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Stock Comparison

VANI vs GKOS vs NVCR vs TNDM vs MDT

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

Live fundamentals10-year financials5-year price chart
VANI
Vivani Medical, Inc.

Medical - Devices

HealthcareNASDAQ • US
Market Cap$70M
5Y Perf.-58.5%
GKOS
Glaukos Corporation

Medical - Devices

HealthcareNYSE • US
Market Cap$7.81B
5Y Perf.+242.5%
NVCR
NovoCure Limited

Medical - Instruments & Supplies

HealthcareNASDAQ • JE
Market Cap$2.04B
5Y Perf.-73.5%
TNDM
Tandem Diabetes Care, Inc.

Medical - Devices

HealthcareNASDAQ • US
Market Cap$1.06B
5Y Perf.-81.4%
MDT
Medtronic plc

Medical - Devices

HealthcareNYSE • IE
Market Cap$97.62B
5Y Perf.-22.8%

VANI vs GKOS vs NVCR vs TNDM vs MDT — Key Financials

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

Company Snapshot
VANI logoVANI
GKOS logoGKOS
NVCR logoNVCR
TNDM logoTNDM
MDT logoMDT
IndustryMedical - DevicesMedical - DevicesMedical - Instruments & SuppliesMedical - DevicesMedical - Devices
Market Cap$70M$7.81B$2.04B$1.06B$97.62B
Revenue (TTM)$0.00$551M$674M$1.03B$35.48B
Net Income (TTM)$-26M$-189M$-173M$-95M$4.61B
Gross Margin78.1%75.2%54.9%61.9%
Operating Margin-15.6%-27.2%-7.9%17.9%
Forward P/E13.8x
Total Debt$19M$140M$290M$444M$28.52B
Cash & Equiv.$18M$91M$103M$91M$2.22B

VANI vs GKOS vs NVCR vs TNDM vs MDTLong-Term Stock Performance

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

VANI
GKOS
NVCR
TNDM
MDT
StockMay 20May 26Return
Vivani Medical, Inc. (VANI)10041.5-58.5%
Glaukos Corporation (GKOS)100342.5+242.5%
NovoCure Limited (NVCR)10026.5-73.5%
Tandem Diabetes Car… (TNDM)10018.6-81.4%
Medtronic plc (MDT)10077.2-22.8%

Price return only. Dividends and distributions are not included.

Quick Verdict: VANI vs GKOS vs NVCR vs TNDM vs MDT

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

Bottom line: MDT leads in 4 of 6 categories (5-stock set), making it the strongest pick for profitability and margin quality and capital preservation and lower volatility. Glaukos Corporation is the stronger pick specifically for growth and revenue expansion and recent price momentum and sentiment. As sector peers, any of these can serve as alternatives in the same allocation.
VANI
Vivani Medical, Inc.
The Healthcare Pick

VANI plays a supporting role in this comparison — it may shine differently against other peers.

Best for: healthcare exposure
GKOS
Glaukos Corporation
The Growth Play

GKOS is the #2 pick in this set and the best alternative if growth exposure and long-term compounding is your priority.

  • Rev growth 32.3%, EPS growth -18.4%, 3Y rev CAGR 21.5%
  • 454.5% 10Y total return vs MDT's 24.3%
  • Lower volatility, beta 1.16, Low D/E 21.3%, current ratio 4.69x
  • Beta 1.16, current ratio 4.69x
Best for: growth exposure and long-term compounding
NVCR
NovoCure Limited
The Healthcare Pick

NVCR lags the leaders in this set but could rank higher in a more targeted comparison.

Best for: healthcare exposure
TNDM
Tandem Diabetes Care, Inc.
The Healthcare Pick

Among these 5 stocks, TNDM doesn't own a clear edge in any measured category.

Best for: healthcare exposure
MDT
Medtronic plc
The Income Pick

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

  • Dividend streak 36 yrs, beta 0.42, yield 3.7%
  • 13.0% margin vs GKOS's -34.3%
  • Beta 0.42 vs NVCR's 2.15, lower leverage
  • 3.7% yield; 36-year raise streak; the other 4 pay no meaningful dividend
Best for: income & stability
See the full category breakdown
CategoryWinnerWhy
GrowthGKOS logoGKOS32.3% revenue growth vs VANI's -11.5%
Quality / MarginsMDT logoMDT13.0% margin vs GKOS's -34.3%
Stability / SafetyMDT logoMDTBeta 0.42 vs NVCR's 2.15, lower leverage
DividendsMDT logoMDT3.7% yield; 36-year raise streak; the other 4 pay no meaningful dividend
Momentum (1Y)GKOS logoGKOS+47.5% vs TNDM's -32.0%
Efficiency (ROA)MDT logoMDT175.8% ROA vs VANI's -103.9%, ROIC 6.0% vs -94.0%

VANI vs GKOS vs NVCR vs TNDM vs MDT — Revenue Breakdown by Segment

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

VANIVivani Medical, Inc.

Segment breakdown not available.

GKOSGlaukos Corporation
FY 2019
Glaucoma
97.5%$231M
Corneal Health
2.5%$6M
NVCRNovoCure Limited

Segment breakdown not available.

TNDMTandem Diabetes Care, Inc.
FY 2025
Supplies and Other
54.3%$551M
Pump
45.7%$464M
MDTMedtronic plc
FY 2025
Cardiac and Vascular Group
37.3%$12.5B
Neuroscience Group
29.4%$9.8B
Medical Surgical
25.1%$8.4B
Diabetes Group
8.2%$2.8B

VANI vs GKOS vs NVCR vs TNDM vs MDT — Financial Metrics

Side-by-side numbers across 5 stocks — who leads on profitability, valuation, growth, and risk.

BEST OVERALLMDTLAGGINGTNDM

Income & Cash Flow (Last 12 Months)

MDT leads this category, winning 3 of 6 comparable metrics.

MDT and VANI operate at a comparable scale, with $35.5B and $0 in trailing revenue. MDT is the more profitable business, keeping 13.0% 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.

MetricVANI logoVANIVivani Medical, I…GKOS logoGKOSGlaukos Corporati…NVCR logoNVCRNovoCure LimitedTNDM logoTNDMTandem Diabetes C…MDT logoMDTMedtronic plc
RevenueTrailing 12 months$0$551M$674M$1.0B$35.5B
EBITDAEarnings before interest/tax-$27M-$40M-$165M-$68M$9.4B
Net IncomeAfter-tax profit-$26M-$189M-$173M-$95M$4.6B
Free Cash FlowCash after capex-$25M-$18M-$48M-$4M$5.4B
Gross MarginGross profit ÷ Revenue+78.1%+75.2%+54.9%+61.9%
Operating MarginEBIT ÷ Revenue-15.6%-27.2%-7.9%+17.9%
Net MarginNet income ÷ Revenue-34.3%-25.7%-9.2%+13.0%
FCF MarginFCF ÷ Revenue-3.4%-7.1%-0.4%+15.2%
Rev. Growth (YoY)Latest quarter vs prior year+41.2%+12.3%+5.5%+8.8%
EPS Growth (YoY)Latest quarter vs prior year0.0%-6.3%-100.0%+84.8%-11.9%
MDT leads this category, winning 3 of 6 comparable metrics.

Valuation Metrics

Evenly matched — GKOS and TNDM and MDT each lead in 1 of 3 comparable metrics.
MetricVANI logoVANIVivani Medical, I…GKOS logoGKOSGlaukos Corporati…NVCR logoNVCRNovoCure LimitedTNDM logoTNDMTandem Diabetes C…MDT logoMDTMedtronic plc
Market CapShares × price$70M$7.8B$2.0B$1.1B$97.6B
Enterprise ValueMkt cap + debt − cash$71M$7.9B$2.2B$1.4B$123.9B
Trailing P/EPrice ÷ TTM EPS-2.77x-40.71x-14.66x-5.09x21.09x
Forward P/EPrice ÷ next-FY EPS est.13.80x
PEG RatioP/E ÷ EPS growth rate35.17x
EV / EBITDAEnterprise value multiple14.06x
Price / SalesMarket cap ÷ Revenue15.40x3.11x1.04x2.91x
Price / BookPrice ÷ Book value/share3.72x11.64x5.86x6.71x2.04x
Price / FCFMarket cap ÷ FCF18.83x
Evenly matched — GKOS and TNDM and MDT each lead in 1 of 3 comparable metrics.

Profitability & Efficiency

MDT leads this category, winning 6 of 9 comparable metrics.

MDT delivers a 9.4% return on equity — every $100 of shareholder capital generates $9 in annual profit, vs $-20 for VANI. 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. On the Piotroski fundamental quality scale (0–9), MDT scores 6/9 vs VANI's 1/9, reflecting solid financial health.

MetricVANI logoVANIVivani Medical, I…GKOS logoGKOSGlaukos Corporati…NVCR logoNVCRNovoCure LimitedTNDM logoTNDMTandem Diabetes C…MDT logoMDTMedtronic plc
ROE (TTM)Return on equity-19.9%-26.5%-50.8%-68.3%+9.4%
ROA (TTM)Return on assets-103.9%-20.1%-16.5%-10.0%+175.8%
ROICReturn on invested capital-94.0%-9.2%-16.4%-10.0%+6.0%
ROCEReturn on capital employed-65.2%-10.3%-28.9%-11.5%+7.5%
Piotroski ScoreFundamental quality 0–913536
Debt / EquityFinancial leverage1.10x0.21x0.85x2.86x0.59x
Net DebtTotal debt minus cash$961,000$49M$187M$354M$26.3B
Cash & Equiv.Liquid assets$18M$91M$103M$91M$2.2B
Total DebtShort + long-term debt$19M$140M$290M$444M$28.5B
Interest CoverageEBIT ÷ Interest expense-18.69x-96.80x-19.88x9.08x
MDT leads this category, winning 6 of 9 comparable metrics.

Total Returns (Dividends Reinvested)

GKOS leads this category, winning 5 of 6 comparable metrics.

A $10,000 investment in GKOS five years ago would be worth $17,474 today (with dividends reinvested), compared to $769 for VANI. Over the past 12 months, GKOS leads with a +47.5% total return vs TNDM's -32.0%. The 3-year compound annual growth rate (CAGR) favors GKOS at 31.5% vs NVCR's -36.4% — a key indicator of consistent wealth creation.

MetricVANI logoVANIVivani Medical, I…GKOS logoGKOSGlaukos Corporati…NVCR logoNVCRNovoCure LimitedTNDM logoTNDMTandem Diabetes C…MDT logoMDTMedtronic plc
YTD ReturnYear-to-date-6.3%+20.6%+36.4%-28.2%-20.0%
1-Year ReturnPast 12 months+16.7%+47.5%+2.6%-32.0%-5.5%
3-Year ReturnCumulative with dividends-11.2%+127.6%-74.2%-53.7%-6.3%
5-Year ReturnCumulative with dividends-92.3%+74.7%-90.2%-80.8%-29.2%
10-Year ReturnCumulative with dividends-98.8%+454.5%+38.5%-79.4%+24.3%
CAGR (3Y)Annualised 3-year return-3.9%+31.5%-36.4%-22.7%-2.1%
GKOS leads this category, winning 5 of 6 comparable metrics.

Risk & Volatility

Evenly matched — GKOS and MDT each lead in 1 of 2 comparable metrics.

MDT is the less volatile stock with a 0.42 beta — it tends to amplify market swings less than NVCR's 2.15 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. GKOS currently trades 91.0% from its 52-week high vs TNDM's 52.2% drawdown — a narrower gap to the peak suggests stronger recent price momentum.

MetricVANI logoVANIVivani Medical, I…GKOS logoGKOSGlaukos Corporati…NVCR logoNVCRNovoCure LimitedTNDM logoTNDMTandem Diabetes C…MDT logoMDTMedtronic plc
Beta (5Y)Sensitivity to S&P 5001.36x1.16x2.15x1.21x0.42x
52-Week HighHighest price in past year$1.92$146.75$20.06$29.65$106.33
52-Week LowLowest price in past year$0.92$73.16$9.82$9.98$75.91
% of 52W HighCurrent price vs 52-week peak+62.0%+91.0%+89.2%+52.2%+71.6%
RSI (14)Momentum oscillator 0–10046.161.570.941.929.2
Avg Volume (50D)Average daily shares traded236K674K1.4M1.9M7.9M
Evenly matched — GKOS and MDT each lead in 1 of 2 comparable metrics.

Analyst Outlook

Insufficient data to determine a leader in this category.

Analyst consensus: VANI as "Buy", GKOS as "Buy", NVCR as "Buy", TNDM as "Buy", MDT as "Buy". Consensus price targets imply 105.4% upside for TNDM (target: $32) vs 9.8% for GKOS (target: $147). MDT is the only dividend payer here at 3.65% yield — a key consideration for income-focused portfolios.

MetricVANI logoVANIVivani Medical, I…GKOS logoGKOSGlaukos Corporati…NVCR logoNVCRNovoCure LimitedTNDM logoTNDMTandem Diabetes C…MDT logoMDTMedtronic plc
Analyst RatingConsensus buy/hold/sellBuyBuyBuyBuyBuy
Price TargetConsensus 12-month target$146.67$33.50$31.77$109.50
# AnalystsCovering analysts224153949
Dividend YieldAnnual dividend ÷ price+3.7%
Dividend StreakConsecutive years of raises36
Dividend / ShareAnnual DPS$2.78
Buyback YieldShare repurchases ÷ mkt cap0.0%0.0%0.0%0.0%+3.3%
Insufficient data to determine a leader in this category.
Key Takeaway

MDT leads in 2 of 6 categories (Income & Cash Flow, Profitability & Efficiency). GKOS leads in 1 (Total Returns). 2 tied.

Best OverallMedtronic plc (MDT)Leads 2 of 6 categories
Loading custom metrics...

VANI vs GKOS vs NVCR vs TNDM vs MDT: Key Questions Answered

9 questions · data-driven answers · updated daily

01

Is VANI or GKOS or NVCR or TNDM or MDT a better buy right now?

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

3% revenue growth year-over-year, versus 3. 6% for Medtronic plc (MDT). Medtronic plc (MDT) offers the better valuation at 21. 1x trailing P/E (13. 8x forward), making it the more compelling value choice. Analysts rate Vivani Medical, Inc. (VANI) a "Buy" — based on 2 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 — VANI or GKOS or NVCR or TNDM or MDT?

Over the past 5 years, Glaukos Corporation (GKOS) delivered a total return of +74.

7%, compared to -92. 3% for Vivani Medical, Inc. (VANI). Over 10 years, the gap is even starker: GKOS returned +454. 5% versus VANI's -98. 8%. 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 — VANI or GKOS or NVCR or TNDM or MDT?

By beta (market sensitivity over 5 years), Medtronic plc (MDT) is the lower-risk stock at 0.

42β versus NovoCure Limited's 2. 15β — meaning NVCR is approximately 406% more volatile than MDT 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 — VANI or GKOS or NVCR or TNDM or MDT?

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

3% versus 3. 6% for Medtronic plc (MDT). On earnings-per-share growth, the picture is similar: Medtronic plc grew EPS 30. 8% 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 — VANI or GKOS or NVCR or TNDM or MDT?

Medtronic plc (MDT) is the more profitable company, earning 13.

9% net margin versus -37. 0% for Glaukos Corporation — meaning it keeps 13. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MDT leads at 17. 8% versus -23. 5% for NVCR. 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

Is VANI or GKOS or NVCR or TNDM or MDT more undervalued right now?

Analyst consensus price targets imply the most upside for TNDM: 105.

4% to $31. 77.

07

Which pays a better dividend — VANI or GKOS or NVCR or TNDM or MDT?

In this comparison, MDT (3.

7% yield) pays a dividend. VANI, GKOS, NVCR, TNDM do not pay a meaningful dividend and should not be held primarily for income.

08

Is VANI or GKOS or NVCR or TNDM or MDT better for a retirement portfolio?

For long-horizon retirement investors, Medtronic plc (MDT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

42), 3. 7% yield). NovoCure Limited (NVCR) carries a higher beta of 2. 15 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (MDT: +24. 3%, NVCR: +38. 5%), 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.

09

What are the main differences between VANI and GKOS and NVCR and TNDM and MDT?

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: VANI is a small-cap quality compounder stock; GKOS is a small-cap high-growth stock; NVCR is a small-cap quality compounder stock; TNDM is a small-cap quality compounder stock; MDT is a mid-cap income-oriented stock. MDT pays a dividend while VANI, GKOS, NVCR, TNDM do not, making them suitable for different income and tax situations. 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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  • Market Cap > $100B
  • Revenue Growth > 20%
  • Gross Margin > 46%
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NVCR

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  • Gross Margin > 45%
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TNDM

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  • Market Cap > $100B
  • Revenue Growth > 5%
  • Gross Margin > 32%
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MDT

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