SMH is a highly concentrated fund that invests in common stocks and depositary receipts of US-listed semiconductor companies, similar to our benchmark. Midcap companies and foreign companies listed in the US can also be included. To be initially eligible, 50% of company revenues must be primarily in the production of semiconductors and semiconductor equipment. The top 50 eligible companies by market cap are then given two separate ranks based on free-float market capitalization in descending order and three-month average-daily-trading volume in descending order. Those two ranks are summed and the highest ranked 25 companies are selected. A capping scheme is applied to ensure diversification and more weight is given to the larger companies.