JETS invests in all-cap companies of both US and international passenger airline industry including aircraft manufacturers and airport companies. The index utilizes a tiered weighting scheme driven mostly by market cap as well as passenger load. As a result, the portfolio puts about 70% of its weight in US large-cap passenger airlines (at quarterly rebalance), with the top four companies receiving 10% each. The next five largest US or Canadian airlines each receive a 4% weighting. The remaining airline companies, that meet minimum trading and liquidity requirements, are scored based on fundamental factors. Scores are driven by cash flow return on capital, gross margin, sales growth and sales yield. The top five US or Canadian companies based on this composite score receive 3% weight and each of the 25 non-US companies scoring highest receive 1% weight. In September 2020, the strategy and weighting of the underlying index was modified without significant changes to exposure.
