WHCS.AS vs. MEDI

Last updated Jun 5, 2026

WHCS.AS (iShares MSCI World Health Care Sector UCITS ETF USD Inc) and MEDI (Harbor Health Care ETF) are both Health & Biotech Equities funds. WHCS.AS is passively managed, while MEDI is actively managed. Over the past 3 years, WHCS.AS returned 3.43%/yr vs 13.36%/yr for MEDI. At a 0.46 correlation, their price movements are largely independent. WHCS.AS charges 1.00%/yr vs 0.80%/yr for MEDI.

Performance

WHCS.AS vs. MEDI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares MSCI World Health Care Sector UCITS ETF USD Inc (WHCS.AS) and Harbor Health Care ETF (MEDI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WHCS.AS achieves a -3.10% return, which is significantly lower than MEDI's -1.24% return.

WHCS.AS

• 1D: 2.89%
• 1M: 3.09%
• YTD: -3.10%
• 6M: -1.69%
• 1Y: 9.26%
• 3Y*: 3.43%
• 5Y*: 3.72%
• 10Y*: —

MEDI

• 1D: 2.89%
• 1M: 1.48%
• YTD: -1.24%
• 6M: -2.27%
• 1Y: 20.75%
• 3Y*: 13.36%
• 5Y*: —
• 10Y*: —

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

WHCS.AS vs. MEDI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
WHCS.AS iShares MSCI World Health Care Sector UCITS ETF USD Inc	-3.10%	15.82%	-5.39%	3.78%	3.01%
MEDI Harbor Health Care ETF	-1.24%	27.11%	0.58%	24.87%	2.60%

Correlation

The correlation between WHCS.AS and MEDI is 0.60, 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	0.60
Correlation (3Y) Calculated over the trailing 3-year period	0.48
Correlation (All Time) Calculated using the full available price history since Nov 18, 2022	0.46

The correlation between WHCS.AS and MEDI shifts across timeframes, from 0.46 (all time) to 0.60 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

WHCS.AS vs. MEDI — Risk / Return Rank

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

WHCS.AS

WHCS.AS Risk / Return Rank: 20
WHCS.AS Sharpe Ratio Rank: 20
WHCS.AS Sortino Ratio Rank: 21
WHCS.AS Omega Ratio Rank: 19
WHCS.AS Calmar Ratio Rank: 20
WHCS.AS Martin Ratio Rank: 19

MEDI

MEDI Risk / Return Rank: 29
MEDI Sharpe Ratio Rank: 30
MEDI Sortino Ratio Rank: 31
MEDI Omega Ratio Rank: 28
MEDI Calmar Ratio Rank: 29
MEDI Martin Ratio Rank: 29

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.

WHCS.AS vs. MEDI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI World Health Care Sector UCITS ETF USD Inc (WHCS.AS) and Harbor Health Care ETF (MEDI). 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.

	WHCS.AS	MEDI	Difference
Sharpe ratio: Return per unit of total volatility	0.63	1.04	-0.41
Sortino ratio: Return per unit of downside risk	1.05	1.62	-0.57
Omega ratio: Gain probability vs. loss probability	1.12	1.18	-0.07
Calmar ratio: Return relative to maximum drawdown	0.86	1.36	-0.49
Martin ratio: Return relative to average drawdown	2.06	4.07	-2.01
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WHCS.AS vs. MEDI - Sharpe Ratio Comparison

The current WHCS.AS Sharpe Ratio is 0.63, which is lower than the MEDI Sharpe Ratio of 1.04. The chart below compares the historical Sharpe Ratios of WHCS.AS and MEDI, 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

	WHCS.AS	MEDI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.63	1.04	-0.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.25	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.78	-0.32

Drawdowns

WHCS.AS vs. MEDI - Drawdown Comparison

The maximum WHCS.AS drawdown since its inception was -26.37%, which is greater than MEDI's maximum drawdown of -19.24%. Use the drawdown chart below to compare losses from any high point for WHCS.AS and MEDI.

Drawdown Indicators

	WHCS.AS	MEDI	Difference
Max Drawdown Largest peak-to-trough decline	-26.37%	-19.24%	-7.13%
Max Drawdown (1Y) Largest decline over 1 year	-10.59%	-15.34%	+4.75%
Max Drawdown (3Y) Largest decline over 3 years	-19.71%	-19.24%	-0.47%
Max Drawdown (5Y) Largest decline over 5 years	-19.71%	—	—
Current Drawdown Current decline from peak	-5.71%	-5.35%	-0.36%
Average Drawdown Average peak-to-trough decline	-5.57%	-4.28%	-1.29%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.47%	5.11%	-0.64%

Volatility

WHCS.AS vs. MEDI - Volatility Comparison

The current volatility for iShares MSCI World Health Care Sector UCITS ETF USD Inc (WHCS.AS) is 4.88%, while Harbor Health Care ETF (MEDI) has a volatility of 6.67%. This indicates that WHCS.AS experiences smaller price fluctuations and is considered to be less risky than MEDI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WHCS.AS	MEDI	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.88%	6.67%	-1.79%
Volatility (6M) Calculated over the trailing 6-month period	10.53%	15.60%	-5.07%
Volatility (1Y) Calculated over the trailing 1-year period	14.50%	20.01%	-5.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.44%	18.69%	-4.25%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.38%	18.69%	-2.31%

WHCS.AS vs. MEDI - Expense Ratio Comparison

WHCS.AS has a 1.00% expense ratio, which is higher than MEDI's 0.80% expense ratio.

Dividends

WHCS.AS vs. MEDI - Dividend Comparison

WHCS.AS's dividend yield for the trailing twelve months is around 1.08%, more than MEDI's 0.28% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
MEDI Harbor Health Care ETF	0.28%	0.28%	0.54%	1.86%	0.00%	0.00%	0.00%	0.00%
WHCS.AS iShares MSCI World Health Care Sector UCITS ETF USD Inc	1.08%	1.05%	1.04%	1.15%	1.08%	1.08%	1.20%	0.10%

Frequently Asked Questions

Can I hold both WHCS.AS and MEDI in my portfolio?

WHCS.AS and MEDI have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, WHCS.AS or MEDI?

On fees, MEDI is cheaper at 0.80% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, WHCS.AS or MEDI?

MEDI is cheaper with a 0.80% expense ratio, compared with 1.00% for WHCS.AS.

What is the main difference between WHCS.AS and MEDI?

They also come from different issuers: iShares and Harbor. Their fees differ too: 1.00% for WHCS.AS and 0.80% for MEDI.