GKOS vs. TMDX
GKOS (Glaukos Corporation) and TMDX (TransMedics Group, Inc.) are both stocks. Both operate in the Medical Devices industry within the Healthcare sector. Over the past 5 years, GKOS returned 9.32%/yr vs 19.27%/yr for TMDX. At a 0.35 correlation, their price movements are largely independent.
Performance
GKOS vs. TMDX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, GKOS achieves a 19.25% return, which is significantly higher than TMDX's -39.31% return.
GKOS
- 1D
- 2.64%
- 1M
- 11.99%
- YTD
- 19.25%
- 6M
- 15.90%
- 1Y
- 39.10%
- 3Y*
- 25.90%
- 5Y*
- 9.32%
- 10Y*
- 16.93%
TMDX
- 1D
- -2.22%
- 1M
- 7.10%
- YTD
- -39.31%
- 6M
- -42.41%
- 1Y
- -42.11%
- 3Y*
- -2.67%
- 5Y*
- 19.27%
- 10Y*
- —
GKOS vs. TMDX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
GKOS Glaukos Corporation | 19.25% | -24.70% | 88.63% | 81.98% | -1.71% | -40.95% | 38.17% | -20.94% |
TMDX TransMedics Group, Inc. | -39.31% | 95.11% | -21.01% | 27.88% | 222.13% | -3.72% | 4.68% | -6.12% |
Correlation
The correlation between GKOS and TMDX is 0.28, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.28 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.35 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.39 |
Correlation (All Time) Calculated using the full available price history since May 2, 2019 | 0.35 |
The correlation between GKOS and TMDX shifts across timeframes, from 0.28 (1 year) to 0.39 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
GKOS:
$7.81B
TMDX:
$2.67B
GKOS:
-$3.30
TMDX:
$4.34
GKOS:
14.01
TMDX:
4.60
GKOS:
11.64
TMDX:
5.41
GKOS:
$551.35M
TMDX:
$635.89M
GKOS:
$439.11M
TMDX:
$375.74M
GKOS:
-$158.75M
TMDX:
$125.51M
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
GKOS vs. TMDX — Risk / Return Rank
GKOS
TMDX
GKOS vs. TMDX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Glaukos Corporation (GKOS) and TransMedics Group, Inc. (TMDX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| GKOS | TMDX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.48 | ||
| Sortino ratioReturn per unit of downside risk | +2.37 | ||
| Omega ratioGain probability vs. loss probability | 1.18 | 0.89 | +0.29 |
| Calmar ratioReturn relative to maximum drawdown | 1.31 | -0.72 | +2.03 |
| Martin ratioReturn relative to average drawdown | 2.89 | -1.72 | +4.61 |
Loading charts...
Drawdowns
GKOS vs. TMDX - Drawdown Comparison
The maximum GKOS drawdown since its inception was -69.57%, smaller than the maximum TMDX drawdown of -73.69%. Use the drawdown chart below to compare losses from any high point for GKOS and TMDX.
Loading charts...
Drawdown Indicators
| GKOS | TMDX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -69.57% | -73.69% | +4.12% |
Max Drawdown (1Y)Largest decline over 1 year | -29.92% | -58.76% | +28.84% |
Max Drawdown (3Y)Largest decline over 3 years | -53.68% | -67.79% | +14.11% |
Max Drawdown (5Y)Largest decline over 5 years | -59.58% | -67.79% | +8.21% |
Max Drawdown (10Y)Largest decline over 10 years | -69.57% | — | — |
Current DrawdownCurrent decline from peak | -16.48% | -58.08% | +41.60% |
Average DrawdownAverage peak-to-trough decline | -27.75% | -31.97% | +4.22% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 13.56% | 24.53% | -10.97% |
Volatility
GKOS vs. TMDX - Volatility Comparison
Glaukos Corporation (GKOS) has a higher volatility of 21.50% compared to TransMedics Group, Inc. (TMDX) at 13.09%. This indicates that GKOS's price experiences larger fluctuations and is considered to be riskier than TMDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| GKOS | TMDX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 21.50% | 13.09% | +8.41% |
Volatility (6M)Calculated over the trailing 6-month period | 41.00% | 44.82% | -3.82% |
Volatility (1Y)Calculated over the trailing 1-year period | 52.66% | 58.16% | -5.50% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 50.47% | 72.14% | -21.67% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 52.36% | 71.70% | -19.34% |
Dividends
GKOS vs. TMDX - Dividend Comparison
Neither GKOS nor TMDX has paid dividends to shareholders.
Financials
GKOS vs. TMDX - Financials Comparison
This section allows you to compare key financial metrics between Glaukos Corporation and TransMedics Group, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
GKOS vs. TMDX - Profitability Comparison
GKOS - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Glaukos Corporation reported a gross profit of 117.23M and revenue of 150.57M. Therefore, the gross margin over that period was 77.9%.
TMDX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, TransMedics Group, Inc. reported a gross profit of 101.16M and revenue of 173.93M. Therefore, the gross margin over that period was 58.2%.
GKOS - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Glaukos Corporation reported an operating income of -19.86M and revenue of 150.57M, resulting in an operating margin of -13.2%.
TMDX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, TransMedics Group, Inc. reported an operating income of 13.30M and revenue of 173.93M, resulting in an operating margin of 7.6%.
GKOS - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Glaukos Corporation reported a net income of -19.78M and revenue of 150.57M, resulting in a net margin of -13.1%.
TMDX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, TransMedics Group, Inc. reported a net income of 7.32M and revenue of 173.93M, resulting in a net margin of 4.2%.
Frequently Asked Questions
GKOS and TMDX have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
GKOS has higher volatility (21.50%) compared to TMDX (13.09%). In terms of maximum drawdown, GKOS dropped -69.57% vs TMDX's -73.69%.
GKOS currently has the higher Sharpe Ratio (0.75 vs -0.73), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
Find the right allocation for GKOS and TMDX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer