What drove the index reshuffle?

BSE is set to replace Wipro in the Nifty 50 from September 30, in a reshuffle that highlights the sharp divergence in fortunes between India’s capital-market boom and its once-dominant IT services sector. BSE’s six-month average free-float market capitalisation has risen to at least 1.5 times that of Wipro, making it eligible for inclusion in the benchmark index.

The fortunes of BSE and Wipro have moved in opposite directions this year. While BSE shares have surged about 37 per cent, Wipro has fallen nearly 30 per cent, paving the way for the exchange operator to replace the IT major in the Nifty 50 from September 30.

The National Stock Exchange (NSE), which administers the Nifty 50, confirmed the change on Monday as part of its routine semi-annual index review.

According to NSE, BSE’s inclusion is driven by a sharp increase in its free-float market capitalisation. Over the past six months, the exchange operator’s average free-float market value has been at least 1.5 times that of Wipro, which was the smallest constituent in the index.

The development carries weight given the Nifty 50’s role as a key benchmark for domestic and global investors, as well as for passive investment funds. NSE data indicates that funds tracking the index managed approximately $97 billion in assets as of May 31.

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Why the change has been made

The Nifty 50 is constructed on the basis of free-float market capitalisation, averaged over a six-month period, and is subject to strict liquidity and eligibility criteria.

BSE’s market value has surged in recent months, reflecting growing investor interest in India’s capital markets and increased participation in equities. The exchange has emerged as a key beneficiary of this trend, with its stock witnessing strong upward momentum.

On Monday, BSE shares ended the session nearly 4 per cent higher. The stock has gained approximately 37 per cent so far in 2026, according to Reuters data.

In contrast, Wipro has underperformed significantly. Its shares declined 1.1 per cent on Monday and are down about 29.5 per cent year-to-date in 2026.

This divergence in performance has been central to the index reshuffle, with BSE meeting the inclusion threshold while Wipro falls out of the benchmark.

Broader shift in market sentiment

The rejig comes at a time when investor sentiment towards India’s IT services sector is undergoing a reassessment.

Technology exporters are grappling with uncertainty over the long-term impact of artificial intelligence on traditional outsourcing and services models, even as they invest heavily to adapt to AI-driven transformation.

At the same time, India’s financial markets continue to see strong inflows from retail investors and household savings. This sustained participation has strengthened businesses linked to the capital markets ecosystem.

BSE has been a direct beneficiary of this structural shift. As India’s oldest stock exchange, it operates across equities, derivatives, and other financial market segments, and has seen renewed investor interest amid expectations of rising trading volumes and deeper market activity.

Implications of the inclusion

BSE’s entry into the Nifty 50 is expected to significantly enhance its visibility among institutional investors and index-tracking funds.

Given the scale of passive assets linked to the benchmark, index adjustments typically trigger portfolio rebalancing. Funds tracking the Nifty 50 will need to adjust their holdings to reflect the new composition.

With approximately $97 billion in assets tracking the index as of May 31, the September 30 change could generate incremental buying in BSE and corresponding selling pressure on Wipro from passive funds. However, the actual market impact will depend on fund positioning and broader liquidity conditions at the time of execution.

For BSE, inclusion in the Nifty 50 marks a major milestone, placing it alongside some of India’s largest and most influential listed companies across banking, energy, financial services, and technology sectors.

For Wipro, its removal underscores the challenges confronting large IT services firms as investors reassess growth prospects in an environment shaped by rapid technological disruption, particularly advances in artificial intelligence.

The changes will take effect after market close on September 30, when BSE will officially replace Wipro in the Nifty 50 index.