The Complete Guide to Rebalancing Strategies

Rebalancing is the process of realigning a portfolio's asset weights back to their target allocations. It helps manage risk and improve long-term returns by maintaining your intended investment strategy.

1. Why Rebalancing Is Necessary

Over time, differences in returns across asset classes cause your portfolio weightings to drift from their original targets. Rebalancing keeps your risk exposure at the intended level and automatically enforces a "sell high, buy low" discipline.

2. Rebalancing Frequency

1. Periodic rebalancing: monthly, quarterly, semi-annually, or annually
2. Threshold-based rebalancing: triggered when an allocation drifts more than 5–10% from its target
3. Hybrid approach: review on a regular schedule but only rebalance when a threshold is breached

3. Rebalancing Methods

1. Sell and buy: sell overweight assets and use the proceeds to buy underweight ones
2. New contributions: direct new cash into underweight assets only, without selling anything
3. Dividend reinvestment: reinvest dividends into underweight assets to nudge the portfolio back toward target

4. Tax Considerations

In taxable accounts, selling appreciated assets during rebalancing can trigger capital gains taxes. Using tax-advantaged accounts such as a pension account or IRA allows you to rebalance freely without incurring immediate tax liability.