Assets:$515.78M

Ppe Net:112,114,000.00

Goodwill:66,710,000.00

Intangible Assets:$127.15M

Liability Structure (4)

Total Liabilities:238,035,000.00

Current Liabilities:102,329,000.00

Long Term Debt:$35.49M

Short Term Debt:$4.76M

Equity & Capital (3)

Equity:$682.49M

Retained Earnings:-$971.29M

Common Stock:150,000,000.00

Working Capital Items (3)

Accounts Receivable:138,900,000.00

Inventory:59,306,000.00

Accounts Payable:83,190,000.00

Special Items (2)

Contract Liabilities:0.00

Stock Based Compensation:28,865,000.00

C. Cash Flow Analysis

Operating Activities (2)

-$8.79M-$18.48M

Investment Activities (2)

Investing Cash Flow:$10.50M

Capital Expenditures Ttm:9,687,000.00

Financing Activities (3)

Financing Cash Flow:$15.77M

Dividends Paid Ttm:0.00

Stock Repurchase:0.00

Capital Transactions (3)

Common Stock Issuance:0.00

Long Term Debt Issuance:$0.00

Long Term Debt Repayments:$0.00

Non-Cash Items (1)

Depreciation Amortization Ttm:77,516,000.00

DIVISION III: OPERATIONAL METRICS

A. Per Share Analysis

Earnings Per Share (3)

EPS (Basic TTM):-3.27

-$3.27

Earnings Per Share Ttm:-$3.20

Revenue & Cash Per Share (2)

Sales Per Share Ttm:10.42

Operating Cash Flow Per Share:-$0.25

Book Value & Capital (2)

Book Value Per Share:$11.60

Cash Per Share:1.95

Dividend Policy (1)

Dividend Payout Ratio:-999.00x

B. Operational Efficiency

Asset Utilization (2)

Asset Turnover Ttm:0.66x

Working Capital Turnover Ttm:1.48x

Receivables Management (2)

Receivables Turnover Ttm:4.41x

Days Sales Outstanding Ttm:82.73

Inventory Management (2)

Inventory Turnover Ttm:2.16x

Days Inventory Outstanding Ttm:169.17

Payables & Cash Cycle (2)

Days Payable Outstanding:237.30

Cash Conversion Cycle:14.60

C. Quality & Risk Metrics

Financial Quality Scores (2)

Financial Strength Score:100.00

Quality Score:40.00

Market Metrics (2)

Beta:0.00x

Volatility Category:unknown

DIVISION IV: INVESTMENT ANALYSIS

A. Value Investment Framework

Owner Earnings Analysis (1)

-$18.48M

Damodaran Growth Analysis (2)

Reinvestment Rate:12.4%

Fundamental Growth Rate (g):-3.0%

B. Log-Linear Regression Growth Analysis

Growth Rates (Log-Linear Regression) (1)

Revenue Growth Rate (Linear):27.4%

Other Growth Rates (2)

Gross Profit Growth Rate (Linear):32.9%

Book Value Growth Rate (Linear):11.5%

C. Company Profile & Context

Corporate Information (6)

Symbol:GKOS

Company Name:GLAUKOS Corp

Sector:Healthcare

Industry:Medical Devices

Exchange:NYSE

Country:United States

Market Classification (3)

Market Cap Category:N/A

Price Category:high

Volume Category:N/A

Share Structure (3)

Shares Outstanding:58.82M

Shares Outstanding Basic:58.82M

Shares Outstanding Diluted:58.82M

Data Processing Info (3)

Processing Version:v3.0

Last Updated:2026-08-29 20:03:54 UTC

Data Timestamp:2026-08-29T20:03:54.664467