GKOS vs. DXCM

Last updated Apr 1, 2026

Compare and contrast key facts about Glaukos Corporation (GKOS) and DexCom, Inc. (DXCM).

Performance

GKOS vs. DXCM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Glaukos Corporation (GKOS) and DexCom, Inc. (DXCM). The values are adjusted to include any dividend payments, if applicable.

GKOS vs. DXCM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GKOS Glaukos Corporation	-4.65%	-24.70%	88.63%	81.98%	-1.71%	-40.95%	38.17%	-3.03%	118.99%	-25.22%
DXCM DexCom, Inc.	-5.38%	-14.66%	-37.33%	9.58%	-15.64%	45.23%	69.02%	82.59%	108.75%	-3.87%

Fundamentals

Market Cap GKOS : $6.19B DXCM : $25.05B
EPS GKOS : -$3.28 DXCM : $2.07
PS Ratio GKOS : 12.13 DXCM : 5.45
PB Ratio GKOS : 9.44 DXCM : 9.12
Total Revenue (TTM) GKOS : $507.44M DXCM : $4.66B
Gross Profit (TTM) GKOS : $282.76M DXCM : $2.80B
EBITDA (TTM) GKOS : -$156.42M DXCM : $1.34B

Returns By Period

In the year-to-date period, GKOS achieves a -4.65% return, which is significantly higher than DXCM's -5.38% return. Over the past 10 years, GKOS has outperformed DXCM with an annualized return of 20.17%, while DXCM has yielded a comparatively lower 14.02% annualized return.

GKOS

• 1D: 2.52%
• 1M: -10.58%
• YTD: -4.65%
• 6M: 32.02%
• 1Y: 9.39%
• 3Y*: 29.04%
• 5Y*: 5.60%
• 10Y*: 20.17%

DXCM

• 1D: 1.45%
• 1M: -14.48%
• YTD: -5.38%
• 6M: -6.67%
• 1Y: -8.04%
• 3Y*: -18.54%
• 5Y*: -7.23%
• 10Y*: 14.02%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

GKOS vs. DXCM — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

GKOS

GKOS Risk / Return Rank: 47
GKOS Sharpe Ratio Rank: 49
GKOS Sortino Ratio Rank: 46
GKOS Omega Ratio Rank: 45
GKOS Calmar Ratio Rank: 46
GKOS Martin Ratio Rank: 46

DXCM

DXCM Risk / Return Rank: 34
DXCM Sharpe Ratio Rank: 34
DXCM Sortino Ratio Rank: 31
DXCM Omega Ratio Rank: 32
DXCM Calmar Ratio Rank: 37
DXCM Martin Ratio Rank: 37

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

GKOS vs. DXCM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Glaukos Corporation (GKOS) and DexCom, Inc. (DXCM). 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.

	GKOS	DXCM	Difference
Sharpe ratio Return per unit of total volatility	0.19	-0.18	+0.37
Sortino ratio Return per unit of downside risk	0.64	0.04	+0.60
Omega ratio Gain probability vs. loss probability	1.08	1.01	+0.08
Calmar ratio Return relative to maximum drawdown	0.19	-0.19	+0.37
Martin ratio Return relative to average drawdown	0.43	-0.38	+0.80
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GKOS vs. DXCM - Sharpe Ratio Comparison

The current GKOS Sharpe Ratio is 0.19, which is higher than the DXCM Sharpe Ratio of -0.18. The chart below compares the historical Sharpe Ratios of GKOS and DXCM, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	GKOS	DXCM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.19	-0.18	+0.37
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.12	-0.16	+0.27
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.39	0.29	+0.10
Sharpe Ratio (All Time) Calculated using the full available price history	0.23	0.29	-0.06

Correlation

The correlation between GKOS and DXCM is 0.35, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

GKOS vs. DXCM - Dividend Comparison

Neither GKOS nor DXCM has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

GKOS vs. DXCM - Drawdown Comparison

The maximum GKOS drawdown since its inception was -69.57%, smaller than the maximum DXCM drawdown of -94.61%. Use the drawdown chart below to compare losses from any high point for GKOS and DXCM.

Drawdown Indicators

	GKOS	DXCM	Difference
Max Drawdown Largest peak-to-trough decline	-69.57%	-94.61%	+25.04%
Max Drawdown (1Y) Largest decline over 1 year	-29.92%	-38.75%	+8.83%
Max Drawdown (5Y) Largest decline over 5 years	-64.32%	-66.32%	+2.00%
Max Drawdown (10Y) Largest decline over 10 years	-69.57%	-66.32%	-3.25%
Current Drawdown Current decline from peak	-33.22%	-61.43%	+28.21%
Average Drawdown Average peak-to-trough decline	-27.87%	-35.79%	+7.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.03%	19.27%	-6.24%

Volatility

GKOS vs. DXCM - Volatility Comparison

Glaukos Corporation (GKOS) has a higher volatility of 13.32% compared to DexCom, Inc. (DXCM) at 9.22%. This indicates that GKOS's price experiences larger fluctuations and is considered to be riskier than DXCM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GKOS	DXCM	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.32%	9.22%	+4.10%
Volatility (6M) Calculated over the trailing 6-month period	35.21%	27.63%	+7.58%
Volatility (1Y) Calculated over the trailing 1-year period	50.21%	43.67%	+6.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	48.98%	46.76%	+2.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	52.20%	48.31%	+3.89%

Financials

GKOS vs. DXCM - Profitability Comparison

The chart below illustrates the profitability comparison between Glaukos Corporation and DexCom, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

GKOS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Glaukos Corporation reported a gross profit of -1.52M and revenue of 143.12M. Therefore, the gross margin over that period was -1.1%.

DXCM - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, DexCom, Inc. reported a gross profit of 792.70M and revenue of 1.26B. Therefore, the gross margin over that period was 62.9%.

GKOS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Glaukos Corporation reported an operating income of -139.87M and revenue of 143.12M, resulting in an operating margin of -97.7%.

DXCM - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, DexCom, Inc. reported an operating income of 323.00M and revenue of 1.26B, resulting in an operating margin of 25.6%.

GKOS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Glaukos Corporation reported a net income of -133.66M and revenue of 143.12M, resulting in a net margin of -93.4%.

DXCM - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, DexCom, Inc. reported a net income of 267.30M and revenue of 1.26B, resulting in a net margin of 21.2%.