The PowerShares Aerospace & Defense (PPA) exchange traded fund (ETF) is enjoying a sky-high performance lately. It’s up 22% year-to-date.

One reason could be because Boeing recently made a lot of sales, and it’s PPA’s largest holding at 7%. Southwest Airlines ordered 25 jetliners valued at as much as $1.7 billion, according to Kansas.com. In addition, the U.S. army plans to extend its $162 billion Future Combat Systems program with Boeing, according to a Dow Jones press release.

The opinions and forecasts expressed herein are solely those of Tom Lydon, and may not actually come to pass. Information on this site should not be used or construed as an offer to sell, a solicitation of an offer to buy, or a recommendation for any product.