this year was, I believe 2-16-06. About a week after the funding ( see prior link ). I was wondering why there was an increase of volume. There was a jump in volume to over 300k and then on 2-15-06 to over 500k.

http://bigcharts.marketwatch.com/historical/default.asp?detect=1&symbol=edig&close_date=2%2F16%2F06&x=36&y=22