That's a good question. We KNOW what the trend is, but I am not sure there is any REAL WAY to quantify that.
I have said I am LONG through NTEK's 2nd Annual SHM... July of 2014 at the VERY LEAST as long as they continue to maintain corporate transparency, are shareholder-friendly & keed doing EXACTLY what they have BEEN DOING.
And, they just keep proving those LONGS wise for HOLDING, ADDING & ACCUMULATING imho...but, as for how you quanify how tightly the float is held? IDK.
We KNOW IT has been SHRINKING since NTEK has retired over 300mm shares since January!! WE KNOW THAT!!!