BSE to Join Nifty 50: Wipro to Exit From September 30, 2026

BSE to Join Nifty 50 is one of the many announced index changes by NSE Indices for September 2026. BSE Ltd. will be an inclusion in the benchmark Nifty 50 index and will replace Wipro Ltd. The inclusion will take effect on September 30, 2026, the day after the trading close on Sept 29, 2026. The primary reason for this inclusion of BSE was that the six-month average free-float market capitalization went over the required threshold as compared to the smallest constituent of Nifty 50, Wipro.

For all investors, this illustrates that NSE Indices rebalances a major Indian stock index at regular intervals. This inclusion of BSE and the replacement of Wipro does not substantiate that BSE is a better investment prospect than Wipro. Rather, it shows how NSE Indices evaluate and select companies for the Nifty 50.

Here is what you need to know about the inclusion of BSE into the Nifty 50 and replacement of Wipro, the effective date, the selection criteria, and the possible effects on both the stocks and the investment funds that track the index.

What Is Changing With BSE Inclusion in Nifty 50?

As per the NSE Indices statement dated 10th August 2026, BSE Ltd. will be included in Nifty 50 and Wipro Ltd. will be excluded. These changes have been made following the routine semi-annual changes to broader market indices.

Per the announcement, changes take effect on September 30, 2026. For that reason, on September 29 there will be the final opportunity to trade the old index composition, as all changes will become effective on the next trading day.

Applying the same logic, the Wipro replacement by BSE will be applicable to the Nifty 50 Equal Weight Index. In addition, BSE will also become part of the Nifty 100 as part of the September review.

Why is BSE Joining the Nifty 50?

The main reason is the Nifty 50's criterion of the stock's six-month average free-float market capitalization. The Nifty 50 does not select companies based on their total market capitalization or recent performance of their shares. Companies that satisfy all of the index selection criteria and conditions are evaluated using the index methodology.

The six-month average free-float market capitalization of BSE, as reported by NSE Indices, is around ₹1, 40,879 crores. Among the existing Nifty 50 constituents, Wipro, the stock with the smallest market capitalization, had an average free-float market capitalization of around ₹55,930 crores.

In order for an eligible stock to be considered for inclusion, the six-month average free-float market capitalization of the stock should be at least 1.5 times that of the smallest Nifty 50 constituent. Thus, BSE satisfied the criterion for an eligible stock for inclusion in the Nifty 50.

At the reported figures, the requirement is approximately ₹83,895 crores, which is 1.5 times Wipro's ₹55,930 crore. BSE's average free-float market capitalization of ₹1,40,879 crores was significantly above this.

Understanding that the change was made due to an index decision, based on the rules, is important. This change does not mean that NSE Indices believes that BSE is a fundamentally better stock than Wipro.

What are the Criteria for Adding Stocks to the BSE Nifty 50? Why Were Some Stocks Not Added?

The BSE Nifty 50 inclusion criteria state that TVS Motor Company and Divi’s Laboratories have an average free-float market capitalization of Rubiah 84,566 and Rubiah 82,930 respectively, over the last six months.

The review also considered other eligible companies.

Wipro's exclusion resulted in the review also considering HDFC Life Insurance Company and Tata Consumer Products, which have average free-float market capitalizations of Rubiah 65,666 and Rubiah 73,054 respectively, in the two Nifty 50 constituents with the lowest average free-float market capitalization.

Their combined threshold conditions did not lead to the inclusion of TVS Motor Company or Divi’s Laboratories in this review.

An important eligibility criterion is that stocks must be tradeable in NSE Futures & Options segment.

Investors may review the broader methodology through the official Nifty 50 index information on NSE Indices.

When will BSE Join the Nifty 50?

The changes will take effect after 30 September 2026. The changes will take effect on 30 September 2026, and NSE Indices has stated that trading will continue as normal until the close of 29 September 2026.

This is important to note. Investors must not consider 30 September 2026 as the last trading day of the old composition. The new index composition is effective as of 30 September 2026 while the 29 September 2026 close is the reference point after which the changes will take effect.

Indices rebalancing triggers rebalancing from funds and other market participants who follow or measure their performance against an index. However, market outcomes are a function of fund mandates, liquidity in the market, market conditions, fund portfolio weights, etc.

What Occurs with Wipro Post the Nifty 50 Shift?

As part of Wipro Limited’s transition from the Nifty 50 to the Nifty Next 50, it will stay in the Nifty Next 50. Companies outside of the Nifty 50 that exist in the Nifty 100 are eligible for the Nifty Next 50.

Certain companies such as Hitachi Energy India, Polycab India, Vedanta Aluminium Metal, and Vodafone Idea will be added to the Nifty Next 50 in the September review. Wipro’s transition will not mean it will no longer be part of significant NSE indices.

For investors of Wipro Limited, the transition in index status will not affect the operation of the company, the rights of ownership, or the number of shares held in a demat account. This is a change in classification of an index. Trading demand will not be the same for all investors, and the market price can change according to trading demand and investor expectations.

Potential Impact on BSE Shares

Admitting Wipro Limited to Nifty 50 would mean greater participation of institutional investors and market participants in BSE Limited. Since most investment products and portfolios around the world use the Nifty 50 as a benchmark, Wipro Limited’s inclusion in Nifty 50 would mean that funds or portfolios that aim to replicate Nifty 50 would have to buy Wipro Limited and sell BSE Limited prior to, or immediately after, the rebalance. However, no index inclusion guarantees a rise in the price of BSE Limited shares.

The reaction to the price will be based on whether the stock has already factored in the expected demand attributed to the index. Market conditions and the business and profitability outlook of BSE also become relevant.

The inclusion of an index does not mean that demand for a stock does not need to be analyzed. Investors will still need to assess the stock from the points of view of the company's growing revenues or profits, competitive factors, changes in regulations, valuations, internal and external factors, and so on.

Potential Impact on Wipro's Stock Price

Wipro will likely be removed from the Nifty 50 Index, but will likely be added to the Nifty Next 50 Index. Some investment funds that follow the Nifty 50 Index will likely remove their holdings of Wipro shares and sell, but funds that follow the Nifty Next 50 Index will likely buy shares of Wipro.

The potential for selling Wipro shares is balanced by buying shares of Wipro, making the net effect more complex than trading pressure on Wipro shares. The timing and amount of trades related to the index will depend on the mandates and the current holdings of the fund managers.

Investors need to understand that Wipro's removal from the Nifty 50 is not a sell signal. Wipro is still traded and, as a listed company, will retain its long-term investment case based on the performance and valuation of the company within its industry and the prospects of future earnings.

Changes to the BSE Nifty 50 and Index Funds

The Nifty 50 is an index consisting of 50 stocks designed to represent the largest and most important companies within the Indian economy. Companies are weighted by their market capitalization, meaning those companies with the larger market capitalization will have a larger weight in the index.

According to NSE Indices, the Nifty 50 is a diversified 50 stock index of the most important sectors of the Indian economy and is one of the most widely recognized benchmarks. Index funds and ETFs track this index.

For funds and ETFs following the Nifty 50, if you hold a fund, your manager will take care of buying the newly added stock and selling the stock replaced. An investor is not necessarily required to sell Wipro and buy the BSE.

Other Nifty Indices Changing in September 2026

The changes announced by the BSE-Wipro swaps in September are less significant than indicated in the BSE-Wipro changes. In its broader announcement, the National Stock Exchange (NSE) Indices has announced changes across multiple broad-based market indices.

BSE, Hitachi Energy India, Polycab India, Vedanta Aluminium Metal and Vodafone Idea will be included in Nifty 100. In contrast, Indian Hotels Company, Lodha Developers, REC, Shree Cement and United Spirits will be excluded.

Following rebalancing of Nifty 100, Hitachi Energy India, Polycab India, Vedanta Aluminium Metal and Vodafone Idea will be included in Nifty Next 50.

Changes made to one Index family impact another. Hence, a company leaving Nifty 50 may will find its way into Nifty Next 50 and changes made to Nifty 100 may impact Nifty Next 50.

Investors may review the official Index announcements and the accompanying methodology provided by NSE Indices in their press releases .

What should Investors Keep an eye on before September 30?

• Effective date: The changes will become effective after the close of 29 September 2026.

• Index weight: Investors should refer the latest official data of the Index before release or analysis to ascertain the exact weight of BSE in Nifty 50.

• Activity of Index Funds: It is expected that Index Funds will undertake their rebalancing exercises around the effective date. However, the extent and timing of rebalancing flows may differ.

• Stock fundamentals: Index rebalancing should not be a substitute for analysis of fundamentals of the business.

• Market conditions: The overall market sentiment has the potential to impact stock prices more than a change in an Index.

Users curious about how movements in the index affect individual stocks can learn more with our guide on the Nifty 50.