I found this chart when MFYS started and here is the volume and the record day.
03/16/2005 0.850 1.150 0.750 1.065 3,443,087
03/15/2005 0.745 0.775 0.6875 0.715 876,064
03/14/2005 0.8025 0.850 0.700 0.7525 2,132,252
03/11/2005 0.8125 0.825 0.775 0.7925 1,754,024
03/10/2005 0.750 0.8125 0.7375 0.800 1,998,980
03/09/2005 0.6975 0.745 0.6625 0.7375 1,398,976
03/08/2005 0.700 0.7375 0.625 0.6875 1,300,200
03/07/2005 0.750 0.8125 0.600 0.675 3,213,500
03/04/2005 0.9675 1.013 0.525 0.7125 14,351,328
03/03/2005 0.8275 0.9625 0.825 0.9625 9,317,588
03/02/2005 0.700 0.825 0.700 0.8225 6,229,948
03/01/2005 0.6175 0.9125 0.590 0.6875 3,940,180
02/28/2005 0.5225 0.650 0.5125 0.615 5,986,376
02/25/2005 0.425 0.525 0.4175 0.525 4,541,948
02/24/2005 0.445 0.4625 0.325 0.410 5,012,444
02/23/2005 0.400 0.4375 0.380 0.4375 2,348,512
02/22/2005 0.2375 0.405 0.2125 0.3775 12,753,448
No other dates up to today have matched the vol. of 03/16/2006.
