Van Tharp:
Have you played around with any other significant ideas in terms of position sizing besides market’s money? If so, what are they?
If you could give me ten rules to consider with respect to position sizing what would they be?
Ed Seykota:
“Playing around” with “when market money becomes your money” seems to be an exercise in math-turbation.
I don’t know what you mean by playing around with ideas. I feel you either think things through or you don’t.
Ten rules for position sizing:
1. Bet high enough to make meaningful profits when you win.
2. Bet low enough so you are ok financially and psychologically when you lose.
3. If (1) and (2) don’t overlap, don’t trade.
4. Don’t go adding a bunch of rules that don’t work, just so you have ten rules.