Waiting for perfect market dip? Not a great idea. Here's why

There's bad news for those who think they can time the market: more often than not, it doesn't work. But if there are people reading this and pooh-pooh this claim, saying this is nonsense or some kind of propaganda, let us give you some cold, hard numbers. Timing vs Consistency Let's imagine an investor who receives a Rs 1 lakh annual bonus every year over the last 20 years, and wants to invest it in the market. He follows a SIP in a Sensex index fund but has two choices for deploying his bonus. The first option is to time the market by waiting for a correction. Instead of investing immediately, he parks the Rs 1 lakh bonus in a short-duration debt fund and waits. Whenever the market falls 10 per cent from its last peak, he invests a portion of his accumulated corpus—either 10 per cent, 20 per cent, or 30 per cent—into an equity fund. The second option is to invest systematically. Instead of waiting for market dips, he spreads the Rs 1 lakh bonus evenly over 12 months (Rs 8,333 per month), regardless of market conditions. Let's see which approach delivered better results. The results: systematic investing wins Strategy Total investment value (February 27, 2025) Investing 10% of corpus on every 10% decline Rs 56.66 lakh Investing 20% of corpus on every 10% decline Rs 62.53 lakh Investing 30% of corpus on every 10% decline Rs 65.97 lakh Monthly SIP of ₹8,333 Rs 66.29 lakh Note: Tax implications are not considered when selling short-duration funds to invest in the Sensex. Additionally, interest earned on the remaining bonus left in the savings account after SIP investments is ignored. Investing systematically through monthly SIPs outperformed all variations of market timing. Even when more money was deployed during corrections, steady investing still delivered better returns. Why market timing does not work One of the biggest problems with waiting for dips is that they do not come frequently enough. In some periods, markets rallied for years without meaningful corrections. Between February 2022 and November 2024, for instance, there was no 10 per cent correction for over two and a half years. An investor waiting for a dip would have missed a 41.5 per cent rally (13.5 per cent annualised), while debt funds returned just 17.8 per cent (6.2 per cent annualised) during the same period. The table below shows how long it took for the Sensex to correct by 10 per cent over the years and how much return Sensex and debt funds gave in between. Date of 10% decline Days since last drop Sensex return in between (%) *Debt fund return in between (%) April 18, 2005 - - - October 27, 2005 192 26.7%

This article was originally published on March 06, 2025.