On October 21, 2026, the Indian stock market indices Sensex and Nifty erased their early gains and tumbled nearly 1% by noon. This decline was driven by a sell-off in defence stocks, rising global crude oil prices, and foreign institutional investors selling shares. The market volatility was reflected in the India VIX index, which peaked at 16.17 during the day.
- The Sensex fell by up to 0.8%, reaching an intraday low of 73,281.78 points.
- The Nifty50 dropped as much as 0.95%, hitting a low of 22,672.25 points.
- Foreign institutional investors sold stocks worth ₹1,148.64 crore on Monday, while domestic investors bought ₹3,201.19 crore.
- Brent crude oil prices remained high at about $109 per barrel.
- Key gainers included Infosys, Tech Mahindra, TCS, HCL Technologies, and UltraTech Cement.
- Top losers in the Nifty50 were Eternal, Bajaj Finance, Eicher Motors, Trent, and Adani Enterprises.
Why Did Sensex and Nifty Decline on October 21, 2026?
The decline in the Sensex and Nifty indices was mainly due to a combination of factors. A sell-off in defence stocks contributed to the downward pressure. Additionally, elevated global crude oil prices increased concerns about inflation and costs for companies. Foreign institutional investors (FIIs) also sold shares worth over ₹1,100 crore, adding to the market's negative sentiment. Despite this, domestic institutional investors (DIIs) continued to buy equities, partially offsetting the selling pressure.
Which Stocks Showed Significant Movement?
Shares of L&T Technology Services (LTTS) surged by as much as 14.7% to ₹4,143 per share after reporting a 66.8% year-on-year increase in consolidated net profit to ₹548.2 crore for the second quarter of the 2026-27 financial year. The company also declared an interim dividend of ₹20 per equity share.
Reliance Industries Limited (RIL) shares rose up to 2.7%, reaching ₹1,234.30 per share. This increase coincided with the opening of the initial public offering (IPO) of its digital and technology arm, Jio Platforms, which became fully subscribed within hours.
Transrail Lighting's stock rallied nearly 9.74% after the company secured fresh orders worth ₹927 crore, mainly in domestic power transmission and distribution projects.
On the other hand, Bajaj Finance shares declined by up to 3.6% due to concerns about margin pressure despite reporting a 29% year-on-year increase in net profit for the quarter.
What Were Other Notable Corporate Developments?
Hindustan Zinc reported a 142% rise in consolidated net profit to ₹6,412 crore for the quarter ended September 30, 2026, driven by higher metal prices and increased production. Its stock initially gained but later slipped into the red zone.
Piramal Finance posted a 67% increase in consolidated net profit to ₹545 crore for the same quarter, with interest income rising 26%.
Larsen & Toubro (L&T) secured two large orders in India for government building projects, each valued between ₹2,500 and ₹3,000 crore.
Zydus Lifesciences received final approval from the US Food and Drug Administration for a generic drug to treat menopause symptoms and prevent osteoporosis.
HFCL shares hit a 52-week high of ₹282.25 after reporting a 435% year-on-year increase in net profit, but later declined.
HD Fire Protect Ltd made a strong stock market debut with shares listing at a premium of over 23% compared to its IPO price.
What Is the Outlook for the Market?
The market remains sensitive to global crude oil prices, foreign investor activity, and sector-specific developments. While some companies reported strong earnings and secured large orders, overall market sentiment was cautious due to external factors like oil prices and volatility indices. Investors are advised to monitor these factors closely in the coming weeks.
