IWM vs. IJR: Two Small-Cap ETFs That Look Very Different

Small caps person enjoyed a comeback successful 2026. Granted, immoderate of the volatility we've seen successful March has made it a spot of a chaotic ride, but tiny caps are inactive outperforming ample caps by astir 4% for the twelvemonth truthful acold (as of March 10).

Given however agelong tiny caps person underperformed the S&P 500 (SNPINDEX: ^GSPC), it's tenable to deliberation that they mightiness yet beryllium owed for an extended run. An improved net outlook positive charismatic valuations supply a bully setup arsenic agelong arsenic the existent economical enlargement doesn't get derailed.

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Of much than 100 exchange-traded funds (ETFs) successful this category, the bulk person the words "small cap" successful them. There's the Vanguard Small Cap ETF, the Schwab U.S. Small Cap ETF, and the Dimensional U.S. Small Cap ETF. It'd beryllium casual to deliberation that based connected their naming conventions they're precise akin and truthful interchangeable. That whitethorn beryllium true, but successful galore cases it isn't.

There are 2 heavyweights successful this category: the iShares Russell 2000 ETF (NYSEMKT: IWM) and the iShares Core S&P Small Cap ETF (NYSEMKT: IJR). This is simply a bully illustration of wherefore it's truthful important to look past conscionable the sanction to truly recognize what you're buying. When it comes to these 2 well-known small-cap ETFs, you're owning 2 precise antithetic portfolios.

The large quality betwixt these 2 ETFs is successful the scale that they track.

As the sanction suggests, the iShares Russell 2000 ETF tracks the Russell 2000 index. It doesn't bash a full batch of targeting. It simply includes the 2,000 biggest stocks aft the Russell 1000 Large Cap index.

The iShares Core S&P Small Cap ETF tracks the S&P 600 index. It's fundamentally the 600 stocks aft the S&P 500 and S&P 400 Mid Cap indexes person been filled out.

So you person a large quality betwixt however galore stocks are successful the respective indexes and the size of those companies close disconnected the bat. But the distinctions spell acold beyond that.

If you simply privation to ain the full small-cap beingness and everything that comes with it, the iShares Russell 2000 ETF is astir apt for you.

Outside of a fewer basal liquidity and tradability screens, it fundamentally conscionable takes the full handbasket of 2,000 stocks and puts it successful the index. The biggest reddish emblem that comes from taking this attack is that you get a batch of junk with the good. I've noted respective times earlier that astir 40% of Russell 2000 components are presently unprofitable.