Key Takeaways
- SIPs during market crashes buy more units at lower prices. This is rupee cost averaging working for you
- Morningstar's Mind the Gap study found Indian mutual fund investors underperformed their own funds by 2.5% annually over 5 years due to poor timing decisions
- The urge to pause is behavioral, not rational. AMFI data shows SIP stoppage ratios spike above 100% during corrections — in January 2025, more SIPs were discontinued than started
- If you have surplus cash during a crash, consider increasing your SIP, not pausing it
Why Your Brain Tells You to Stop
When the Nifty drops 15% in a month, your portfolio shows red, and financial news runs apocalyptic headlines, your brain screams “stop the bleeding.” This is loss aversion — what Kahneman and Tversky identified in their 1979 Prospect Theory research: the pain of losing money is psychologically about twice as powerful as the pleasure of gaining the same amount. It’s the single biggest destroyer of long-term wealth in India.
Here’s what’s actually happening: your SIP is now buying units at a 15% discount. The same ₹10,000 that bought 100 units last month now buys 115 units. Over the next recovery (and every correction in Indian markets has been followed by a recovery), those extra units compound.
AMFI data from January 2025 shows the SIP stoppage ratio hit 109% — 61.33 lakh SIPs discontinued against only 56.19 lakh new registrations. Once stopped, most investors wait for the "right time," which never feels right, and miss years of compounding. The pause becomes permanent.
The Math: Pausing vs. Continuing
Let’s look at real numbers. Two investors start a ₹10,000/month SIP in a Nifty 50 index fund in January 2008. Investor A continues through every correction. Investor B pauses for 6 months during each major dip — the 2008 crash (Nifty fell 65%), the 2015-16 correction (down 25%), the 2018 IL&FS crisis, and the 2020 COVID crash (down 40%), per NSE historical data.
Same monthly amount. Same fund. The only difference: Investor A kept investing when it felt terrible. That “terrible” feeling was actually the best buying opportunity.
The Nifty 50 has delivered a 35-year CAGR of 13.36% (NSE historical data, 1991-2026), with an average 15-year return of 12.2% (PrimeInvestor analysis). Morningstar's Mind the Gap India study found Indian mutual fund investors gave up 2.54% annually over 5 years and a staggering 5.79% annually over 10 years through poor timing — pausing in dips and chasing in rallies. That gap compounds into lakhs over a decade.
How Rupee Cost Averaging Actually Works
Rupee cost averaging isn’t a strategy you choose. It’s a mathematical consequence of investing a fixed amount regularly.
| Market Condition | NAV | ₹10,000 Buys | Units |
|---|---|---|---|
| Normal market | ₹100 | ₹10,000 | 100 |
| 20% correction | ₹80 | ₹10,000 | 125 |
| 40% crash | ₹60 | ₹10,000 | 167 |
| Recovery to ₹100 | ₹100 | ₹10,000 | 100 |
During the crash, you accumulated 167 units instead of 100. When the market recovers to the same level, those extra 67 units represent pure additional wealth, created by the correction itself.
The correction wasn’t a threat to your SIP. It was fuel for it.
What You Should Actually Do During a Market Crash
- Keep your existing SIPs running. Don’t log into your mutual fund app to check daily. Set it and forget it.
- If you have surplus cash, increase your SIP temporarily. A 20% correction is a 20% sale on future wealth.
- Revisit your asset allocation, not your SIP. If the crash is making you anxious, your equity allocation might be too high for your risk tolerance. Adjust allocation, don’t stop investing.
- Remember the base rate. Per NSE data going back to 1991, every single correction in Indian market history has been followed by a recovery — including the 65% crash in 2008, the 40% COVID crash in 2020, and the 18% drawdown in 2022. Every one.
The best investors during corrections aren't the ones with the best analysis. They're the ones with the best systems. Automated SIPs that run regardless of market conditions. Delegation removes the emotional decision point entirely.
