Last two days up 11% and 6% respectively. Both days showed average volume: 24M on Monday and 19M today(10-day average daily volume is 23M, so it does not seem like the shorts have been covering, or at least not a lot of panicky volume. Short volume is around 50% of float. I would think we would have to see 35M plus in volume per day to indicate any substantial short covering, so these increases may just be bargain hunters after the target price doubling upgrade by CitiGroup to $11/share. I'm holding my calls until I see some significant volume over 35M. What do others think here? Thoughts?