Low volume has consistently preceded big jumps in SP with CTIX. Look at the one year chart and you'll see that prior to every big jump there was a short period of extremely low volume. Obviously that could be well timed PRs or just the standard drift of interest and SP between announcements. I don't think there is anything to be learned here but what I find interesting is that the low volume appears to have come much quicker than in the past. Perhaps these stronger hands will give us a firmer floor here around 1.80 while we wait for news as opposed to dropping back to 1.50-1.60 as we did in the lag prior to ASCO. Just thinking out loud.