You may be missing one of the more fundamental reason to rebalance your portfolio at predetermined points in time to a predetermined balance. That it takes emot

You may be missing one of the more fundamental reason to rebalance your portfolio at predetermined points in time to a predetermined balance. That it takes emotion out of the equation. By rebalancing, say, every time you put money into your IRA, you're always "selling high and buying low" without the risk that you'll let emotion overturn a generally good investing strategy. While you may actually be in a position to time the market, my understanding is that empirical evidence suggests that the vast majority would be better off not trying to time the market. And that people who mechanically follow rebalancing procedures will tend to outperform those who rebalance based on some kind of intuition or market calculation.