The only negative is that the contests are about STOCK picking
Shouldn't stock picking include short positions on an equal basis with long positions? I know very little about ETF's.
I would enter at your request for the good of the contest. Without shorts and only liking one stock that fits the .25 minimum maybe I could add 5 MSFT's and DELL's for my 6 choices? Not indicative of my real stock approach but possible I could win by default by losing less.