IWDP.AS vs. BIRDX

Last updated Jun 4, 2026

IWDP.AS (iShares Developed Markets Property Yield UCITS ETF USD (Dist)) and BIRDX (iShares Developed Real Estate Index Fund) are both REIT funds. Over the past 10 years, IWDP.AS returned 2.95%/yr vs 3.35%/yr for BIRDX. A 0.67 correlation means they provide meaningful diversification when combined. IWDP.AS charges 0.59%/yr vs 0.19%/yr for BIRDX.

Performance

IWDP.AS vs. BIRDX - Performance Comparison

The chart below illustrates the hypothetical performance of a €10,000 investment in iShares Developed Markets Property Yield UCITS ETF USD (Dist) (IWDP.AS) and iShares Developed Real Estate Index Fund (BIRDX). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, IWDP.AS achieves a 7.91% return, which is significantly lower than BIRDX's 8.32% return. Over the past 10 years, IWDP.AS has underperformed BIRDX with an annualized return of 2.95%, while BIRDX has yielded a comparatively higher 3.35% annualized return.

IWDP.AS

• 1D: 0.41%
• 1M: -0.38%
• YTD: 7.91%
• 6M: 8.11%
• 1Y: 8.45%
• 3Y*: 5.65%
• 5Y*: 1.62%
• 10Y*: 2.95%

BIRDX

• 1D: 0.35%
• 1M: -1.10%
• YTD: 8.32%
• 6M: 7.35%
• 1Y: 9.65%
• 3Y*: 6.54%
• 5Y*: 2.44%
• 10Y*: 3.35%

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

IWDP.AS vs. BIRDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IWDP.AS iShares Developed Markets Property Yield UCITS ETF USD (Dist)	7.91%	-3.33%	6.79%	5.38%	-19.61%	36.11%	-17.19%	23.60%	-1.01%	-2.62%
BIRDX iShares Developed Real Estate Index Fund	8.32%	-2.82%	8.19%	7.07%	-20.01%	36.40%	-15.80%	25.10%	-0.33%	-5.66%

Correlation

The correlation between IWDP.AS and BIRDX is 0.61, 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	0.61
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.62
Correlation (10Y) Calculated over the trailing 10-year period	0.66
Correlation (All Time) Calculated using the full available price history since Jan 5, 2016	0.67

The correlation between IWDP.AS and BIRDX has been stable across timeframes, ranging from 0.61 to 0.67 - a consistent structural relationship.

Return for Risk

IWDP.AS vs. BIRDX — Risk / Return Rank

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

IWDP.AS

IWDP.AS Risk / Return Rank: 22
IWDP.AS Sharpe Ratio Rank: 22
IWDP.AS Sortino Ratio Rank: 21
IWDP.AS Omega Ratio Rank: 21
IWDP.AS Calmar Ratio Rank: 24
IWDP.AS Martin Ratio Rank: 24

BIRDX

BIRDX Risk / Return Rank: 13
BIRDX Sharpe Ratio Rank: 13
BIRDX Sortino Ratio Rank: 12
BIRDX Omega Ratio Rank: 13
BIRDX Calmar Ratio Rank: 12
BIRDX Martin Ratio Rank: 15

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.

IWDP.AS vs. BIRDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Developed Markets Property Yield UCITS ETF USD (Dist) (IWDP.AS) and iShares Developed Real Estate Index Fund (BIRDX). 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.

	IWDP.AS	BIRDX	Difference
Sharpe ratio: Return per unit of total volatility	0.77	0.87	-0.10
Sortino ratio: Return per unit of downside risk	1.14	1.23	-0.09
Omega ratio: Gain probability vs. loss probability	1.14	1.17	-0.03
Calmar ratio: Return relative to maximum drawdown	1.11	1.15	-0.04
Martin ratio: Return relative to average drawdown	3.24	3.77	-0.52
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IWDP.AS vs. BIRDX - Sharpe Ratio Comparison

The current IWDP.AS Sharpe Ratio is 0.77, which is comparable to the BIRDX Sharpe Ratio of 0.87. The chart below compares the historical Sharpe Ratios of IWDP.AS and BIRDX, 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

	IWDP.AS	BIRDX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.77	0.87	-0.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.11	0.13	-0.02
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.18	0.18	0.00
Sharpe Ratio (All Time) Calculated using the full available price history	0.17	0.19	-0.02

Drawdowns

IWDP.AS vs. BIRDX - Drawdown Comparison

The maximum IWDP.AS drawdown since its inception was -70.13%, which is greater than BIRDX's maximum drawdown of -42.59%. Use the drawdown chart below to compare losses from any high point for IWDP.AS and BIRDX.

Drawdown Indicators

	IWDP.AS	BIRDX	Difference
Max Drawdown Largest peak-to-trough decline	-70.13%	-42.59%	-27.54%
Max Drawdown (1Y) Largest decline over 1 year	-7.55%	-8.42%	+0.87%
Max Drawdown (3Y) Largest decline over 3 years	-19.92%	-27.53%	+7.61%
Max Drawdown (5Y) Largest decline over 5 years	-29.88%	-28.72%	-1.16%
Max Drawdown (10Y) Largest decline over 10 years	-41.55%	-42.59%	+1.04%
Current Drawdown Current decline from peak	-7.03%	-11.94%	+4.91%
Average Drawdown Average peak-to-trough decline	-15.78%	-11.88%	-3.90%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.59%	2.56%	+0.03%

Volatility

IWDP.AS vs. BIRDX - Volatility Comparison

iShares Developed Markets Property Yield UCITS ETF USD (Dist) (IWDP.AS) has a higher volatility of 3.54% compared to iShares Developed Real Estate Index Fund (BIRDX) at 3.16%. This indicates that IWDP.AS's price experiences larger fluctuations and is considered to be riskier than BIRDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IWDP.AS	BIRDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.54%	3.16%	+0.38%
Volatility (6M) Calculated over the trailing 6-month period	8.15%	8.35%	-0.20%
Volatility (1Y) Calculated over the trailing 1-year period	10.90%	11.09%	-0.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.41%	18.31%	-3.90%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.98%	18.76%	-2.78%

IWDP.AS vs. BIRDX - Expense Ratio Comparison

IWDP.AS has a 0.59% expense ratio, which is higher than BIRDX's 0.19% expense ratio.

Dividends

IWDP.AS vs. BIRDX - Dividend Comparison

IWDP.AS's dividend yield for the trailing twelve months is around 3.01%, less than BIRDX's 6.63% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BIRDX iShares Developed Real Estate Index Fund	6.63%	6.84%	23.69%	2.99%	1.24%	4.18%	1.91%	6.67%	4.18%	1.70%	2.24%	0.00%
IWDP.AS iShares Developed Markets Property Yield UCITS ETF USD (Dist)	3.01%	3.20%	3.10%	3.16%	3.71%	2.11%	3.18%	2.91%	3.87%	3.11%	3.07%	2.96%

Frequently Asked Questions

Can I hold both IWDP.AS and BIRDX in my portfolio?

IWDP.AS and BIRDX have a correlation of 0.61, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.