The iShares Russell 1000 ETF (IWB) and the iShares Russell Mid-Cap ETF (IWR) are both among the Top 100 ETFs. IWB is a iShares Large Blend fund and IWR is a iShares Mid-Cap Blend fund. So, what’s the difference between IWB and IWR? And which fund is better?
The expense ratio of IWB is 0.04 percentage points lower than IWR’s (0.15% vs. 0.19%). IWB also has a higher exposure to the technology sector and a lower standard deviation. Overall, IWB has provided higher returns than IWR over the past ten years.
In this article, we’ll compare IWB vs. IWR. We’ll look at annual returns and fund composition, as well as at their portfolio growth and holdings. Moreover, I’ll also discuss IWB’s and IWR’s risk metrics, industry exposure, and performance and examine how these affect their overall returns.
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Summary
| IWB | IWR | |
| Name | iShares Russell 1000 ETF | iShares Russell Mid-Cap ETF |
| Category | Large Blend | Mid-Cap Blend |
| Issuer | iShares | iShares |
| AUM | 30.54B | 29.84B |
| Avg. Return | 14.64% | 14.15% |
| Div. Yield | 1.14% | 0.99% |
| Expense Ratio | 0.15% | 0.19% |
The iShares Russell 1000 ETF (IWB) is a Large Blend fund that is issued by iShares. It currently has 30.54B total assets under management and has yielded an average annual return of 14.64% over the past 10 years. The fund has a dividend yield of 1.14% with an expense ratio of 0.15%.
The iShares Russell Mid-Cap ETF (IWR) is a Mid-Cap Blend fund that is issued by iShares. It currently has 29.84B total assets under management and has yielded an average annual return of 14.15% over the past 10 years. The fund has a dividend yield of 0.99% with an expense ratio of 0.19%.
IWB’s dividend yield is 0.15% higher than that of IWR (1.14% vs. 0.99%). Also, IWB yielded on average 0.48% more per year over the past decade (14.64% vs. 14.15%). The expense ratio of IWB is 0.04 percentage points lower than IWR’s (0.15% vs. 0.19%).
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Fund Composition
Industry Exposure
| IWB | IWR | |
| Technology | 25.33% | 19.67% |
| Industrials | 8.88% | 14.54% |
| Energy | 2.44% | 3.48% |
| Communication Services | 10.83% | 4.64% |
| Utilities | 2.36% | 4.46% |
| Healthcare | 13.35% | 11.76% |
| Consumer Defensive | 5.97% | 3.82% |
| Real Estate | 3.34% | 8.31% |
| Financial Services | 13.64% | 11.64% |
| Consumer Cyclical | 11.85% | 13.59% |
| Basic Materials | 2.02% | 4.1% |
The iShares Russell 1000 ETF (IWB) has the most exposure to the Technology sector at 25.33%. This is followed by Financial Services and Healthcare at 13.64% and 13.35% respectively. Utilities (2.36%), Energy (2.44%), and Real Estate (3.34%) only make up 8.14% of the fund’s total assets.
IWB’s mid-section with moderate exposure is comprised of Consumer Defensive, Industrials, Communication Services, Consumer Cyclical, and Healthcare stocks at 5.97%, 8.88%, 10.83%, 11.85%, and 13.35%.
The iShares Russell Mid-Cap ETF (IWR) has the most exposure to the Technology sector at 19.67%. This is followed by Industrials and Consumer Cyclical at 14.54% and 13.59% respectively. Consumer Defensive (3.82%), Basic Materials (4.1%), and Utilities (4.46%) only make up 12.38% of the fund’s total assets.
IWR’s mid-section with moderate exposure is comprised of Communication Services, Real Estate, Financial Services, Healthcare, and Consumer Cyclical stocks at 4.64%, 8.31%, 11.64%, 11.76%, and 13.59%.
IWB is 5.66% more exposed to the Technology sector than IWR (25.33% vs 19.67%). IWB’s exposure to Financial Services and Healthcare stocks is 2.00% higher and 1.59% higher respectively (13.64% vs. 11.64% and 13.35% vs. 11.76%). In total, Utilities, Energy, and Real Estate also make up 8.11% less of the fund’s holdings compared to IWR (8.14% vs. 16.25%).
Holdings
| IWB Holdings | Weight |
| Apple Inc | 5.45% |
| Microsoft Corp | 5.11% |
| Amazon.com Inc | 3.43% |
| Facebook Inc Class A | 2.03% |
| Alphabet Inc Class A | 1.93% |
| Alphabet Inc Class C | 1.82% |
| Tesla Inc | 1.27% |
| Berkshire Hathaway Inc Class B | 1.24% |
| NVIDIA Corp | 1.11% |
| JPMorgan Chase & Co | 1.09% |
IWB’s Top Holdings are Apple Inc, Microsoft Corp, Amazon.com Inc, Facebook Inc Class A, and Alphabet Inc Class A at 5.45%, 5.11%, 3.43%, 2.03%, and 1.93%.
Alphabet Inc Class C (1.82%), Tesla Inc (1.27%), and Berkshire Hathaway Inc Class B (1.24%) have a slightly smaller but still significant weight. NVIDIA Corp and JPMorgan Chase & Co are also represented in the IWB’s holdings at 1.11% and 1.09%.
| IWR Holdings | Weight |
| IDEXX Laboratories Inc | 0.51% |
| DocuSign Inc | 0.51% |
| Twitter Inc | 0.48% |
| Chipotle Mexican Grill Inc | 0.47% |
| Roku Inc Class A | 0.44% |
| Marvell Technology Inc | 0.44% |
| DexCom Inc | 0.44% |
| Trane Technologies PLC | 0.43% |
| MSCI Inc | 0.43% |
| Carrier Global Corp Ordinary Shares | 0.43% |
IWR’s Top Holdings are IDEXX Laboratories Inc, DocuSign Inc, Twitter Inc, Chipotle Mexican Grill Inc, and Roku Inc Class A at 0.51%, 0.51%, 0.48%, 0.47%, and 0.44%.
Marvell Technology Inc (0.44%), DexCom Inc (0.44%), and Trane Technologies PLC (0.43%) have a slightly smaller but still significant weight. MSCI Inc and Carrier Global Corp Ordinary Shares are also represented in the IWR’s holdings at 0.43% and 0.43%.
Risk Analysis
| IWB | IWR | |
| Mean Return | 1.27 | 1.17 |
| R-squared | 99.73 | 91.52 |
| Std. Deviation | 13.87 | 15.66 |
| Alpha | -0.38 | -2.8 |
| Beta | 1.02 | 1.11 |
| Sharpe Ratio | 1.05 | 0.86 |
| Treynor Ratio | 14.31 | 11.72 |
The iShares Russell 1000 ETF (IWB) has a R-squared of 99.73 with a Treynor Ratio of 14.31 and a Standard Deviation of 13.87. Its Alpha is -0.38 while IWB’s Sharpe Ratio is 1.05. Furthermore, the fund has a Beta of 1.02 and a Mean Return of 1.27.
The iShares Russell Mid-Cap ETF (IWR) has a Standard Deviation of 15.66 with a Mean Return of 1.17 and a Alpha of -2.8. Its Treynor Ratio is 11.72 while IWR’s Sharpe Ratio is 0.86. Furthermore, the fund has a Beta of 1.11 and a R-squared of 91.52.
IWB’s Mean Return is 0.10 points higher than that of IWR and its R-squared is 8.21 points higher. With a Standard Deviation of 13.87, IWB is slightly less volatile than IWR. The Alpha and Beta of IWB are 2.42 points higher and 0.09 points lower than IWR’s Alpha and Beta.
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Performance
Annual Returns
| Year | IWB | IWR |
| 2020 | 20.8% | 16.91% |
| 2019 | 31.26% | 30.31% |
| 2018 | -4.91% | -9.13% |
| 2017 | 21.53% | 18.32% |
| 2016 | 11.91% | 13.58% |
| 2015 | 0.82% | -2.57% |
| 2014 | 13.08% | 13.03% |
| 2013 | 32.93% | 34.5% |
| 2012 | 16.27% | 17.13% |
| 2011 | 1.36% | -1.67% |
| 2010 | 15.94% | 25.25% |
IWB had its best year in 2013 with an annual return of 32.93%. IWB’s worst year over the past decade yielded -4.91% and occurred in 2018. In most years the iShares Russell 1000 ETF provided moderate returns such as in 2014, 2010, and 2012 where annual returns amounted to 13.08%, 15.94%, and 16.27% respectively.
The year 2013 was the strongest year for IWR, returning 34.5% on an annual basis. The poorest year for IWR in the last ten years was 2018, with a yield of -9.13%. Most years the iShares Russell Mid-Cap ETF has given investors modest returns, such as in 2016, 2020, and 2012, when gains were 13.58%, 16.91%, and 17.13% respectively.
Portfolio Growth
| Fund | Initial Balance | Final Balance | CAGR |
| IWB | $10,000 | $42,462 | 14.64% |
| IWR | $10,000 | $39,751 | 14.15% |
A $10,000 investment in IWB would have resulted in a final balance of $42,462. This is a profit of $32,462 over 11 years and amounts to a compound annual growth rate (CAGR) of 14.64%.
With a $10,000 investment in IWR, the end total would have been $39,751. This equates to a $29,751 profit over 11 years and a compound annual growth rate (CAGR) of 14.15%.
IWB’s CAGR is 0.48 percentage points higher than that of IWR and as a result, would have yielded $2,711 more on a $10,000 investment. Thus, IWB outperformed IWR by 0.48% annually.
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