Here's the CTIX volume+ 1-minute chart. See how there are many fewer of those "walking it down" 100 share trades, and how there are a few larger lots and mostly "real" buys of 1000 shares or more? We're not seeing a lot of those 1-minute bars that vary by several cents on a few hundred shares (that's a sign of walking it down)

http://bigcharts.marketwatch.com/advchart/fra...p;state=11