AIRL is passively managed, providing targeted exposure to the largest companies, by market capitalization, in the airline industry. In order to be considered for inclusion, a company must generate at least 50% of its revenue from the industry, define by RIBCS. All eligible securities are ranked and weighted by their market capitalization, selecting the top 30 names for inclusion in the index. The index is reconstituted and rebalanced on a quarterly bases in February, May, August, and November. Additionally, the fund may lend securities representing up to one-third of its total assets.