IDX vs. EWT

Last updated Jun 24, 2026

IDX (VanEck Vectors Indonesia Index ETF) and EWT (iShares MSCI Taiwan ETF) are both Asia Pacific Equities funds - IDX tracks the MVIS Indonesia Index while EWT tracks the MSCI Taiwan 25/50 Index. Both are passively managed. Over the past 10 years, IDX returned -3.79%/yr vs 20.43%/yr for EWT. A 0.57 correlation means they provide meaningful diversification when combined. IDX charges 0.57%/yr vs 0.59%/yr for EWT.

Performance

IDX vs. EWT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in VanEck Vectors Indonesia Index ETF (IDX) and iShares MSCI Taiwan ETF (EWT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IDX achieves a -34.83% return, which is significantly lower than EWT's 65.65% return. Over the past 10 years, IDX has underperformed EWT with an annualized return of -3.79%, while EWT has yielded a comparatively higher 20.43% annualized return.

IDX

• 1D: -0.55%
• 1M: -2.54%
• YTD: -34.83%
• 6M: -35.84%
• 1Y: -21.80%
• 3Y*: -12.82%
• 5Y*: -7.49%
• 10Y*: -3.79%

EWT

• 1D: -5.64%
• 1M: 8.67%
• YTD: 65.65%
• 6M: 68.38%
• 1Y: 99.48%
• 3Y*: 39.48%
• 5Y*: 19.11%
• 10Y*: 20.43%

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

IDX vs. EWT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IDX VanEck Vectors Indonesia Index ETF	-34.83%	13.83%	-9.75%	1.98%	-9.40%	-2.59%	-7.45%	6.26%	-10.46%	19.24%
EWT iShares MSCI Taiwan ETF	65.65%	28.38%	16.11%	29.00%	-28.90%	26.18%	31.50%	33.36%	-9.90%	26.81%

Correlation

The correlation between IDX and EWT is 0.28, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.28
Correlation (3Y) Calculated over the trailing 3-year period	0.36
Correlation (5Y) Calculated over the trailing 5-year period	0.41
Correlation (10Y) Calculated over the trailing 10-year period	0.52
Correlation (All Time) Calculated using the full available price history since Jan 20, 2009	0.57

Over the past year, the correlation between IDX and EWT has dropped to 0.28 - well below their long-term average of 0.57, suggesting their price drivers have been diverging.

IDX vs. EWT - Sectors Allocation Comparison

Sectors	IDX	EWT
Financial Services	29.1%	12.0%
Basic Materials	21.3%	2.9%
Consumer Defensive	9.7%	1.0%
Communication Services	9.5%	1.7%
Energy	9.5%	-
Consumer Cyclical	7.2%	1.6%
Utilities	4.2%	-
Technology	2.2%	76.9%
Healthcare	1.7%	1.0%
Real Estate	1.2%	-
Industrials	0.3%	3.1%

Return for Risk

IDX vs. EWT — Risk / Return Rank

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

IDX

IDX Risk / Return Rank: 3
IDX Sharpe Ratio Rank: 3
IDX Sortino Ratio Rank: 3
IDX Omega Ratio Rank: 3
IDX Calmar Ratio Rank: 5
IDX Martin Ratio Rank: 1

EWT

EWT Risk / Return Rank: 94
EWT Sharpe Ratio Rank: 95
EWT Sortino Ratio Rank: 90
EWT Omega Ratio Rank: 92
EWT Calmar Ratio Rank: 97
EWT Martin Ratio Rank: 95

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.

IDX vs. EWT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for VanEck Vectors Indonesia Index ETF (IDX) and iShares MSCI Taiwan ETF (EWT). 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.

	IDX	EWT	Difference
Sharpe ratio: Return per unit of total volatility	-0.80	3.59	-4.39
Sortino ratio: Return per unit of downside risk	-0.98	4.02	-5.00
Omega ratio: Gain probability vs. loss probability	0.87	1.58	-0.71
Calmar ratio: Return relative to maximum drawdown	-0.49	9.52	-10.01
Martin ratio: Return relative to average drawdown	-1.41	27.93	-29.34

IDX vs. EWT - Sharpe Ratio Comparison

The current IDX Sharpe Ratio is -0.80, which is lower than the EWT Sharpe Ratio of 3.59. The chart below compares the historical Sharpe Ratios of IDX and EWT, 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

IDX vs. EWT - Drawdown Comparison

The maximum IDX drawdown since its inception was -63.14%, roughly equal to the maximum EWT drawdown of -64.37%. Use the drawdown chart below to compare losses from any high point for IDX and EWT.

Drawdown Indicators

	IDX	EWT	Difference
Max Drawdown Largest peak-to-trough decline	-63.14%	-64.37%	+1.23%
Max Drawdown (1Y) Largest decline over 1 year	-44.52%	-10.51%	-34.01%
Max Drawdown (3Y) Largest decline over 3 years	-46.73%	-25.66%	-21.07%
Max Drawdown (5Y) Largest decline over 5 years	-51.25%	-38.88%	-12.37%
Max Drawdown (10Y) Largest decline over 10 years	-59.11%	-38.88%	-20.23%
Current Drawdown Current decline from peak	-55.80%	-5.64%	-50.16%
Average Drawdown Average peak-to-trough decline	-24.92%	-19.13%	-5.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.47%	3.57%	+11.90%

Volatility

IDX vs. EWT - Volatility Comparison

The current volatility for VanEck Vectors Indonesia Index ETF (IDX) is 13.48%, while iShares MSCI Taiwan ETF (EWT) has a volatility of 14.88%. This indicates that IDX experiences smaller price fluctuations and is considered to be less risky than EWT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IDX	EWT	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.48%	14.88%	-1.40%
Volatility (6M) Calculated over the trailing 6-month period	24.92%	23.89%	+1.03%
Volatility (1Y) Calculated over the trailing 1-year period	27.38%	27.85%	-0.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.01%	23.16%	-2.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.47%	21.80%	+2.67%

IDX vs. EWT - Expense Ratio Comparison

IDX has a 0.57% expense ratio, which is lower than EWT's 0.59% expense ratio.

Dividends

IDX vs. EWT - Dividend Comparison

IDX's dividend yield for the trailing twelve months is around 3.20%, more than EWT's 2.68% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EWT iShares MSCI Taiwan ETF	2.68%	4.43%	3.32%	12.01%	18.82%	0.55%	1.83%	2.49%	3.16%	2.81%	2.39%	3.12%
IDX VanEck Vectors Indonesia Index ETF	3.20%	2.08%	4.01%	3.62%	3.64%	1.08%	1.66%	2.21%	2.19%	1.85%	1.16%	2.43%

Frequently Asked Questions

Can I hold both IDX and EWT in my portfolio?

IDX and EWT have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IDX or EWT?

EWT has higher volatility (14.88%) compared to IDX (13.48%). In terms of maximum drawdown, IDX dropped -63.14% vs EWT's -64.37%.

Which ETF is better, IDX or EWT?

On 10-year performance, EWT leads with 20.43% vs -3.79% for IDX. On fees, IDX is cheaper at 0.57% per year. On volatility, IDX has been the lower-risk option at 13.48%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IDX or EWT?

Over the 10-year period, EWT has performed better with a 20.43% return vs -3.79%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IDX or EWT?

IDX is cheaper with a 0.57% expense ratio, compared with 0.59% for EWT.

Which ETF pays a higher dividend yield, IDX or EWT?

IDX has the higher dividend yield at 3.20%, compared with 2.68% for EWT.

What is the main difference between IDX and EWT?

IDX tracks MVIS Indonesia Index, while EWT tracks MSCI Taiwan 25/50 Index. They also come from different issuers: VanEck and iShares. Their fees differ too: 0.57% for IDX and 0.59% for EWT.

Which has better risk-adjusted returns?

EWT currently has the higher Sharpe Ratio (3.59 vs -0.80), 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.