WDNA vs. MDEV

Last updated Jun 4, 2026

WDNA (WisdomTree BioRevolution Fund) and MDEV (First Trust Indxx Medical Devices ETF) are both Health & Biotech Equities funds - WDNA tracks the WisdomTree BioRevolution Index while MDEV tracks the Indxx Global Medical Equipment Index. Both are passively managed. Over the past 3 years, WDNA returned 2.45%/yr vs -2.86%/yr for MDEV. A 0.71 correlation means they provide meaningful diversification when combined. WDNA charges 0.45%/yr vs 0.70%/yr for MDEV.

Performance

WDNA vs. MDEV - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in WisdomTree BioRevolution Fund (WDNA) and First Trust Indxx Medical Devices ETF (MDEV). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WDNA achieves a 5.85% return, which is significantly higher than MDEV's -11.48% return.

WDNA

• 1D: 1.24%
• 1M: -0.73%
• YTD: 5.85%
• 6M: 8.14%
• 1Y: 45.86%
• 3Y*: 2.45%
• 5Y*: -5.33%
• 10Y*: —

MDEV

• 1D: 0.04%
• 1M: 1.54%
• YTD: -11.48%
• 6M: -12.29%
• 1Y: -7.05%
• 3Y*: -2.86%
• 5Y*: —
• 10Y*: —

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

WDNA vs. MDEV - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
WDNA WisdomTree BioRevolution Fund	5.85%	22.68%	-14.18%	-2.07%	-26.29%	-9.41%
MDEV First Trust Indxx Medical Devices ETF	-11.48%	2.00%	1.79%	7.55%	-28.59%	4.16%

Correlation

The correlation between WDNA and MDEV is 0.55, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.55
Correlation (3Y) Calculated over the trailing 3-year period	0.63
Correlation (All Time) Calculated using the full available price history since Jun 24, 2021	0.71

The correlation between WDNA and MDEV shifts across timeframes, from 0.55 (1 year) to 0.71 (all time), reflecting how their relationship changes across market environments.

WDNA vs. MDEV - Sectors Allocation Comparison

Sectors	WDNA	MDEV
Healthcare	85.0%	100.0%
Basic Materials	6.5%	-
Consumer Defensive	3.0%	-
Energy	1.1%	-
Communication Services	-	-
Consumer Cyclical	-	-
Financial Services	-	-
Industrials	-	-
Real Estate	-	-
Technology	-	-
Utilities	-	-

Return for Risk

WDNA vs. MDEV — Risk / Return Rank

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

WDNA

WDNA Risk / Return Rank: 57
WDNA Sharpe Ratio Rank: 53
WDNA Sortino Ratio Rank: 55
WDNA Omega Ratio Rank: 48
WDNA Calmar Ratio Rank: 78
WDNA Martin Ratio Rank: 53

MDEV

MDEV Risk / Return Rank: 5
MDEV Sharpe Ratio Rank: 5
MDEV Sortino Ratio Rank: 5
MDEV Omega Ratio Rank: 5
MDEV Calmar Ratio Rank: 5
MDEV Martin Ratio Rank: 4

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.

WDNA vs. MDEV - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WisdomTree BioRevolution Fund (WDNA) and First Trust Indxx Medical Devices ETF (MDEV). 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.

	WDNA	MDEV	Difference
Sharpe ratio: Return per unit of total volatility	1.81	-0.44	+2.25
Sortino ratio: Return per unit of downside risk	2.64	-0.53	+3.17
Omega ratio: Gain probability vs. loss probability	1.30	0.94	+0.36
Calmar ratio: Return relative to maximum drawdown	3.94	-0.39	+4.33
Martin ratio: Return relative to average drawdown	8.95	-0.98	+9.93
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WDNA vs. MDEV - Sharpe Ratio Comparison

The current WDNA Sharpe Ratio is 1.81, which is higher than the MDEV Sharpe Ratio of -0.44. The chart below compares the historical Sharpe Ratios of WDNA and MDEV, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	WDNA	MDEV	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.81	-0.44	+2.25
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.21	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.21	-0.32	+0.11

Drawdowns

WDNA vs. MDEV - Drawdown Comparison

The maximum WDNA drawdown since its inception was -58.87%, which is greater than MDEV's maximum drawdown of -42.34%. Use the drawdown chart below to compare losses from any high point for WDNA and MDEV.

Drawdown Indicators

	WDNA	MDEV	Difference
Max Drawdown Largest peak-to-trough decline	-58.87%	-42.34%	-16.53%
Max Drawdown (1Y) Largest decline over 1 year	-11.70%	-18.13%	+6.43%
Max Drawdown (3Y) Largest decline over 3 years	-38.25%	-22.50%	-15.75%
Max Drawdown (5Y) Largest decline over 5 years	-58.87%	—	—
Current Drawdown Current decline from peak	-31.86%	-33.76%	+1.90%
Average Drawdown Average peak-to-trough decline	-35.65%	-25.65%	-10.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.14%	7.22%	-2.08%

Volatility

WDNA vs. MDEV - Volatility Comparison

WisdomTree BioRevolution Fund (WDNA) has a higher volatility of 6.75% compared to First Trust Indxx Medical Devices ETF (MDEV) at 4.60%. This indicates that WDNA's price experiences larger fluctuations and is considered to be riskier than MDEV based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WDNA	MDEV	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.75%	4.60%	+2.15%
Volatility (6M) Calculated over the trailing 6-month period	16.39%	11.42%	+4.97%
Volatility (1Y) Calculated over the trailing 1-year period	25.53%	16.00%	+9.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.04%	18.98%	+6.06%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.04%	18.98%	+6.06%

WDNA vs. MDEV - Expense Ratio Comparison

WDNA has a 0.45% expense ratio, which is lower than MDEV's 0.70% expense ratio.

Dividends

WDNA vs. MDEV - Dividend Comparison

WDNA's dividend yield for the trailing twelve months is around 4.31%, while MDEV has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021
MDEV First Trust Indxx Medical Devices ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
WDNA WisdomTree BioRevolution Fund	4.31%	4.57%	0.75%	0.80%	0.38%	0.10%

Frequently Asked Questions

Can I hold both WDNA and MDEV in my portfolio?

WDNA and MDEV have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WDNA or MDEV?

WDNA has higher volatility (6.75%) compared to MDEV (4.60%). In terms of maximum drawdown, WDNA dropped -58.87% vs MDEV's -42.34%.

Which ETF is better, WDNA or MDEV?

On 3-year performance, WDNA leads with 2.45% vs -2.86% for MDEV. On fees, WDNA is cheaper at 0.45% per year. On volatility, MDEV has been the lower-risk option at 4.60%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, WDNA or MDEV?

Over the 3-year period, WDNA has performed better with a 2.45% return vs -2.86%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, WDNA or MDEV?

WDNA is cheaper with a 0.45% expense ratio, compared with 0.70% for MDEV.

Which ETF pays a higher dividend yield, WDNA or MDEV?

WDNA has the higher dividend yield at 4.31%, compared with 0.00% for MDEV.

What is the main difference between WDNA and MDEV?

WDNA tracks WisdomTree BioRevolution Index, while MDEV tracks Indxx Global Medical Equipment Index. They also come from different issuers: WisdomTree and First Trust. Their fees differ too: 0.45% for WDNA and 0.70% for MDEV.

Which has better risk-adjusted returns?

WDNA currently has the higher Sharpe Ratio (1.81 vs -0.44), 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.