I will take a stab at this.
It seems to me that the freqency of trading should be more dependent on what kind of portfolio one maintains than on the time frame involved.
My own portfolio is a very conservative, boring mix of diversified funds and high yield funds. Occasionally I will buy a stock or a sector ETF, but not often. As a result, I take whatever sells or buys the market and my funds offer, whenever they are offered.....which isn't very often. I doubt I will ever see sequential buys within a 30 day period. Heaven help us if I ever do see sequential buys within a short time period, because that would probably mean the entire market was having a major melt down. It wouldn't be pretty.
However, if I was AIMing some volatile individual stocks then I would probably use Tom's rules of having 30 days between sequential buys.
Ray
