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Stock Comparison

GKOS vs TNDM

Revenue, margins, valuation, and 5-year total return — side by side.

Live fundamentals10-year financials5-year price chart
GKOS
Glaukos Corporation

Medical - Devices

HealthcareNYSE • US
Market Cap$7.85B
5Y Perf.+244.2%
TNDM
Tandem Diabetes Care, Inc.

Medical - Devices

HealthcareNASDAQ • US
Market Cap$1.27B
5Y Perf.-77.8%

GKOS vs TNDM — Key Financials

Market cap, revenue, margins, and valuation side-by-side.

Company Snapshot
GKOS logoGKOS
TNDM logoTNDM
IndustryMedical - DevicesMedical - Devices
Market Cap$7.85B$1.27B
Revenue (TTM)$551M$1.03B
Net Income (TTM)$-189M$-95M
Gross Margin78.1%54.9%
Operating Margin-15.6%-7.9%
Total Debt$140M$444M
Cash & Equiv.$91M$91M

GKOS vs TNDMLong-Term Stock Performance

Price return indexed to 100 at period start. Dividends excluded.

GKOS
TNDM
StockMay 20May 26Return
Glaukos Corporation (GKOS)100344.2+244.2%
Tandem Diabetes Car… (TNDM)10022.2-77.8%

Price return only. Dividends and distributions are not included.

Quick Verdict: GKOS vs TNDM

Each card shows where this stock fits in a portfolio — not just who wins on paper.

Bottom line: GKOS leads in 3 of 6 categories, making it the strongest pick for growth and revenue expansion and capital preservation and lower volatility. Tandem Diabetes Care, Inc. is the stronger pick specifically for profitability and margin quality and operational efficiency and capital deployment. As sector peers, any of these can serve as alternatives in the same allocation.
GKOS
Glaukos Corporation
The Income Pick

GKOS carries the broadest edge in this set and is the clearest fit for income & stability and growth exposure.

  • beta 1.20
  • Rev growth 32.3%, EPS growth -18.4%, 3Y rev CAGR 21.5%
  • 457.1% 10Y total return vs TNDM's -75.4%
Best for: income & stability and growth exposure
TNDM
Tandem Diabetes Care, Inc.
The Quality Compounder

TNDM is the clearest fit if your priority is quality and efficiency.

  • -9.2% margin vs GKOS's -34.3%
  • -10.0% ROA vs GKOS's -20.1%, ROIC -10.0% vs -9.2%
Best for: quality and efficiency
See the full category breakdown
CategoryWinnerWhy
GrowthGKOS logoGKOS32.3% revenue growth vs TNDM's 7.9%
Quality / MarginsTNDM logoTNDM-9.2% margin vs GKOS's -34.3%
Stability / SafetyGKOS logoGKOSBeta 1.20 vs TNDM's 1.45, lower leverage
DividendsTieNeither stock pays a meaningful dividend
Momentum (1Y)GKOS logoGKOS+52.0% vs TNDM's -17.0%
Efficiency (ROA)TNDM logoTNDM-10.0% ROA vs GKOS's -20.1%, ROIC -10.0% vs -9.2%

GKOS vs TNDM — Revenue Breakdown by Segment

How each company's revenue is distributed across its business units

GKOSGlaukos Corporation
FY 2019
Glaucoma
97.5%$231M
Corneal Health
2.5%$6M
TNDMTandem Diabetes Care, Inc.
FY 2025
Supplies and Other
54.3%$551M
Pump
45.7%$464M

GKOS vs TNDM — Financial Metrics

Side-by-side numbers across 2 stocks — who leads on profitability, valuation, growth, and risk.

BEST OVERALLGKOSLAGGINGTNDM

Income & Cash Flow (Last 12 Months)

TNDM leads this category, winning 4 of 6 comparable metrics.

TNDM is the larger business by revenue, generating $1.0B annually — 1.9x GKOS's $551M. TNDM is the more profitable business, keeping -9.2% of every revenue dollar as net income compared to GKOS's -34.3%. On growth, GKOS holds the edge at +41.2% YoY revenue growth, suggesting stronger near-term business momentum.

MetricGKOS logoGKOSGlaukos Corporati…TNDM logoTNDMTandem Diabetes C…
RevenueTrailing 12 months$551M$1.0B
EBITDAEarnings before interest/tax-$40M-$68M
Net IncomeAfter-tax profit-$189M-$95M
Free Cash FlowCash after capex-$18M-$4M
Gross MarginGross profit ÷ Revenue+78.1%+54.9%
Operating MarginEBIT ÷ Revenue-15.6%-7.9%
Net MarginNet income ÷ Revenue-34.3%-9.2%
FCF MarginFCF ÷ Revenue-3.4%-0.4%
Rev. Growth (YoY)Latest quarter vs prior year+41.2%+5.5%
EPS Growth (YoY)Latest quarter vs prior year-6.3%+84.8%
TNDM leads this category, winning 4 of 6 comparable metrics.

Valuation Metrics

TNDM leads this category, winning 2 of 3 comparable metrics.
MetricGKOS logoGKOSGlaukos Corporati…TNDM logoTNDMTandem Diabetes C…
Market CapShares × price$7.9B$1.3B
Enterprise ValueMkt cap + debt − cash$7.9B$1.6B
Trailing P/EPrice ÷ TTM EPS-40.90x-6.08x
Forward P/EPrice ÷ next-FY EPS est.
PEG RatioP/E ÷ EPS growth rate
EV / EBITDAEnterprise value multiple
Price / SalesMarket cap ÷ Revenue15.47x1.25x
Price / BookPrice ÷ Book value/share11.69x8.01x
Price / FCFMarket cap ÷ FCF
TNDM leads this category, winning 2 of 3 comparable metrics.

Profitability & Efficiency

GKOS leads this category, winning 6 of 8 comparable metrics.

GKOS delivers a -26.5% return on equity — every $100 of shareholder capital generates $-26 in annual profit, vs $-68 for TNDM. GKOS carries lower financial leverage with a 0.21x debt-to-equity ratio, signaling a more conservative balance sheet compared to TNDM's 2.86x.

MetricGKOS logoGKOSGlaukos Corporati…TNDM logoTNDMTandem Diabetes C…
ROE (TTM)Return on equity-26.5%-68.3%
ROA (TTM)Return on assets-20.1%-10.0%
ROICReturn on invested capital-9.2%-10.0%
ROCEReturn on capital employed-10.3%-11.5%
Piotroski ScoreFundamental quality 0–933
Debt / EquityFinancial leverage0.21x2.86x
Net DebtTotal debt minus cash$49M$354M
Cash & Equiv.Liquid assets$91M$91M
Total DebtShort + long-term debt$140M$444M
Interest CoverageEBIT ÷ Interest expense-18.69x-15.99x
GKOS leads this category, winning 6 of 8 comparable metrics.

Total Returns (Dividends Reinvested)

GKOS leads this category, winning 6 of 6 comparable metrics.

A $10,000 investment in GKOS five years ago would be worth $16,155 today (with dividends reinvested), compared to $2,195 for TNDM. Over the past 12 months, GKOS leads with a +52.0% total return vs TNDM's -17.0%. The 3-year compound annual growth rate (CAGR) favors GKOS at 31.7% vs TNDM's -18.0% — a key indicator of consistent wealth creation.

MetricGKOS logoGKOSGlaukos Corporati…TNDM logoTNDMTandem Diabetes C…
YTD ReturnYear-to-date+21.2%-14.3%
1-Year ReturnPast 12 months+52.0%-17.0%
3-Year ReturnCumulative with dividends+128.7%-44.8%
5-Year ReturnCumulative with dividends+61.5%-78.0%
10-Year ReturnCumulative with dividends+457.1%-75.4%
CAGR (3Y)Annualised 3-year return+31.7%-18.0%
GKOS leads this category, winning 6 of 6 comparable metrics.

Risk & Volatility

GKOS leads this category, winning 2 of 2 comparable metrics.

GKOS is the less volatile stock with a 1.20 beta — it tends to amplify market swings less than TNDM's 1.45 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. GKOS currently trades 91.4% from its 52-week high vs TNDM's 62.3% drawdown — a narrower gap to the peak suggests stronger recent price momentum.

MetricGKOS logoGKOSGlaukos Corporati…TNDM logoTNDMTandem Diabetes C…
Beta (5Y)Sensitivity to S&P 5001.20x1.45x
52-Week HighHighest price in past year$146.75$29.65
52-Week LowLowest price in past year$73.16$9.98
% of 52W HighCurrent price vs 52-week peak+91.4%+62.3%
RSI (14)Momentum oscillator 0–10063.039.1
Avg Volume (50D)Average daily shares traded678K1.8M
GKOS leads this category, winning 2 of 2 comparable metrics.

Analyst Outlook

Insufficient data to determine a leader in this category.

Wall Street rates GKOS as "Buy" and TNDM as "Buy". Consensus price targets imply 71.2% upside for TNDM (target: $32) vs 9.3% for GKOS (target: $147).

MetricGKOS logoGKOSGlaukos Corporati…TNDM logoTNDMTandem Diabetes C…
Analyst RatingConsensus buy/hold/sellBuyBuy
Price TargetConsensus 12-month target$146.67$31.62
# AnalystsCovering analysts2439
Dividend YieldAnnual dividend ÷ price
Dividend StreakConsecutive years of raises
Dividend / ShareAnnual DPS
Buyback YieldShare repurchases ÷ mkt cap0.0%0.0%
Insufficient data to determine a leader in this category.
Key Takeaway

GKOS leads in 3 of 6 categories (Profitability & Efficiency, Total Returns). TNDM leads in 2 (Income & Cash Flow, Valuation Metrics).

Best OverallGlaukos Corporation (GKOS)Leads 3 of 6 categories
Loading custom metrics...

GKOS vs TNDM: Frequently Asked Questions

8 questions · data-driven answers · updated daily

01

Is GKOS or TNDM a better buy right now?

For growth investors, Glaukos Corporation (GKOS) is the stronger pick with 32.

3% revenue growth year-over-year, versus 7. 9% for Tandem Diabetes Care, Inc. (TNDM). Analysts rate Glaukos Corporation (GKOS) a "Buy" — based on 24 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

02

Which is the better long-term investment — GKOS or TNDM?

Over the past 5 years, Glaukos Corporation (GKOS) delivered a total return of +61.

5%, compared to -78. 0% for Tandem Diabetes Care, Inc. (TNDM). Over 10 years, the gap is even starker: GKOS returned +457. 1% versus TNDM's -75. 4%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

03

Which is safer — GKOS or TNDM?

By beta (market sensitivity over 5 years), Glaukos Corporation (GKOS) is the lower-risk stock at 1.

20β versus Tandem Diabetes Care, Inc. 's 1. 45β — meaning TNDM is approximately 21% more volatile than GKOS relative to the S&P 500. On balance sheet safety, Glaukos Corporation (GKOS) carries a lower debt/equity ratio of 21% versus 3% for Tandem Diabetes Care, Inc. — giving it more financial flexibility in a downturn.

04

Which is growing faster — GKOS or TNDM?

By revenue growth (latest reported year), Glaukos Corporation (GKOS) is pulling ahead at 32.

3% versus 7. 9% for Tandem Diabetes Care, Inc. (TNDM). On earnings-per-share growth, the picture is similar: Glaukos Corporation grew EPS -18. 4% year-over-year, compared to -106. 8% for Tandem Diabetes Care, Inc.. Over a 3-year CAGR, GKOS leads at 21. 5% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

05

Which has better profit margins — GKOS or TNDM?

Tandem Diabetes Care, Inc.

(TNDM) is the more profitable company, earning -20. 2% net margin versus -37. 0% for Glaukos Corporation — meaning it keeps -20. 2% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: TNDM leads at -7. 7% versus -17. 1% for GKOS. At the gross margin level — before operating expenses — GKOS leads at 77. 5%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

06

Which pays a better dividend — GKOS or TNDM?

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

07

Is GKOS or TNDM better for a retirement portfolio?

For long-horizon retirement investors, Glaukos Corporation (GKOS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1.

20), +457. 1% 10Y return). Both have compounded well over 10 years (GKOS: +457. 1%, TNDM: -75. 4%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

08

What are the main differences between GKOS and TNDM?

Both stocks operate in the Healthcare sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: GKOS is a small-cap high-growth stock; TNDM is a small-cap quality compounder stock. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.

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GKOS

High-Growth Disruptor

  • Sector: Healthcare
  • Market Cap > $100B
  • Revenue Growth > 20%
  • Gross Margin > 46%
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TNDM

Quality Business

  • Sector: Healthcare
  • Market Cap > $100B
  • Revenue Growth > 5%
  • Gross Margin > 32%
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