iShares Russell 2000 ETF

The ticker symbol for the iShares Russell 2000 ETF is IWM, and it trades on the NYSE Arca exchange. Managed by BlackRock under the iShares brand, it is one of the most heavily traded exchange-traded funds in the world. Investors use IWM as a primary vehicle to gain exposure to the domestic small-cap equity market.

The fund is designed to track the investment results of the Russell 2000 Index, which measures the performance of approximately 2,000 small-capitalization U.S. companies. It covers roughly the smallest 1,000 to 3,000 companies in the broader Russell 3000 Index. Because it focuses on small caps, it is a key barometer for the health of domestic American growth companies.

IWM utilizes a passively managed index approach, meaning it does not rely on a portfolio manager to hand-pick winning stocks. Instead, BlackRock structures the fund to replicate the holdings and weightings of the Russell 2000 Index as closely as possible. This strategy keeps management fees low while providing broad diversification across the small-cap sector.

The ETF holds small-cap U.S. companies across a wide variety of sectors, heavily weighting healthcare, industrials, financials, and consumer discretionary firms. Unlike the S&P 500, which is dominated by massive tech giants, the Russell 2000 features smaller, more domestically focused businesses. This makes IWM an attractive option for investors looking to bet on the internal growth of the American economy.