A similar (but more useful) position sizing strategy is the Optimal F formula, described by Ralph Vince in his book Portfolio Management Formulas. But its real

A similar (but more useful) position sizing strategy is the Optimal F formula, described by Ralph Vince in his book Portfolio Management Formulas. But its real value is in showing you your 'cliff of death' curve: how close you can get to bankruptcy given your position sizing. In my opinion, position sizing is more way more important (and less understood) than market timing.