IWM vs IJR: Head-to-Head Comparison

Side-by-Side Comparison

Key Differences Between IWM and IJR

IWM (iShares Russell 2000 ETF) is a u.s. small-cap blend fund managed by BlackRock. IWM tracks the Russell 2000 index, which includes 2,000 small-cap U.S. companies. Small-cap stocks are younger, faster-growing companies that have historically delivered higher returns than large-caps over very long time periods, but with significantly more volatility. Beginners should view IWM as a way to add growth potential through smaller companies that could become the large-caps of tomorrow.

IJR (iShares Core S&P Small-Cap ETF) is a us small-cap fund managed by BlackRock. IJR tracks the S&P SmallCap 600 Index, which screens for profitability before including companies, making it a higher-quality small-cap option. Unlike broader small-cap indexes, the S&P 600 requires positive earnings, filtering out unprofitable speculative companies. This quality screen has historically helped IJR deliver better risk-adjusted returns than many competing small-cap funds.

The most notable differences are in fees (0.19% vs 0.06%), number of holdings (1,955 vs 600), and 5-year returns (8.20% vs 9.50%).

Holdings Overlap Analysis

IWM and IJR share only 5% of their top holdings. These funds are quite different, making them complementary choices if you want broader market coverage.

Cost Comparison Over Time

If you invest $10,000 and hold for 20 years (assuming 8% annual returns):

Over 20 years, the fee difference amounts to $1,098 on a $10,000 investment. IJR saves you more in fees over time.

Which One Should a Beginner Choose?

Choose IWM if: You want investors with a long time horizon who want small-cap growth exposure, those looking to diversify beyond large-cap stocks in their portfolio, investors who believe small-cap stocks are poised for a rebound relative to large-caps. It's managed by BlackRock with an expense ratio of 0.19%.

Choose IJR if: You want quality-conscious investors wanting small-cap exposure without the junkiest stocks, core small-cap allocation in a diversified portfolio, investors who prefer index methodology with built-in quality screening. It's managed by BlackRock with an expense ratio of 0.06%.

Can You Own Both IWM and IJR?

Absolutely! With only 5% overlap, IWM and IJR complement each other well. A simple portfolio might allocate 60% to one and 40% to the other, or you could pair them with a bond ETF like BND for a complete three-fund portfolio.

Frequently Asked Questions