UMDV.AS vs. IWDA.AS

Last updated Jun 5, 2026

UMDV.AS (iShares US Medical Devices UCITS ETF) and IWDA.AS (iShares Core MSCI World UCITS ETF USD (Acc)) are both exchange-traded funds - UMDV.AS is a Health & Biotech Equities fund tracking the MSCI World/Health Care NR USD, while IWDA.AS is a Global Equities fund tracking the MSCI World Index. Both are passively managed. Over the past 5 years, UMDV.AS returned -1.58%/yr vs 11.84%/yr for IWDA.AS. A 0.62 correlation means they provide meaningful diversification when combined. UMDV.AS charges 0.25%/yr vs 0.20%/yr for IWDA.AS.

Performance

UMDV.AS vs. IWDA.AS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares US Medical Devices UCITS ETF (UMDV.AS) and iShares Core MSCI World UCITS ETF USD (Acc) (IWDA.AS). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

UMDV.AS is traded in USD, while IWDA.AS is traded in EUR. To make them comparable, the IWDA.AS values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, UMDV.AS achieves a -21.33% return, which is significantly lower than IWDA.AS's 9.81% return.

UMDV.AS

• 1D: 3.64%
• 1M: -0.76%
• YTD: -21.33%
• 6M: -22.09%
• 1Y: -20.45%
• 3Y*: -1.79%
• 5Y*: -1.58%
• 10Y*: —

IWDA.AS

• 1D: 0.09%
• 1M: 4.07%
• YTD: 9.81%
• 6M: 11.01%
• 1Y: 25.92%
• 3Y*: 20.74%
• 5Y*: 11.84%
• 10Y*: 13.07%

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

UMDV.AS vs. IWDA.AS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
UMDV.AS iShares US Medical Devices UCITS ETF	-21.33%	7.40%	11.19%	4.39%	-20.14%	23.03%	12.03%
IWDA.AS iShares Core MSCI World UCITS ETF USD (Acc)	9.81%	21.46%	19.36%	23.68%	-18.74%	23.51%	14.18%

Correlation

The correlation between UMDV.AS and IWDA.AS is 0.30, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.30
Correlation (3Y) Calculated over the trailing 3-year period	0.49
Correlation (5Y) Calculated over the trailing 5-year period	0.61
Correlation (All Time) Calculated using the full available price history since Aug 7, 2020	0.62

Over the past year, the correlation between UMDV.AS and IWDA.AS has dropped to 0.30 - well below their long-term average of 0.62, suggesting their price drivers have been diverging.

Return for Risk

UMDV.AS vs. IWDA.AS — Risk / Return Rank

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

UMDV.AS

UMDV.AS Risk / Return Rank: 1
UMDV.AS Sharpe Ratio Rank: 1
UMDV.AS Sortino Ratio Rank: 1
UMDV.AS Omega Ratio Rank: 1
UMDV.AS Calmar Ratio Rank: 3
UMDV.AS Martin Ratio Rank: 0

IWDA.AS

IWDA.AS Risk / Return Rank: 71
IWDA.AS Sharpe Ratio Rank: 66
IWDA.AS Sortino Ratio Rank: 67
IWDA.AS Omega Ratio Rank: 69
IWDA.AS Calmar Ratio Rank: 74
IWDA.AS Martin Ratio Rank: 77

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.

UMDV.AS vs. IWDA.AS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares US Medical Devices UCITS ETF (UMDV.AS) and iShares Core MSCI World UCITS ETF USD (Acc) (IWDA.AS). 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.

	UMDV.AS	IWDA.AS	Difference
Sharpe ratio: Return per unit of total volatility	-1.19	2.22	-3.41
Sortino ratio: Return per unit of downside risk	-1.68	3.28	-4.96
Omega ratio: Gain probability vs. loss probability	0.82	1.40	-0.58
Calmar ratio: Return relative to maximum drawdown	-0.75	3.05	-3.79
Martin ratio: Return relative to average drawdown	-1.92	13.17	-15.08
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

UMDV.AS vs. IWDA.AS - Sharpe Ratio Comparison

The current UMDV.AS Sharpe Ratio is -1.19, which is lower than the IWDA.AS Sharpe Ratio of 2.22. The chart below compares the historical Sharpe Ratios of UMDV.AS and IWDA.AS, 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

	UMDV.AS	IWDA.AS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.19	2.22	-3.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.08	0.75	-0.84
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.81	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.07	0.68	-0.61

Drawdowns

UMDV.AS vs. IWDA.AS - Drawdown Comparison

The maximum UMDV.AS drawdown since its inception was -31.59%, smaller than the maximum IWDA.AS drawdown of -34.11%. Use the drawdown chart below to compare losses from any high point for UMDV.AS and IWDA.AS.

Drawdown Indicators

	UMDV.AS	IWDA.AS	Difference
Max Drawdown Largest peak-to-trough decline	-31.59%	-34.11%	+2.52%
Max Drawdown (1Y) Largest decline over 1 year	-27.14%	-8.39%	-18.75%
Max Drawdown (3Y) Largest decline over 3 years	-27.48%	-17.83%	-9.65%
Max Drawdown (5Y) Largest decline over 5 years	-31.59%	-25.94%	-5.65%
Max Drawdown (10Y) Largest decline over 10 years	—	-34.11%	—
Current Drawdown Current decline from peak	-24.28%	-0.49%	-23.79%
Average Drawdown Average peak-to-trough decline	-11.43%	-4.64%	-6.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.62%	1.95%	+8.67%

Volatility

UMDV.AS vs. IWDA.AS - Volatility Comparison

iShares US Medical Devices UCITS ETF (UMDV.AS) has a higher volatility of 7.25% compared to iShares Core MSCI World UCITS ETF USD (Acc) (IWDA.AS) at 2.94%. This indicates that UMDV.AS's price experiences larger fluctuations and is considered to be riskier than IWDA.AS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	UMDV.AS	IWDA.AS	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.25%	2.94%	+4.31%
Volatility (6M) Calculated over the trailing 6-month period	13.42%	8.59%	+4.83%
Volatility (1Y) Calculated over the trailing 1-year period	17.04%	11.51%	+5.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.67%	15.47%	+3.20%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.66%	15.80%	+2.86%

UMDV.AS vs. IWDA.AS - Expense Ratio Comparison

UMDV.AS has a 0.25% expense ratio, which is higher than IWDA.AS's 0.20% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

UMDV.AS vs. IWDA.AS - Dividend Comparison

Neither UMDV.AS nor IWDA.AS has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both UMDV.AS and IWDA.AS in my portfolio?

UMDV.AS and IWDA.AS have a correlation of 0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, UMDV.AS or IWDA.AS?

On fees, IWDA.AS is cheaper at 0.20% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, UMDV.AS or IWDA.AS?

IWDA.AS is cheaper with a 0.20% expense ratio, compared with 0.25% for UMDV.AS.

What is the main difference between UMDV.AS and IWDA.AS?

UMDV.AS is categorized as Health & Biotech Equities, while IWDA.AS is Global Equities. UMDV.AS tracks MSCI World/Health Care NR USD, while IWDA.AS tracks MSCI World Index. Their fees differ too: 0.25% for UMDV.AS and 0.20% for IWDA.AS.