IWB vs. DFIV

Last updated Jun 9, 2026

IWB (iShares Russell 1000 ETF) and DFIV (Dimensional International Value ETF) are both exchange-traded funds - IWB is a Large Cap Blend Equities fund tracking the Russell 1000 Index, while DFIV is a Foreign Large Cap Equities fund actively managed by Dimensional. IWB is passively managed, while DFIV is actively managed. Over the past 3 years, IWB returned 21.07%/yr vs 23.03%/yr for DFIV. A 0.68 correlation means they provide meaningful diversification when combined. IWB charges 0.15%/yr vs 0.27%/yr for DFIV.

Performance

IWB vs. DFIV - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell 1000 ETF (IWB) and Dimensional International Value ETF (DFIV). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IWB achieves a 8.46% return, which is significantly lower than DFIV's 10.17% return.

IWB

• 1D: 0.26%
• 1M: 0.43%
• YTD: 8.46%
• 6M: 8.45%
• 1Y: 23.94%
• 3Y*: 21.07%
• 5Y*: 12.59%
• 10Y*: 14.97%

DFIV

• 1D: 0.38%
• 1M: -0.58%
• YTD: 10.17%
• 6M: 14.07%
• 1Y: 32.57%
• 3Y*: 23.03%
• 5Y*: —
• 10Y*: —

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

IWB vs. DFIV - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
IWB iShares Russell 1000 ETF	8.46%	17.18%	24.32%	26.39%	-19.19%	6.05%
DFIV Dimensional International Value ETF	10.17%	45.36%	7.26%	17.75%	-3.70%	0.50%

Correlation

The correlation between IWB and DFIV is 0.66, 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	0.66
Correlation (3Y) Calculated over the trailing 3-year period	0.62
Correlation (All Time) Calculated using the full available price history since Sep 13, 2021	0.68

The correlation between IWB and DFIV has been stable across timeframes, ranging from 0.62 to 0.68 - a consistent structural relationship.

IWB vs. DFIV - Sectors Allocation Comparison

Sectors	IWB	DFIV
Technology	36.6%	2.8%
Financial Services	11.3%	32.4%
Communication Services	10.4%	4.2%
Consumer Cyclical	10.0%	9.6%
Industrials	8.6%	9.6%
Healthcare	8.6%	4.9%
Consumer Defensive	4.5%	4.9%
Energy	3.3%	16.4%
Utilities	2.5%	2.5%
Real Estate	2.1%	1.8%
Basic Materials	1.9%	10.9%

Return for Risk

IWB vs. DFIV — Risk / Return Rank

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

IWB

IWB Risk / Return Rank: 66
IWB Sharpe Ratio Rank: 66
IWB Sortino Ratio Rank: 64
IWB Omega Ratio Rank: 66
IWB Calmar Ratio Rank: 60
IWB Martin Ratio Rank: 73

DFIV

DFIV Risk / Return Rank: 78
DFIV Sharpe Ratio Rank: 81
DFIV Sortino Ratio Rank: 80
DFIV Omega Ratio Rank: 79
DFIV Calmar Ratio Rank: 74
DFIV Martin Ratio Rank: 76

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.

IWB vs. DFIV - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell 1000 ETF (IWB) and Dimensional International Value ETF (DFIV). 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.

	IWB	DFIV	Difference
Sharpe ratio: Return per unit of total volatility	1.98	2.36	-0.38
Sortino ratio: Return per unit of downside risk	2.68	3.20	-0.53
Omega ratio: Gain probability vs. loss probability	1.36	1.42	-0.06
Calmar ratio: Return relative to maximum drawdown	2.71	3.39	-0.68
Martin ratio: Return relative to average drawdown	12.38	13.05	-0.66
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IWB vs. DFIV - Sharpe Ratio Comparison

The current IWB Sharpe Ratio is 1.98, which is comparable to the DFIV Sharpe Ratio of 2.36. The chart below compares the historical Sharpe Ratios of IWB and DFIV, 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

	IWB	DFIV	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.98	2.36	-0.38
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.74	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.83	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.45	0.91	-0.47

Drawdowns

IWB vs. DFIV - Drawdown Comparison

The maximum IWB drawdown since its inception was -55.38%, which is greater than DFIV's maximum drawdown of -25.42%. Use the drawdown chart below to compare losses from any high point for IWB and DFIV.

Drawdown Indicators

	IWB	DFIV	Difference
Max Drawdown Largest peak-to-trough decline	-55.38%	-25.42%	-29.96%
Max Drawdown (1Y) Largest decline over 1 year	-8.86%	-9.66%	+0.80%
Max Drawdown (3Y) Largest decline over 3 years	-19.09%	-14.72%	-4.37%
Max Drawdown (5Y) Largest decline over 5 years	-25.20%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-34.60%	—	—
Current Drawdown Current decline from peak	-2.58%	-2.23%	-0.35%
Average Drawdown Average peak-to-trough decline	-10.85%	-4.47%	-6.38%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.94%	2.50%	-0.56%

Volatility

IWB vs. DFIV - Volatility Comparison

iShares Russell 1000 ETF (IWB) and Dimensional International Value ETF (DFIV) have volatilities of 3.74% and 3.83%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IWB	DFIV	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.74%	3.83%	-0.09%
Volatility (6M) Calculated over the trailing 6-month period	9.37%	11.26%	-1.89%
Volatility (1Y) Calculated over the trailing 1-year period	12.20%	13.91%	-1.71%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.14%	16.65%	+0.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.16%	16.65%	+1.51%

IWB vs. DFIV - Expense Ratio Comparison

IWB has a 0.15% expense ratio, which is lower than DFIV's 0.27% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

IWB vs. DFIV - Dividend Comparison

IWB's dividend yield for the trailing twelve months is around 0.93%, less than DFIV's 2.59% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFIV Dimensional International Value ETF	2.59%	2.92%	3.88%	3.93%	3.84%	2.30%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
IWB iShares Russell 1000 ETF	0.93%	1.00%	1.14%	1.31%	1.56%	1.09%	1.37%	1.71%	2.06%	1.64%	1.89%	1.95%

Frequently Asked Questions

Can I hold both IWB and DFIV in my portfolio?

IWB and DFIV have a correlation of 0.66, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IWB or DFIV?

DFIV has higher volatility (3.83%) compared to IWB (3.74%). In terms of maximum drawdown, IWB dropped -55.38% vs DFIV's -25.42%.

Which ETF is better, IWB or DFIV?

On 3-year performance, DFIV leads with 23.03% vs 21.07% for IWB. On fees, IWB is cheaper at 0.15% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IWB or DFIV?

Over the 3-year period, DFIV has performed better with a 23.03% return vs 21.07%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IWB or DFIV?

IWB is cheaper with a 0.15% expense ratio, compared with 0.27% for DFIV.

Which ETF pays a higher dividend yield, IWB or DFIV?

DFIV has the higher dividend yield at 2.59%, compared with 0.93% for IWB.

What is the main difference between IWB and DFIV?

IWB is categorized as Large Cap Blend Equities, while DFIV is Foreign Large Cap Equities. They also come from different issuers: iShares and Dimensional. Their fees differ too: 0.15% for IWB and 0.27% for DFIV.

Which has better risk-adjusted returns?

DFIV currently has the higher Sharpe Ratio (2.36 vs 1.98), 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.