THD vs. IWM

Last updated Jun 4, 2026

THD (iShares MSCI Thailand ETF) and IWM (iShares Russell 2000 ETF) are both exchange-traded funds - THD is a Asia Pacific Equities fund tracking the MSCI Thailand Investable Market Index, while IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index. Both are passively managed. Over the past 10 years, THD returned 3.47%/yr vs 10.93%/yr for IWM. At a 0.49 correlation, their price movements are largely independent. THD charges 0.59%/yr vs 0.19%/yr for IWM.

Performance

THD vs. IWM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares MSCI Thailand ETF (THD) and iShares Russell 2000 ETF (IWM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, THD achieves a 24.17% return, which is significantly higher than IWM's 17.07% return. Over the past 10 years, THD has underperformed IWM with an annualized return of 3.47%, while IWM has yielded a comparatively higher 10.93% annualized return.

THD

• 1D: -0.75%
• 1M: 5.54%
• YTD: 24.17%
• 6M: 25.06%
• 1Y: 42.49%
• 3Y*: 5.77%
• 5Y*: 0.86%
• 10Y*: 3.47%

IWM

• 1D: -1.37%
• 1M: 3.52%
• YTD: 17.07%
• 6M: 15.83%
• 1Y: 39.10%
• 3Y*: 17.88%
• 5Y*: 6.11%
• 10Y*: 10.93%

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

THD vs. IWM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
THD iShares MSCI Thailand ETF	24.17%	2.36%	-2.21%	-12.63%	1.22%	1.87%	-9.89%	8.32%	-8.25%	31.45%
IWM iShares Russell 2000 ETF	17.07%	12.66%	11.38%	16.83%	-20.48%	14.54%	20.03%	25.39%	-11.12%	14.58%

Correlation

The correlation between THD and IWM is 0.36, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.36
Correlation (3Y) Calculated over the trailing 3-year period	0.37
Correlation (5Y) Calculated over the trailing 5-year period	0.40
Correlation (10Y) Calculated over the trailing 10-year period	0.42
Correlation (All Time) Calculated using the full available price history since Apr 2, 2008	0.49

The correlation between THD and IWM shifts across timeframes, from 0.36 (1 year) to 0.49 (all time), reflecting how their relationship changes across market environments.

THD vs. IWM - Sectors Allocation Comparison

Sectors	THD	IWM
Industrials	29.3%	17.1%
Energy	14.3%	6.0%
Financial Services	11.2%	15.8%
Communication Services	10.3%	2.0%
Consumer Defensive	7.8%	2.1%
Utilities	6.7%	3.0%
Healthcare	6.4%	15.8%
Real Estate	5.1%	5.7%
Consumer Cyclical	4.6%	7.8%
Basic Materials	3.5%	4.5%
Technology	0.9%	19.5%

Return for Risk

THD vs. IWM — Risk / Return Rank

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

THD

THD Risk / Return Rank: 55
THD Sharpe Ratio Rank: 55
THD Sortino Ratio Rank: 53
THD Omega Ratio Rank: 50
THD Calmar Ratio Rank: 65
THD Martin Ratio Rank: 54

IWM

IWM Risk / Return Rank: 62
IWM Sharpe Ratio Rank: 59
IWM Sortino Ratio Rank: 59
IWM Omega Ratio Rank: 53
IWM Calmar Ratio Rank: 70
IWM Martin Ratio Rank: 67

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.

THD vs. IWM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI Thailand ETF (THD) and iShares Russell 2000 ETF (IWM). 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.

	THD	IWM	Difference
Sharpe ratio Return per unit of total volatility	1.88	2.05	-0.17
Sortino ratio Return per unit of downside risk	2.60	2.85	-0.26
Omega ratio Gain probability vs. loss probability	1.32	1.34	-0.02
Calmar ratio Return relative to maximum drawdown	3.25	3.56	-0.31
Martin ratio Return relative to average drawdown	9.35	12.64	-3.29
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

THD vs. IWM - Sharpe Ratio Comparison

The current THD Sharpe Ratio is 1.88, which is comparable to the IWM Sharpe Ratio of 2.05. The chart below compares the historical Sharpe Ratios of THD and IWM, 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

	THD	IWM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.88	2.05	-0.17
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.04	0.27	-0.23
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.16	0.48	-0.31
Sharpe Ratio (All Time) Calculated using the full available price history	0.18	0.37	-0.18

Drawdowns

THD vs. IWM - Drawdown Comparison

The maximum THD drawdown since its inception was -64.22%, which is greater than IWM's maximum drawdown of -59.05%. Use the drawdown chart below to compare losses from any high point for THD and IWM.

Drawdown Indicators

	THD	IWM	Difference
Max Drawdown Largest peak-to-trough decline	-64.22%	-59.05%	-5.17%
Max Drawdown (1Y) Largest decline over 1 year	-13.12%	-11.03%	-2.09%
Max Drawdown (3Y) Largest decline over 3 years	-34.11%	-27.50%	-6.61%
Max Drawdown (5Y) Largest decline over 5 years	-40.24%	-31.91%	-8.33%
Max Drawdown (10Y) Largest decline over 10 years	-49.32%	-41.13%	-8.19%
Current Drawdown Current decline from peak	-8.82%	-1.49%	-7.33%
Average Drawdown Average peak-to-trough decline	-18.28%	-10.77%	-7.51%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.58%	3.10%	+1.48%

Volatility

THD vs. IWM - Volatility Comparison

iShares MSCI Thailand ETF (THD) has a higher volatility of 6.41% compared to iShares Russell 2000 ETF (IWM) at 5.75%. This indicates that THD's price experiences larger fluctuations and is considered to be riskier than IWM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	THD	IWM	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.41%	5.75%	+0.66%
Volatility (6M) Calculated over the trailing 6-month period	18.28%	13.53%	+4.75%
Volatility (1Y) Calculated over the trailing 1-year period	22.67%	19.20%	+3.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.79%	22.52%	-2.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.58%	23.04%	-1.46%

THD vs. IWM - Expense Ratio Comparison

THD has a 0.59% expense ratio, which is higher than IWM's 0.19% expense ratio.

Dividends

THD vs. IWM - Dividend Comparison

THD's dividend yield for the trailing twelve months is around 2.71%, more than IWM's 0.88% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IWM iShares Russell 2000 ETF	0.88%	1.04%	1.15%	1.35%	1.48%	0.94%	1.04%	1.26%	1.40%	1.26%	1.38%	1.54%
THD iShares MSCI Thailand ETF	2.71%	3.36%	3.15%	2.92%	2.41%	3.16%	2.31%	2.42%	2.57%	2.16%	2.61%	3.58%

Frequently Asked Questions

Can I hold both THD and IWM in my portfolio?

THD and IWM have a correlation of 0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, THD or IWM?

THD has higher volatility (6.41%) compared to IWM (5.75%). In terms of maximum drawdown, THD dropped -64.22% vs IWM's -59.05%.

Which ETF is better, THD or IWM?

On 10-year performance, IWM leads with 10.93% vs 3.47% for THD. On fees, IWM is cheaper at 0.19% per year. On volatility, IWM has been the lower-risk option at 5.75%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, THD or IWM?

Over the 10-year period, IWM has performed better with a 10.93% return vs 3.47%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, THD or IWM?

IWM is cheaper with a 0.19% expense ratio, compared with 0.59% for THD.

Which ETF pays a higher dividend yield, THD or IWM?

THD has the higher dividend yield at 2.71%, compared with 0.88% for IWM.

What is the main difference between THD and IWM?

THD is categorized as Asia Pacific Equities, while IWM is Small Cap Blend Equities. THD tracks MSCI Thailand Investable Market Index, while IWM tracks Russell 2000 Index. Their fees differ too: 0.59% for THD and 0.19% for IWM.

Which has better risk-adjusted returns?

IWM currently has the higher Sharpe Ratio (2.05 vs 1.88), 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.