IWP vs. IWS

Last updated Jun 23, 2026

IWP (iShares Russell Mid-Cap Growth ETF) and IWS (iShares Russell Mid-Cap Value ETF) are both exchange-traded funds - IWP is a Mid Cap Growth Equities fund tracking the Russell Midcap Growth Index, while IWS is a Mid Cap Value Equities fund tracking the Russell Midcap Value Index. Both are passively managed. Over the past 10 years, IWP returned 12.76%/yr vs 10.68%/yr for IWS. Their correlation of 0.86 suggests significant overlap in exposure. Both charge a 0.23% expense ratio.

Performance

IWP vs. IWS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell Mid-Cap Growth ETF (IWP) and iShares Russell Mid-Cap Value ETF (IWS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IWP achieves a 3.69% return, which is significantly lower than IWS's 17.05% return. Over the past 10 years, IWP has outperformed IWS with an annualized return of 12.76%, while IWS has yielded a comparatively lower 10.68% annualized return.

IWP

• 1D: -0.13%
• 1M: 1.79%
• YTD: 3.69%
• 6M: 1.21%
• 1Y: 6.05%
• 3Y*: 15.53%
• 5Y*: 5.46%
• 10Y*: 12.76%

IWS

• 1D: 0.69%
• 1M: 3.76%
• YTD: 17.05%
• 6M: 15.46%
• 1Y: 29.21%
• 3Y*: 17.66%
• 5Y*: 9.34%
• 10Y*: 10.68%

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

IWP vs. IWS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IWP iShares Russell Mid-Cap Growth ETF	3.69%	8.45%	21.86%	25.70%	-26.90%	12.60%	35.25%	35.04%	-4.89%	24.93%
IWS iShares Russell Mid-Cap Value ETF	17.05%	10.82%	12.91%	12.52%	-12.29%	28.10%	4.83%	26.73%	-12.43%	13.14%

Correlation

The correlation between IWP and IWS is 0.78, 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	0.78
Correlation (3Y) Calculated over the trailing 3-year period	0.81
Correlation (5Y) Calculated over the trailing 5-year period	0.84
Correlation (10Y) Calculated over the trailing 10-year period	0.80
Correlation (All Time) Calculated using the full available price history since Aug 1, 2001	0.86

The correlation between IWP and IWS has been stable across timeframes, ranging from 0.78 to 0.86 - a consistent structural relationship.

IWP vs. IWS - Sectors Allocation Comparison

Sectors	IWP	IWS
Industrials	25.0%	16.2%
Technology	22.3%	18.7%
Consumer Cyclical	19.9%	8.5%
Healthcare	12.8%	7.6%
Financial Services	6.4%	13.7%
Energy	3.9%	7.4%
Communication Services	3.0%	3.1%
Utilities	2.5%	6.6%
Consumer Defensive	1.9%	4.7%
Real Estate	1.4%	8.3%
Basic Materials	0.4%	5.3%

Return for Risk

IWP vs. IWS — Risk / Return Rank

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

IWP

IWP Risk / Return Rank: 13
IWP Sharpe Ratio Rank: 13
IWP Sortino Ratio Rank: 13
IWP Omega Ratio Rank: 12
IWP Calmar Ratio Rank: 13
IWP Martin Ratio Rank: 14

IWS

IWS Risk / Return Rank: 72
IWS Sharpe Ratio Rank: 69
IWS Sortino Ratio Rank: 71
IWS Omega Ratio Rank: 65
IWS Calmar Ratio Rank: 78
IWS Martin Ratio Rank: 78

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.

IWP vs. IWS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell Mid-Cap Growth ETF (IWP) and iShares Russell Mid-Cap Value ETF (IWS). 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.

	IWP	IWS	Difference
Sharpe ratio: Return per unit of total volatility	0.36	2.17	-1.81
Sortino ratio: Return per unit of downside risk	0.62	3.07	-2.45
Omega ratio: Gain probability vs. loss probability	1.07	1.38	-0.31
Calmar ratio: Return relative to maximum drawdown	0.41	3.90	-3.48
Martin ratio: Return relative to average drawdown	1.19	14.62	-13.43

IWP vs. IWS - Sharpe Ratio Comparison

The current IWP Sharpe Ratio is 0.36, which is lower than the IWS Sharpe Ratio of 2.17. The chart below compares the historical Sharpe Ratios of IWP and IWS, 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

IWP vs. IWS - Drawdown Comparison

The maximum IWP drawdown since its inception was -56.92%, smaller than the maximum IWS drawdown of -62.40%. Use the drawdown chart below to compare losses from any high point for IWP and IWS.

Drawdown Indicators

	IWP	IWS	Difference
Max Drawdown Largest peak-to-trough decline	-56.92%	-62.40%	+5.48%
Max Drawdown (1Y) Largest decline over 1 year	-14.79%	-7.53%	-7.26%
Max Drawdown (3Y) Largest decline over 3 years	-25.20%	-20.57%	-4.63%
Max Drawdown (5Y) Largest decline over 5 years	-38.62%	-21.23%	-17.39%
Max Drawdown (10Y) Largest decline over 10 years	-38.62%	-43.83%	+5.21%
Current Drawdown Current decline from peak	-2.16%	-0.16%	-2.00%
Average Drawdown Average peak-to-trough decline	-9.67%	-8.00%	-1.67%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.11%	2.00%	+3.11%

Volatility

IWP vs. IWS - Volatility Comparison

iShares Russell Mid-Cap Growth ETF (IWP) has a higher volatility of 5.63% compared to iShares Russell Mid-Cap Value ETF (IWS) at 4.18%. This indicates that IWP's price experiences larger fluctuations and is considered to be riskier than IWS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IWP	IWS	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.63%	4.18%	+1.45%
Volatility (6M) Calculated over the trailing 6-month period	13.32%	10.04%	+3.28%
Volatility (1Y) Calculated over the trailing 1-year period	17.05%	13.55%	+3.50%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.39%	17.32%	+5.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.73%	19.39%	+2.34%

IWP vs. IWS - Expense Ratio Comparison

Both IWP and IWS have an expense ratio of 0.23%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

IWP vs. IWS - Dividend Comparison

IWP's dividend yield for the trailing twelve months is around 0.35%, less than IWS's 1.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IWP iShares Russell Mid-Cap Growth ETF	0.35%	0.37%	0.40%	0.54%	0.77%	0.30%	0.38%	0.59%	1.02%	0.78%	1.16%	0.98%
IWS iShares Russell Mid-Cap Value ETF	1.33%	1.53%	1.50%	1.76%	1.93%	1.39%	1.87%	1.97%	2.53%	1.96%	2.10%	2.14%

Frequently Asked Questions

Can I hold both IWP and IWS in my portfolio?

IWP and IWS have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IWP or IWS?

IWP has higher volatility (5.63%) compared to IWS (4.18%). In terms of maximum drawdown, IWP dropped -56.92% vs IWS's -62.40%.

Which ETF is better, IWP or IWS?

On 10-year performance, IWP leads with 12.76% vs 10.68% for IWS. Both ETFs have the same 0.23% expense ratio. On volatility, IWS has been the lower-risk option at 4.18%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IWP or IWS?

Over the 10-year period, IWP has performed better with a 12.76% return vs 10.68%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IWP or IWS?

IWP and IWS have the same expense ratio: 0.23% per year.

Which ETF pays a higher dividend yield, IWP or IWS?

IWS has the higher dividend yield at 1.33%, compared with 0.35% for IWP.

What is the main difference between IWP and IWS?

IWP is categorized as Mid Cap Growth Equities, while IWS is Mid Cap Value Equities. IWP tracks Russell Midcap Growth Index, while IWS tracks Russell Midcap Value Index.

Which has better risk-adjusted returns?

IWS currently has the higher Sharpe Ratio (2.17 vs 0.36), 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.