The National Stock Exchange (NSE) has flagged monsoon performance and El Niño risk as the biggest macroeconomic challenges for India's 2026 outlook, even as the country's equity investor base expands rapidly in size and diversity, according to its latest report.
Monsoon and El Niño Risks
The NSE report identified monsoon performance as the most critical macro risk for the coming year. The India Meteorological Department (IMD) has revised its South-West monsoon forecast to 90 per cent of the long-period average (LPA), among the lowest projected levels on record.
The report highlights a 60 per cent probability of deficient rainfall and a further 24 per cent probability of below-normal rainfall.
"For 2026, the key challenge is the emergence of El Nino risk," NSE said, adding that the downside risk is visible across different regions.
The probability of below-normal rainfall varies by region:
| Region | Probability of Below-Normal Rainfall |
|---|---|
| Northwest India | 46% |
| South Peninsula | 45% |
| Central India | 43% |
| Monsoon Core Zone | 43% |
NSE cautioned that previous El Niño years have had significant impacts on agricultural output, with rainfall deviations ranging from a 5.4 per cent deficit in 2023 to a 22.1 per cent deficit in 2002. Historically, deficient rainfall has adversely affected kharif sowing, reservoir levels, rabi production, and food inflation, according to the exchange.
Expanding Investor Base
India's equity investor base continues to grow and diversify. The NSE report noted that the registered investor base reached 13.1 crore (131 million) as of May 2026, with the addition of the latest one crore investors taking around seven months.
The investor base grew at a compound annual growth rate (CAGR) of 25.3 per cent between FY21 and FY26, compared with 16.3 per cent during FY16-FY21.
Regionally, North India now accounts for the largest share of investors at 36.7 per cent, overtaking Western India in 2022. NSE said states outside the top 10 now account for 27 per cent of the investor base, compared with around 22 per cent in FY17, indicating a gradual expansion beyond traditional large states.
The profile of investors has also become younger. The share of investors below the age of 30 rose from 23.5 per cent in March 2020 to 38.3 per cent in May 2026, while the median investor age declined from 38 years to 33 years. Young investors continue to dominate new registrations, with those below 30 accounting for 53-59 per cent of incremental additions.
Female participation has also improved, with women accounting for around 25 per cent of individual investors as of April 2026.
Persistent Market Concentration
Despite the wider participation, trading turnover remains dominated by a relatively small segment of active investors. Data for May 2026 showed that the top 2.6 per cent of active cash market investors contributed 92.3 per cent of total turnover.
Investors trading Rs 10 crore and above accounted for only 0.3 per cent of active investors but contributed 79.4 per cent of cash market turnover.
The concentration was even higher in derivatives markets. In equity options, the top 0.3 per cent of investors accounted for 69 per cent of premium turnover, while in equity futures, the top 7.8 per cent of investors contributed 93.3 per cent of turnover.
The NSE report concluded that the changing investor profile reflects deeper market penetration across India, but the concentration of trading activity highlights the continued dominance of high-volume participants in market transactions.
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