of course is the 20, i have added the 25 to illustrate a point. people have a tendency to sell when the 20 is pierced and not wait until the day ends. What happens is the 25 saves as the back up, and after they get shaken out it rebounds and closes the day over the 20 in good shape. I usually cover around the 25, go long if it looks like it is going to hold, but if it loses the 25 its a short probably to the lower BB at these levels. (JMHO)