Friday the 13th

Discussion in 'Trading' started by dividend, Jan 13, 2006.

  1. Statistically the 13th falls on a Friday more often than any other day of the week. Im not sure how this “special/unlucky” day works out for Gann/Elliot or other wave phenomena people (maybe they can comment…) but I think it is worth noting that for the year 2006 -- Friday the 13 is in January, and especially October. In fact the only other time a Friday the 13th occurance is in October is in 2017, 2023, and 2028. I’m not really a superstitious person but it doesn’t necessarily matter what I think when it comes to market action :)…

    (The below is from Wikipedia)
    Because the Gregorian Calendar 400-year cycle has a whole number of weeks, it is not possible for exactly 1 in 7 months to have a Friday the 13th. In fact, the 13th is more likely to be a Friday than any other day of the week.

    Over any given 400-year cycle the 13th day of the month occurs 4800 times. The distribution of 13th day of the month is as follows:
    Monday ( 685 or 14.27% ),
    Tuesday ( 685 or 14.27% ),
    Wednesday ( 687 or 14.31% ),
    Thursday ( 684 or 14.25% ),
    Friday ( 688 or 14.34% ),
    Saturday ( 684 or 14.25% ),
    Sunday ( 687 or 14.31% ).

    This means the 13th day of the month is slightly more likely to occur on a Friday.