QCOM this POS rallied above 31 but was knocked down again as everyone and their distant relative are shorting QCOM at rallies. I would wait for any longer term short on QCOM simply because its become just a pinball stock for shorting rallies and gap down recoveries into spike highs. If QCOM does close below 30, I would consider holding a short overnight. If you held one yesterday you would have had that nice crap today, but it moves like "mercury" and has lost any modicum of positive investor sentiment.
QCOM is as annoying as those pop-up adds you see on websites, that you wish you had a program to annihilate them. (there is a program but it won't annihilate QCOM, unfortunately)