Teddy Covers Arena doesn't even move CRIS anymore?

Teddy Covers Arena doesn't even move CRIS anymore? Why do these plays not have more market influence? CRIS doesn't even move at release. My understanding is that these are winning plays. Considering a nickle bet will explode the Arena market I am curious what is up here.

In poker it's thinking what your opponent is thinking you're thinking. Perhaps the book considers these releases to be head fakes.