
The graph above, taken from my original research, shows that a long/cash strategy returns 19 times the DJIA return since 1897, whereas a long/short strategy returns 121 times the DJIA return over the same period. This also beats other well known Halloween based strategies as well. Full details of teh strategy and results are here.
Now that we are in October and stock markets are looking increasingly uncertain, it is worth noting that 31 October 2013 is the next buy date for this strategy.