Indian Stock Market: 8 Giants Lose 1.56 Lakh Crore

Eight of India's 10 most valuable listed companies lost a combined ₹1,55,671.90 crore in market capitalisation during the holiday-shortened trading week ending 23 October 2026.

HDFC Bank and Bajaj Finance accounted for the largest declines, while Tata Consultancy Services (TCS) and Larsen & Toubro (L&T) were the only two companies in the group to register valuation gains.

According to Press Trust of India reporting carried by The Economic Times, the Sensex declined 2.15% and the Nifty 50 fell 2.36% during the week.

Which Companies Lost the Most?

HDFC Bank recorded the largest absolute fall in market capitalisation, losing ₹55,506.95 crore. Its shares declined approximately 5% during the week.

Bajaj Finance followed with a valuation decline of ₹34,180.51 crore.

Other major declines included:

• Reliance Industries: ₹27,065.08 crore
• Life Insurance Corporation of India: ₹21,062.24 crore
• Bharti Airtel: ₹9,360.75 crore
• State Bank of India: ₹4,338.46 crore
• Infosys: ₹2,881.38 crore
• ICICI Bank: ₹1,276.53 crore

The losses were not uniform across companies or sectors, but the large declines in financial stocks contributed significantly to the headline figure.

Two Companies Moved Against the Trend

TCS gained ₹23,517.56 crore in market capitalisation, while L&T added ₹1,788.66 crore.

These gains highlight an important distinction: a falling broad market does not mean every major listed company declines simultaneously.

Share prices respond to different combinations of company performance, valuation expectations, sector conditions and wider market sentiment. The weekly figures alone do not establish which factor caused an individual stock's movement.

The Wider Market Lost Much More in Valuation

The combined market capitalisation of companies listed on the BSE declined by approximately ₹20.79 lakh crore over four trading sessions.

It fell from ₹472.62 lakh crore on 16 October to approximately ₹451.83 lakh crore by the end of the shortened trading week.

This broader decline shows that the weakness extended beyond India's largest companies.

But market capitalisation is not the same as money withdrawn from the market.

Market capitalisation is calculated by multiplying a company's share price by the number of outstanding shares. When prices fall, the market's valuation of those shares falls too.

The reported decline therefore represents a reduction in quoted market value, not evidence that investors collectively withdrew an equivalent amount of cash.

What Happens Next?

Investors will be watching whether market weakness continues when trading resumes, how major financial stocks perform and whether future corporate results support prevailing valuations.

A single week provides evidence of changing prices, but it cannot establish the direction of the next month or year.

The more consequential question is whether falling prices reflect a temporary reassessment of market expectations or a longer-lasting change in the outlook for corporate earnings.

What do you think the market's recent decline reveals about investor expectations? Share your observations or questions in the attached forum discussion.

Sources

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1. Mcap of 8 of top-10 firms erodes by Rs 1.55 lakh cr; HDFC Bank, Bajaj Fin biggest laggards, published on 25 October 2026 in The Economic Times, reported by PTI.
2. Top 10 firms lose ₹1.55 trillion in mcap as HDFC Bank, Bajaj Finance fall, published on 25 October 2026 in Business Standard, reported by PTI.