Briefly Speaking, from Victor Niederhoffer
It is interesting to note that of the last 25 Friday the 13 ths stock market moves since 1996, (a random cutoff) 60% were up and the average move during the day was 0.4 % with a non-significant t of 1.4. I believe this is a general manifestation of the microscopic utility of cane buying as well as its macroscopic counterpart which you are all caned on.