IAUS.L vs. IDTW.L

Last updated Jul 22, 2026

IAUS.L (iShares MSCI Australia UCITS ETF USD (Acc)) and IDTW.L (iShares MSCI Taiwan UCITS ETF USD (Dist)) are both exchange-traded funds - IAUS.L is a Asia Pacific Equities fund tracking the MSCI Australia Index (Net), while IDTW.L is a Technology Equities fund tracking the MSCI Taiwan 20/35 Index (Net) (USD). Both are passively managed. Over the past 10 years, IAUS.L returned 7.93%/yr vs 20.46%/yr for IDTW.L. A 0.62 correlation means they provide meaningful diversification when combined. IAUS.L charges 0.50%/yr vs 0.74%/yr for IDTW.L.

Performance

IAUS.L vs. IDTW.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares MSCI Australia UCITS ETF USD (Acc) (IAUS.L) and iShares MSCI Taiwan UCITS ETF USD (Dist) (IDTW.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IAUS.L achieves a 10.07% return, which is significantly lower than IDTW.L's 58.99% return. Over the past 10 years, IAUS.L has underperformed IDTW.L with an annualized return of 7.93%, while IDTW.L has yielded a comparatively higher 20.46% annualized return.

IAUS.L

• 1D: 0.00%
• 1M: 0.74%
• 6M: 9.27%
• YTD: 10.07%
• 1Y: 11.31%
• 3Y*: 11.10%
• 5Y*: 6.54%
• 10Y*: 7.93%
• ALL TIME*: 5.87%

IDTW.L

• 1D: 4.62%
• 1M: -7.41%
• 6M: 49.55%
• YTD: 58.99%
• 1Y: 81.14%
• 3Y*: 41.20%
• 5Y*: 20.35%
• 10Y*: 20.46%
• ALL TIME*: 12.29%

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

IAUS.L vs. IDTW.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IAUS.L iShares MSCI Australia UCITS ETF USD (Acc)	10.07%	13.86%	1.70%	13.84%	-5.50%	8.27%	9.46%	21.85%	-12.47%	20.13%
IDTW.L iShares MSCI Taiwan UCITS ETF USD (Dist)	58.99%	31.78%	23.61%	28.84%	-29.55%	28.51%	34.35%	34.44%	-9.12%	28.06%

Correlation

The correlation between IAUS.L and IDTW.L is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (3Y) Calculated over the trailing 3-year period	0.57
Correlation (5Y) Calculated over the trailing 5-year period	0.61
Correlation (10Y) Calculated over the trailing 10-year period	0.59
Correlation (All Time) Calculated using the full available price history since Jan 22, 2010	0.62

The correlation between IAUS.L and IDTW.L shifts across timeframes, from 0.49 (1 year) to 0.62 (all time), reflecting how their relationship changes across market environments.

IAUS.L vs. IDTW.L - Sectors Allocation Comparison

Sectors	IAUS.L	IDTW.L
Financial Services	41.7%	11.9%
Basic Materials	24.5%	2.3%
Consumer Cyclical	7.3%	1.1%
Real Estate	5.0%	-
Healthcare	4.9%	0.7%
Industrials	4.4%	1.6%
Consumer Defensive	4.0%	0.7%
Energy	3.8%	-
Communication Services	1.8%	1.3%
Utilities	1.6%	-
Technology	0.9%	80.4%

Return for Risk

IAUS.L vs. IDTW.L — Risk / Return Rank

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

IAUS.L

IAUS.L Risk / Return Rank: 28
IAUS.L Sharpe Ratio Rank: 27
IAUS.L Sortino Ratio Rank: 28
IAUS.L Omega Ratio Rank: 26
IAUS.L Calmar Ratio Rank: 31
IAUS.L Martin Ratio Rank: 29

IDTW.L

IDTW.L Risk / Return Rank: 93
IDTW.L Sharpe Ratio Rank: 95
IDTW.L Sortino Ratio Rank: 91
IDTW.L Omega Ratio Rank: 91
IDTW.L Calmar Ratio Rank: 95
IDTW.L Martin Ratio Rank: 93

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.

IAUS.L vs. IDTW.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI Australia UCITS ETF USD (Acc) (IAUS.L) and iShares MSCI Taiwan UCITS ETF USD (Dist) (IDTW.L). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	IAUS.L	IDTW.L	Difference
Sharpe ratio: Return per unit of total volatility	0.71	2.83	-2.12
Sortino ratio: Return per unit of downside risk	1.16	3.42	-2.26
Omega ratio: Gain probability vs. loss probability	1.13	1.46	-0.33
Calmar ratio: Return relative to maximum drawdown	1.16	5.58	-4.42
Martin ratio: Return relative to average drawdown	2.84	17.71	-14.87

IAUS.L vs. IDTW.L - Sharpe Ratio Comparison

The current IAUS.L Sharpe Ratio is 0.71, which is lower than the IDTW.L Sharpe Ratio of 2.83. The chart below compares the historical Sharpe Ratios of IAUS.L and IDTW.L, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

IAUS.L vs. IDTW.L - Drawdown Comparison

The maximum IAUS.L drawdown since its inception was -44.76%, smaller than the maximum IDTW.L drawdown of -60.07%. Use the drawdown chart below to compare losses from any high point for IAUS.L and IDTW.L.

Drawdown Indicators

	IAUS.L	IDTW.L	Difference
Max Drawdown Largest peak-to-trough decline	-44.76%	-60.07%	+15.31%
Max Drawdown (1Y) Largest decline over 1 year	-9.68%	-14.46%	+4.78%
Max Drawdown (3Y) Largest decline over 3 years	-23.04%	-28.24%	+5.20%
Max Drawdown (5Y) Largest decline over 5 years	-24.60%	-40.98%	+16.38%
Max Drawdown (10Y) Largest decline over 10 years	-44.76%	-40.98%	-3.78%
Current Drawdown Current decline from peak	-4.38%	-10.39%	+6.01%
Average Drawdown Average peak-to-trough decline	-9.26%	-12.59%	+3.33%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.98%	4.57%	-0.59%

Volatility

IAUS.L vs. IDTW.L - Volatility Comparison

The current volatility for iShares MSCI Australia UCITS ETF USD (Acc) (IAUS.L) is 3.52%, while iShares MSCI Taiwan UCITS ETF USD (Dist) (IDTW.L) has a volatility of 12.55%. This indicates that IAUS.L experiences smaller price fluctuations and is considered to be less risky than IDTW.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IAUS.L	IDTW.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.52%	12.55%	-9.03%
Volatility (6M) Calculated over the trailing 6-month period	13.34%	25.11%	-11.77%
Volatility (1Y) Calculated over the trailing 1-year period	15.89%	28.56%	-12.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.49%	24.04%	-4.55%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.74%	22.46%	-1.72%

IAUS.L vs. IDTW.L - Expense Ratio Comparison

IAUS.L has a 0.50% expense ratio, which is lower than IDTW.L's 0.74% expense ratio.

Dividends

IAUS.L vs. IDTW.L - Dividend Comparison

IAUS.L has not paid dividends to shareholders, while IDTW.L's dividend yield for the trailing twelve months is around 0.95%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IAUS.L iShares MSCI Australia UCITS ETF USD (Acc)	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
IDTW.L iShares MSCI Taiwan UCITS ETF USD (Dist)	0.95%	1.51%	1.43%	2.09%	3.39%	1.35%	1.73%	2.15%	2.78%	2.70%	3.10%	3.33%

Frequently Asked Questions

Can I hold both IAUS.L and IDTW.L in my portfolio?

IAUS.L and IDTW.L have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IAUS.L or IDTW.L?

On fees, IAUS.L is cheaper at 0.50% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IAUS.L or IDTW.L?

IAUS.L is cheaper with a 0.50% expense ratio, compared with 0.74% for IDTW.L.

What is the main difference between IAUS.L and IDTW.L?

IAUS.L is categorized as Asia Pacific Equities, while IDTW.L is Technology Equities. IAUS.L tracks MSCI Australia Index (Net), while IDTW.L tracks MSCI Taiwan 20/35 Index (Net) (USD). Their fees differ too: 0.50% for IAUS.L and 0.74% for IDTW.L.