XHE offers equal-weight exposure to US companies in the health care equipment & supplies business. While XHE's holdings encompass all cap sizes, its weighted average market cap is only a fraction of the market's, giving it a significant small-cap tilt. XHE is not for everyone--it targets an extremely narrow market. Yet, XHE provides an alternative play for healthcare investors aiming to avoid the heavy hand of big pharma and service providers that dominate the broader industry. The index is rebalanced quarterly.