SIP for 10 years? Study shows why long-term investors almost never lose money

Systematic Investment Plans (SIPs) may look disappointing in the short term, but being patient can really turn things around. According to the ET Wealth-Crisil SIP Study 2026, the longer you stay invested, the lower are your chances of losing money. While many investors panic during market falls, the study shows that disciplined long-term SIP investing improves return consistency and reduces risk dramatically over time.

Equity mutual funds do not guarantee profits in the short run. The study found that many SIP investors who stayed invested for only two years, either earned very low returns or lost money. Around 26% of diversified equity funds failed to generate positive SIP returns over a two-year period. This highlights why short investment horizons often fail to capture the real benefits of equity investing.

The study clearly shows that the probability of loss drops sharply as SIP duration increases. A 1-year SIP carried a 22.7% chance of negative returns. However, after six years, the probability of loss fell below 2%. Most importantly, investors who continued SIPs for 10 years had virtually zero chance of losing money based on historical data from 2011 to 2026.

For many investors, earning around 10% annually from equity funds is considered a reasonable target. The study found that the probability of SIP returns crossing 10% rises above 80% after four years of investing. By the 10-year mark, nearly 99% of SIP periods delivered more than 10% returns, showing how time improves return reliability.

Investors often expect very high returns from equity markets, but long-term SIP investing focuses more on consistency than chasing quick gains. The chances of earning over 20% annual returns are actually higher in shorter SIP periods. Over longer periods, returns stabilize around 13–15%, offering more predictable wealth creation with lower volatility and reduced downside risk.

Despite the benefits, very few investors stay invested for a full decade without interruptions. Experts say market corrections, financial emergencies, and emotional reactions often cause investors to stop or switch SIPs midway. Many investors struggle more with behaviour and discipline than with returns. Staying invested consistently is often harder than choosing the right mutual fund scheme.

The 2020 Covid market crash tested investors severely. One-year SIP investors saw portfolio returns fall by over 50% during the market panic. However, investors with 7–9 years of SIP history experienced far smaller declines and many even remained in positive territory. The study shows that long investment periods cushion portfolios during major market crashes and reduce panic-driven decisions.

The study found that recent SIP investors took much longer to recover after the Covid crash. One-year SIP portfolios needed around 122 days to return to positive territory. In comparison, investors with nine-year SIP histories recovered within just two days. Longer investment duration not only protects returns but also improves investor confidence during volatile market conditions.

Not all equity fund categories behave the same way. Small-cap funds showed the highest probability of generating over 20% returns even across long SIP tenures. Mid-cap funds also performed strongly. Large-cap funds, while more stable, offered lower chances of very high returns. Investors must balance growth potential with risk tolerance before choosing SIP categories for long-term wealth creation.

The ET Wealth-Crisil SIP Study 2026 delivers one clear message: staying invested matters more than trying to predict markets. Experts broadly agree that investors should ideally continue SIPs for at least 7–10 years to experience meaningful stability and compounding benefits. Long-term investing may not always deliver spectacular returns, but it greatly improves the chances of steady wealth creation and lower losses.