Rebalancing

Rebalancing is the disciplined process of adjusting your Portfolio back to its target asset allocation. Over time, as different assets generate different returns, your actual allocation drifts from your intended allocation. Rebalancing corrects this drift by selling assets that have grown beyond their target weight and buying those that have fallen below.

Consider a portfolio with a target allocation of 60% equity and 40% debt. After a strong equity rally, the actual allocation might shift to 70% equity and 30% debt. The portfolio now carries more equity risk than intended. Rebalancing would involve selling some equity holdings and buying debt instruments to restore the 60/40 split.

The counterintuitive power of rebalancing is that it enforces a buy-low, sell-high discipline. You systematically trim winners (which may be overvalued) and add to laggards (which may be undervalued). This runs against human psychology — our instinct is to let winners ride and cut losers — but academic research consistently shows it improves risk-adjusted returns over long periods.

Common rebalancing approaches include calendar-based (quarterly, semi-annually, or annually), threshold-based (rebalance when any asset class drifts more than 5% from target), and a hybrid approach. For Indian investors, tax implications of rebalancing must be considered — selling equity within 12 months triggers STCG at 20%, while longer holdings face LTCG at 12.5% above INR 1.25 lakh. Using fresh SIP inflows to rebalance (directing new money to underweight assets) can minimise tax impact.

Mutual fund investors can rebalance through hybrid or balanced advantage funds that do this automatically. SEBI-registered investment advisors typically build rebalancing rules into their recommended portfolio strategies. For self-directed investors, setting calendar reminders and following the rules mechanically is key — the discipline matters more than the exact frequency.