Portfolio Rebalancing
The process of realigning a portfolio's asset allocation back to target weights by selling overweight assets and buying underweight assets.
FAQs
How often should I rebalance my portfolio?
Annual rebalancing is sufficient for most investors and minimizes tax events in taxable accounts. More frequent rebalancing (quarterly) slightly improves risk control but may increase taxable events. A practical approach: review annually and rebalance only if any asset class has drifted more than 5 percentage points from its target. Use tax-advantaged accounts for more frequent rebalancing to avoid taxable gains.
Does rebalancing improve returns or just control risk?
Research shows rebalancing can slightly reduce returns in strongly trending markets (you're selling the outperformer) but significantly improves risk-adjusted returns by preventing dangerous drift. The primary benefit is risk management — ensuring you don't inadvertently hold a portfolio far more aggressive than your risk tolerance dictates. The buy-low/sell-high discipline is a secondary benefit.
What is a target-date fund and does it rebalance automatically?
A target-date fund (e.g., 'Target Retirement 2050 Fund') is a all-in-one fund that automatically rebalances to its current allocation and gradually shifts toward more conservative allocations as the target year approaches. It's the simplest rebalancing solution for most investors in 401(k) accounts. The main downside is it treats all investors with the same target year identically, regardless of individual risk tolerance.
Related Terms
Asset Allocation
The strategic distribution of investments across asset classes — stocks, bonds, real estate, and cash — to balance risk and return based on goals and time horizon.
Index Fund
A passively managed investment fund that tracks a market index like the S&P 500, offering broad diversification at very low cost.
ETF
An Exchange-Traded Fund — a basket of securities that trades on a stock exchange like an individual stock, combining diversification with intraday liquidity.
Tax Loss Harvesting
An investment strategy of selling assets at a loss to offset capital gains or ordinary income, reducing current tax liability while maintaining portfolio exposure.