Hi Daisy...
In Norman Fosback's classic, STOCK MARKET LOGIC, seasonality is determined to be favorable at month-end and pre-holiday. Could be all those 401ks, 403bs, IRAs etc that are deposited at the end and beginning of each month. In the '80s, I used seasonality in conjunction with AIM as a strategy. I had a 403b and any cash in AIM was used for the month-end seasonality. As I remember, it increased the overall gain by about 14% over a two year period. I discontinued the strategy after mutual funds began to limit the number of exchanges made during a specified time period. If you were able to use ETFs today in your retirement account, then it would seem feasible again.
Best Regards,
Jon
