I've taken a short trade in CLNE at $12.88. The stock has a higher level of risk from the stand point of holding it overnight, as it has had the tendency to gap some of late. However, this stock is running slap-dab right into resistance at around the $13 level as you can see below. My stop is at 13.45 which gives me about 4% for a stop-loss, which is about the max I'm willing to go.
You'll see that a lot of this stock's movement is off of Cramer's pumping of this stock and a few other favorable articles, but once that pump subsides, it should make a nice move lower.