This ETF primarily commits at least 80% of its total holdings to components of its benchmark index, or to other assets that share highly similar economic features. Up to 20% of the fund's capital can be deployed into various financial instruments such as futures, options, and swap agreements, alongside cash and highly liquid assets. Furthermore, the fund manager (BFA) may invest in securities not included in the index if they believe it will help the fund accurately track the index's performance.