Archive · 29 Sep 2026
BSE Nifty 50 Entry Drives Record NSE Auction Activity
Bombay Stock Exchange was added to the Nifty 50 index.
This made funds that follow the index buy many Bombay Stock Exchange shares.
As a result, the stock exchange’s closing trading session became unusually busy.
Bombay Stock Exchange shares finished 3.31% higher.
Wipro also saw heavy trading because it left the Nifty 50.
The market was especially jumpy because index changes happened on the same day as monthly derivatives expiry.
The Nifty briefly dropped sharply during the closing auction.
It recovered that fall before the auction ended, but analysts said the stock’s longer-term performance will depend on more than index-related buying.
NSE’s closing auction turnover reached Rs 24,504 crore, its second-highest single-session total.
Investors traded 19.52 million Bombay Stock Exchange shares worth Rs 6,247 crore during the auction.
Bombay Stock Exchange shares rose 3.31%, with nearly 1.77 percentage points of the gain coming during the auction.
Wipro recorded Rs 2,041 crore in auction turnover after moving from the Nifty 50 to the Nifty Next 50.
The Nifty’s indicative closing level briefly fell 431 points before recovering during the volatile auction.
- Who
- Bombay Stock Exchange, index-tracking funds and other investors, Wipro, and market analysts were involved.
- What
- Bombay Stock Exchange’s inclusion in the Nifty 50 triggered heavy closing-auction trading and market volatility.
- When
- On Tuesday, during the closing auction; the session also coincided with monthly derivatives expiry.
- Where
- On the National Stock Exchange of India, including its closing auction session.
- Why
- Nifty 50-tracking funds and other investors rebalanced their portfolios after the index reshuffle, while derivatives expiry and position rollovers amplified volatility.
Cautious outlook
Potentially positive outlook
Impact of index inclusion
Cautious outlook
Alok Singh said passive inflows from Nifty 50-tracking ETFs could be substantial but may not materially change Bombay Stock Exchange’s longer-term prospects.
Potentially positive outlook
The inclusion is expected to generate sizeable passive inflows, and the immediate rebalancing produced heavy buying and a 3.31% share-price gain.
Future share-price direction
Cautious outlook
Singh highlighted stronger price discovery and liquidity on the National Stock Exchange of India and said regulatory changes could affect Bombay Stock Exchange’s derivatives-market gains.
Potentially positive outlook
Jay Vora said selling pressure appeared to be easing; a move above Rs 3,299 and Rs 3,347 could revive buying interest, while Rs 3,000-Rs 3,100 could offer support.
- NSE closing-auction turnover
- Rs 24,504 crore, the exchange’s second-highest single-session total
- Bombay Stock Exchange auction volume
- 19.52 million shares worth Rs 6,247 crore
- Bombay Stock Exchange share performance
- Up 3.31% from the previous close
- Wipro auction turnover
- Rs 2,041 crore across 130.17 million shares
- Nifty indicative decline
- 431 points in about two-and-a-half minutes
- Bombay Stock Exchange previous high
- Rs 4,403, reached on May 26, 2026
- Key technical levels
- Resistance at Rs 3,299 and Rs 3,347; support at Rs 3,000-Rs 3,100