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Market Downturn Boosts SIP Returns as Monthly Investment Buys More Units

Systematic Investment Plan investors stand to benefit from falling markets, as the same monthly contribution purchases a larger number of mutual fund units at depressed net asset values. This price advantage can substantially enhance long-term portfolio gains for disciplined investors.

LSN India · 12 September 2026

Market downturns, while unsettling for many investors, present a unique opportunity for those following systematic investment plans. When equity markets decline, the net asset values of mutual funds fall correspondingly, allowing SIP investors to acquire more units with their regular monthly contributions.

Consider an investor maintaining a Rs 25,000 monthly SIP commitment. During periods of market strength, this amount might purchase, for example, 250 units at a NAV of Rs 100. However, when markets correct and the same fund's NAV drops to Rs 80, the identical Rs 25,000 investment now purchases 312 units—62 additional units from the same outlay.

This mechanism, known as rupee cost averaging, works in favour of long-term SIP investors. By maintaining consistent monthly investments regardless of market conditions, investors automatically buy more units when prices are low and fewer when prices are elevated. Over extended investment horizons, this disciplined approach typically results in a lower average cost per unit.

Financial advisors emphasize that the benefits of this strategy materialize only for investors who remain committed to their SIP schedules through market cycles. Those who pause or withdraw their contributions during downturns forfeit the opportunity to accumulate units at discounted valuations. Market volatility, viewed through the lens of a multi-year investment strategy, thus becomes an advantage rather than a liability for patient SIP investors.