OK, it makes no sense to do any statistics on small numbers and over a short period of time because of the sample error being much larger than any effect. You also have to weigh sales against portfolio size.

I'm uploading on BigStock since August 2005 and I made an analysis from begin 2006 till now. Since my full port is on BigStock (almost no rejections) and the current # is somewhat over 1200, I figure that a sales analysis over time can smooth out part of the sample error and indicate trends (if any).

I plotted earnings per month (blue line) against estimated portfolio size (pink line), and I did a moving average smoothing on the earnings (yellow line). This is the result:



Notwithstanding the large fluctuations that are inherent to small number of sales on BigStock in general, one can see two trends. The first one till March 2008 (included) that roughly follows port size, and a breakdown after that.

There is a deep dip in Q4 of 2008, most probably reflecting the outbreak of the credit crunch, but the trend already reversed near the end of Q1/2008.

After a weak rebound in Q1/2009 (just continuing the downward trend), the trend goes down and down till now, despite portfolio increase. It's an educated guess that around that time T&D entered into the red zone and started looking for a buyer before the potential (and the price) of BigStock went too low.

The fact that SS owns the site for a few months doesn't seem to have any effect on the BigStock sales till now. Thanks for your attention.