BSE shares jump 3% while Wipro declines 2% ahead of NIFTY50 index reshuffle move; what investors should know

Shares of Bombay Stock Exchange (BSE) surged 3%, while the IT firm Wipro declined around 2% during the trading session on Tuesday, September 29, as investors focus on the potential for fund inflows due to the upcoming NIFTY50 semi-annual index rebalancing move.

NSE data showed that BSE shares surged 3% to hit an intraday high of ₹3,191 apiece during Tuesday’s market, in comparison to ₹3,097.50 apiece at the previous equity market close.

While in contrast, Wipro shares have lost 1.8% to touch an intraday low of ₹158.59 apiece during the trading session on Sept. 29, compared to ₹161.56 apiece at the previous stock market close, as per the exchange data.

Data collected on Tuesday showed that BSE’s free-floating market capitalisation was trading at ₹1.28 lakh crore as of the mid-day deals, while Wipro’s free-floating market capitalisation was at ₹43,000 crore.

As per the official communication, the semi-annual index reshuffle is set to take place on the last working day of September, in this case, on Wednesday, September 30, when the index weightage will be rebalanced by including new performing sectors and excluding underperforming ones.

The benchmark NIFTY50 index comprises of the top 50 NSE-listed companies, which are categorised based on the highest market capitalisation (m-cap), representing the top-performing sectors on the Indian stock market.

Why was BSE added to NIFTY50?

On the technical front, BSE shares have been added to the NIFTY50 effective from Sept. 30, after the company’s average free-float market capitalisation for six months surpassed around ₹1.40 lakh crore, outperforming Wipro’s six-month average free-float market capitalisation, a reason why BSE was included in the benchmark NIFTY50 index.

However, on the fundamental side, the exchange data has shown investors that the Indian IT sector has been significantly underperforming compared to the benchmark index, which is in losses due to key sectoral headwinds amid the push for artificial intelligence.

Wipro has been following the trail of losses, with the company’s stock down more than 40% on a year-to-date (YTD) basis so far in 2026. NSE data also showed that the shares have declined nearly 12% in the past one month and were down around 4% in the last five days.

In contrast, capital market exchange services provider BSE shares have gained more than 21% on a YTD basis, with rising market participation and rising trading volumes across asset classes.

How will NIFTY50 inclusion impact stock?

The index reshuffle is expected to trigger massive fund inflows and outflows from specific stocks, as institutional investors like passive funds, hedge funds, ETFs, and others rebalance their portfolios to match the index constituents, in turn triggering movement in investments.

Media reports suggest that due to the NIFTY50 inclusion, BSE shares are expected to witness fund inflows worth nearly $595 million, while Wipro is set to record outflows to the tune of $152 million as passive funds and ETFs replicate the index holdings.

Due to this index reshuffle, the stocks which are included and excluded from the benchmark NIFTY50 index are expected to witness major near-term volatility, which will impact share performance.

Alongside the NIFTY50 index, other major indices on NSE will also have additions and exclusions, which will trigger temporary movement in stock prices.