Every time the Nifty 50 crosses a new milestone, a familiar question surfaces among investors: "Is it too late to start a SIP?" This question has been asked at Nifty 10,000, 15,000, 18,000, 20,000, and now at current elevated levels. The answer from decades of market data is unambiguous: the best time to start a SIP is today, regardless of where the index stands.
Why Markets Are Always at or Near All-Time Highs
Here is a fact that surprises most investors: over any 15-year period, the stock market spends roughly 90 percent of its time within 5 percent of all-time highs. The market's natural tendency is to rise over the long term because it reflects the growing earnings of the underlying companies and the economy. If you wait for a "correction" to invest, you may be waiting while the market climbs another 20 or 30 percent higher. The dip, when it comes, may still be above where the market stands today.
An investor who started SIP only at all-time highs in the Nifty 50 over the past 20 years still earned an average XIRR of 11.8 percent. An investor who started only after 10 percent corrections earned 12.3 percent. The difference is negligible, but the second investor invested significantly less total capital by waiting.
The Cost of Waiting: Real Numbers
Consider Anita and Vikram. Anita starts a Rs 10,000 monthly SIP in January 2020 when the Nifty is near its high of 12,000. Vikram decides to wait for a correction. The COVID crash comes in March 2020, and Nifty drops to 7,500 — a 38 percent correction. Vikram starts his SIP in April 2020. By December 2025, Anita has invested Rs 72,00,000 (72 months) while Vikram has invested Rs 69,00,000 (69 months). But Anita's portfolio is actually larger because her January and February 2020 installments, though bought at higher prices, have had 3 more months of compounding, and her March 2020 installment bought at the exact bottom benefited from the sharpest recovery.
| Strategy | SIP Start Date | Total Invested (by Dec 2025) | Portfolio Value | XIRR |
|---|---|---|---|---|
| Start immediately | Jan 2020 | Rs 7.2 Lakh | Rs 13.8 Lakh approx | 14.2% |
| Wait for 10% dip | Apr 2020 | Rs 6.9 Lakh | Rs 13.4 Lakh approx | 14.5% |
| Wait for 20% dip | Apr 2020 | Rs 6.9 Lakh | Rs 13.4 Lakh approx | 14.5% |
| Keep waiting (never start) | - | Rs 0 | Rs 0 | 0% |
The Real Risk Is Not Investing
The opportunity cost of keeping money idle in a savings account earning 3 to 4 percent while waiting for a market correction is massive. Inflation at 5 to 6 percent means your purchasing power is actually declining every day you delay. A SIP at market highs with 12 percent average returns still beats a savings account by 8 percentage points annually. Over 10 years, this compounds into a substantial difference in real wealth.
- SIP eliminates the need to time the market by averaging across all market levels
- Every market high eventually becomes a future low in a growing economy
- The investor who waited for Nifty to correct from 10,000 missed the entire rally to 20,000+
- Time in the market is 6 times more important than timing the market (based on rolling return analysis)
- Start today with whatever you can afford; increase amount gradually through step-up SIP
If the Nifty is at an all-time high, congratulations — it means the economy is growing. Do not punish yourself by sitting out of a growing economy. Start your SIP today.
Far more money has been lost by investors preparing for corrections or trying to anticipate corrections than has been lost in corrections themselves. Start your SIP today — the market rewards participation, not prediction.