Main board IPOs generated 19.1% returns between April and September 2026, vastly outperforming the Nifty index. However, high debut-day failure rates have reignited calls for a mandatory grading system to protect investors from market volatility and poor fundamentals.
The Indian primary market has seen a massive surge in activity throughout 2026, with investors flocking to new listings despite high market volatility. Between April 1 and September 30, 2026, data from the National Stock Exchange shows that an investor diversifying into all 108 main board IPOs would have secured a 19.1% gain. This performance is a stark contrast to the secondary market, where tactical trading in the Nifty index yielded muted returns of roughly 1% to 2% during the same period.
High Returns Versus Debut Risk
While the headline numbers suggest a strong run, the actual experience for many investors has been mixed. Market volatility, which measured at an annualized daily rate of 13%, has made timing an IPO listing extremely difficult. Companies cannot pick the best date to launch, meaning investors must accept the market mood on the day of the listing. As a result, approximately 25% of the main board companies listed during this period debuted below their issue price. The risk is even higher for small and medium enterprises, or SME IPOs, where one-third of the issues closed at a loss on their first day of trading.
The Case for Reintroducing IPO Grading
These failure rates have led analysts and investor groups to call for the return of a mandatory IPO grading system. Currently, IPO grading is optional in India, with SEBI-registered credit rating agencies offering it on a five-point scale. However, most companies avoid this process, fearing that a low grade could signal weakness to the market and hurt investor sentiment.
Advocates for a mandatory system argue that the current disclosure documents are often insufficient for retail investors to gauge the true health of a business. A standardized grading process could provide a necessary layer of due diligence, focusing on key areas like corporate governance, financial stability, capital efficiency, and management quality. By forcing companies to undergo independent scrutiny, it could provide investors with a more reliable framework to differentiate between quality companies and those riding only on hype.
Learning from Past Mistakes
The previous attempt at mandatory IPO grading faced criticism because it was often judged against short-term listing gains rather than long-term business performance. Financial experts suggest that if a new system is introduced, it must focus on long-term business fundamentals rather than trying to predict share price movement on the day of listing.
For investors, the immediate challenge remains the selective nature of the market. As the IPO pipeline continues to grow, with large listings expected in the coming months, the reliance on independent research and thorough analysis of company financials becomes crucial. The key monitorable for the market will be whether regulators decide to overhaul the current disclosure framework to include mandatory, fundamentally driven ratings, which could change how investors approach the primary market.