Rather than focusing only on fixed schedules, one should see how rebalancing is done, what prompts it, and why it plays a role in managing portfolio risk over time.
How portfolio rebalancing actually works
At its core, rebalancing means adjusting the mix of assets in a portfolio back to its intended allocation.
For example, if equities outperform and rise beyond their target share, investors trim exposure and shift money into other asset classes such as debt or cash equivalents. If equities underperform, they may increase allocation.
Shubham Gupta, CFA and Founder & CEO of Growthvine Capital, said rebalancing works best when it is driven by “portfolio drift rather than a fixed calendar.”
He explained that investors typically review allocations once or twice a year, or when exposure deviates by around 5–10% from the original mix. “The process naturally forces discipline—reducing what has run up and adding to what has lagged,” he said.
Why rebalancing matters: Control risk, not just returns
Experts say the main purpose of rebalancing is not to chase returns, but to control risk that builds silently over time.
Mona Singh, Founder of iAngels Wealth, said markets tend to distort allocations over time, which can unintentionally change a portfolio’s risk profile. Regular reviews, she said, help restore alignment with long-term goals and risk appetite.
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Parth Dalal, Vice President at Aikyam Wealth Private Limited, said this becomes especially important in volatile markets. He noted that strong rallies in equities can quietly increase risk exposure beyond what investors are comfortable with.
“Portfolios should be regularly reviewed at least annually, but action is taken when allocations deviate by around 5%. Factors such as elevated valuations in certain equity segments, changes in interest rates affecting debt returns, and shifts in an investor’s financial goals or liquidity needs are key considerations. The objective is to prevent unintended risk build-up, particularly in equity-heavy portfolios driven by sustained SIP inflows,” he said.
Sharad Chand, Business Head – Wealth Management at Alankit Limited, added that rebalancing also helps reduce “volatility drag” by ensuring portfolios do not remain concentrated in overheated segments.
“Due to market reversion, buying an underperforming asset during volatility is bound to give good returns in the future. Through rebalancing by reducing equity during volatility you are reducing Volatility drag, which is minimising your losses by reducing the percentage to gain required, which leads to a smoother and higher- long term growth,” he said.
The “why now” factor: Markets, cycles, and life stages
Rebalancing is increasingly driven by two broad triggers:
Market cycle shifts
Mohit Basant Bagdi, Founding Member and Head of Investment Research at MIRA Money, said macro conditions play a key role. Rising inflation, high interest rates, and stretched valuations typically call for reducing risk, while cheaper valuations and liquidity conditions may justify higher equity exposure.
Life cycle changes
Bagdi added that investors also need to rebalance as they age or their financial situation evolves. He recommends at least an annual review to ensure portfolios match changing risk capacity.
Seema Chaturvedi, Founder and Managing Partner at AWE Funds, said rebalancing should respond to shifts in “market structure, risk exposure, and underlying fundamentals” rather than fixed schedules alone.
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The types of rebalancing investors actually useExperts broadly describe three practical approaches used in real portfolios:Calendar-based rebalancing
This involves reviewing portfolios at fixed intervals such as quarterly, half-yearly, or annually.
Mona Singh said a 6–12 month review cycle is commonly used to restore allocation discipline without overtrading.
Threshold-based rebalancing
This is triggered when asset allocation drifts beyond a defined band, often 5–10%.
Shubham Gupta said this method is more responsive to market movement and avoids unnecessary transactions.
Event-based rebalancing
This happens when macro conditions or personal situations change.
Bagdi said this includes shifts in inflation, interest rates, earnings cycles, or major life events that require a reassessment of risk.
The tax question: Why rebalancing is not just a market decision
Rebalancing often involves selling assets, which can trigger capital gains tax.
Mona Singh said investors often manage this by using fresh inflows such as SIPs, bonuses, or dividends instead of selling existing holdings. She also highlighted the use of tax-efficient structures to reduce friction.
Shubham Gupta pointed out that investors can use the ₹1.25 lakh long-term capital gains exemption annually to gradually rebalance portfolios.
Parth Dalal noted that post-2023 taxation changes in debt mutual funds have made tax planning even more important in rebalancing decisions.
The key trade-off: Discipline vs timing risk
While rebalancing improves discipline, experts caution that timing it incorrectly can hurt performance.
Bagdi warned that moving too aggressively into safer assets during downturns can lead to missed recoveries if markets rebound quickly.
Gupta added that timing remains the biggest challenge, and mistimed shifts can result in both reduced downside protection and missed upside participation.
The bottom line
Across strategies and market conditions, experts agree on one point: portfolio rebalancing is less about prediction and more about discipline.
It works by forcing investors to do something counterintuitive—sell what has done well and buy what has lagged—helping maintain risk control, reduce emotional decisions, and keep long-term goals on track.
