It is Interesting to Speculate, from Victor Niederhoffer
It is interesting to speculate whether there is a seasonal tendency to go down on the due date for the service and whether there is a corresponding seasonal for the subsequent days. One noted a revulsion in the air on those days in the past. One notes 3 April 15 and 4 April 16 literally that were down and a not insubstantial move the next day with 7 of 7 up a not insubstantial amount.