8-Day Bull Run Drives Mcap of 8 Most-Valued Firms Up by Rs 1.69 Trillion; Who Is the Biggest Winner?

Eight days of continuous market gains fuelled the market capitalisation of the eight top ten most valued firms on Nifty and Sensex last week. BSE Sensex surged by around 982 points in five days and closed at 81,904 points on Friday. Nifty 50 surged around 108 points to close at 25,144, for the first time in a month.

Developments around the Goods and Services Tax (GST) rate cut, along with favourable macroeconomic trends, supported the bullish sentiment and drove the Nifty and Sensex performance last week. Reliance Industries Limited, HDFC Bank, Tata Consultancy Services (TCS), Bharti Airtel, ICICI Bank, State Bank of India, and Infosys were among the top gainers, but which company emerged as the biggest gainer of the week? Let's find out.

Mcap of 8 Top BSE Heavyweights Surge By Rs 1.69 Trillion: Which Is The Top Gainer?

Reliance Industries, HDFC Bank, TCS, Bharti Airtel, ICICI Bank, State Bank of India, Infosys and Bajaj Finance were among the top gainers on BSE and NSE last week. Out of all of them, Bajaj Finance was the biggest gainer of the week as its market capitalisation surged from Rs Rs 40,788.38 crore to Rs 6,24,239.65 crore.

Bajaj Finance shares surged by around 6.8% in the past five trading sessions. The stock surged around 3.4% to close at Rs 1003.2 per share on BSE on Friday. The financial sector's stock value has surged by 44% since the beginning of the year 2025 (year to date).

Other Top Gainers Of the Week

Other than Bajaj Finance, Infosys, TCS, Reliance Industries Limited (RIL), etc also rallied during the week as overall positive sentiment prevailed across the market.
Infosys also saw a significant increase of Rs 33,736.83 crore in its valuation, bringing it to Rs 6,33,773.30 crore. Tata Consultancy Services (TCS) experienced a boost of Rs 30,970.83 crore in its market capitalisation (mcap), now standing at Rs 11,33,926.72 crore.

Reliance Industries' valuation rose by Rs 27,741.57 crore to reach Rs 18,87,509.28 crore. Meanwhile, State Bank of India's mcap climbed by Rs 15,092.06 crore to total Rs 7,59,956.75 crore. ICICI Bank's valuation increased by Rs 10,644.91 crore to hit Rs 10,12,362.33 crore.

HDFC Bank's market value edged up by Rs 6,141.63 crore to reach Rs 14,84,585.95 crore during the same period.

Top Laggards Of The Week

Hindustan Unilever (HUL) faced a decrease in its market valuation by Rs 12,429.34 crore to settle at Rs 6,06,265.03 crore. Similarly, the Life Insurance Corporation of India (LIC) saw its market capitalisation decline by Rs 1,454.75 crore to stand at Rs 5,53,152.67 crore.

Stock Market Recap

Nifty and Sensex continued their bullish during the past five trading sessions. THere was a sharp rebound in defence sector stocks with Nifty Defence surging around 4.35%. The rally took the sectoral index to an eight-week high mark.

"The rally was driven by a robust order pipeline, rising geopolitical tensions, and the Ministry of Defence unveiling a comprehensive 15-year modernisation roadmap on September 5. Key gainers included GRSE, MTAR Tech, Astra Micro, and Paras Defence, which surged 5-10%," noted Motilal Oswal in its report. Metal, FMCG and IT sector stocks also emerged strong during the session.