How Often Should You Rebalance Your Portfolio?
Most financial planners recommend rebalancing annually or when any asset class drifts more than 5 percentage points from its target. Annual rebalancing is simple and effective. More frequent rebalancing may improve risk control but increases transaction costs and potential tax consequences. Many target-date funds and robo-advisors rebalance automatically, removing the need for manual action.
What Are the Best Methods for Rebalancing?
The cleanest method is selling overweighted assets and using proceeds to buy underweighted ones, but this can trigger capital gains taxes in taxable accounts. A tax-friendlier approach is directing new contributions to underweighted assets until balance is restored. In tax-advantaged accounts like IRAs or 401(k)s, you can rebalance freely without tax consequences. Some investors use a combination of both methods.
Why Is Rebalancing Considered Forced Discipline?
Rebalancing enforces a counterintuitive but effective behavior: it forces you to sell assets that have recently performed well and buy assets that have recently underperformed. This is effectively a systematic buy-low, sell-high mechanism. It counters the emotional tendency to chase recent winners and abandon laggards. Investors who skip rebalancing often find their portfolios taking far more risk than intended after extended bull markets.
Frequently asked questions
Does rebalancing improve investment returns?
Rebalancing primarily manages risk rather than maximizing returns. In some market environments, especially volatile ones with mean-reverting assets, rebalancing adds a modest return bonus called the rebalancing premium. However, its primary purpose is ensuring your portfolio risk stays aligned with your tolerance and goals, not chasing maximum returns.
Should you rebalance during a market crash?
Yes — and it is one of the most effective times to do so. If your stocks fall and your bonds hold value, your portfolio will underweight stocks. Rebalancing means buying stocks after a crash at lower prices, which historically leads to strong returns during the recovery. This disciplined behavior is difficult emotionally but financially rewarding.