Why stock market fell today? Rising oil prices among key factors behind Rs 3 lakh crore wealth erosion

Benchmark indices Sensex and Nifty came under heavy selling pressure on Tuesday as a combination of surging crude oil prices and renewed concerns over higher interest rates dented investor sentiment.

Nifty Auto, PSU Bank, IT and Realty emerged as the biggest losers, falling up to 2% in afternoon trade, while the sell-off wiped out nearly Rs 3 lakh crore from the market capitalisation of BSE-listed companies.

The Nifty 50 declined 159 points, or 0.66%, to close at 24,052, while the 30-share Sensex dropped more than 561 points, or 0.72%, to 77,055. HCL Tech, Bajaj Finserv, SBI, Mahindra & Mahindra and IndiGo were among the top laggards, declining by up to 5%.

Here are the key factors behind today's market selloff:

1) Surging crude oil prices
Brent crude extended its rally on Tuesday, climbing another 4.5% to around $87 a barrel after surging nearly 10% in the previous session. The sharp rise followed an escalation in tensions between the United States and Iran, stoking fears of disruptions to global energy supplies.

The latest gains came after the United States reinstated its naval blockade of Iran, while both nations intensified military activity around the Strait of Hormuz, a vital chokepoint for global oil shipments. The developments have heightened concerns over the security of one of the world's most important energy trade routes.

Military operations also continued overnight. The U.S. Central Command said it conducted a third consecutive night of strikes against Iran, while Iran's semi-official YJC news agency reported seven explosions in the port city of Bandar Abbas and two more on Kish Island early on Tuesday, further escalating geopolitical tensions.

2) Rate hike concerns rise
Investor sentiment was also weighed down by mounting inflation concerns, both in India and the United States, which have revived expectations of higher interest rates.

India's retail inflation breached the Reserve Bank of India's 4% target for the first time in 17 months, rising to 4.38% in June from a year earlier, according to government data released on Monday. Inflation was driven by higher food and fuel prices, reflecting supply disruptions linked to the Iran conflict and delays in the arrival of the monsoon.

Investors were further unsettled after U.S. Federal Reserve Governor Christopher Waller said on Monday that the central bank may need to raise interest rates "in the near term" if upcoming inflation data continue to remain well above its 2% target. Speaking to the New York Association for Business Economics, Waller said monetary policy was at a "crossroads" and stressed that the Fed should not be "lackadaisical" if inflation surprises on the upside, reinforcing concerns that borrowing costs could stay higher for longer.



3) Weak Q1 show
HCL Tech, one of India's leading IT services companies, delivered a weaker-than-expected set of first-quarter numbers, raising concerns about the outlook for the country's IT sector. The disappointing earnings, coupled with a muted guidance, reignited fears over slowing discretionary spending by global clients and AI-led disruption worries, prompting investors to trim exposure to the sector. HCL Tech shares tumbled over 4% in today’s session.

This week, as many as 143 companies are likely to report their first-quarter numbers, including the heavyweights such as Reliance Industries, HDFC Bank, ICICI Bank, Axis Bank, Wipro, Infosys, and Kotak Mahindra Bank.



4) Rupee weakens past the 96-per-dollar mark
The Indian rupee slipped past the key psychological level of 96 against the U.S. dollar on Tuesday, pressured by a sharp surge in crude oil prices and escalating geopolitical tensions in the Middle East.

The currency fell 0.56% to 96.16 per dollar, its weakest level since late May, after Brent crude climbed to a one-month high. The latest bout of weakness followed the U.S. decision to reimpose its naval blockade of Iran, while military activity between the two countries intensified around the Strait of Hormuz, fuelling concerns over oil supplies and increasing pressure on oil-importing economies such as India.

“The renewed escalation in US-Iran tensions also supported the US dollar, keeping pressure on emerging market currencies. Market participants will closely watch the upcoming US CPI inflation data, which could determine the next move in the Dollar Index and global currencies. FII flows will remain another key factor, as recent improvement in foreign inflows has helped cushion the rupee's downside,” said Jateen Trivedi, VP Research Analyst - Commodity and Currency, LKP Securities.

5) Weak global cues
Global sentiment remained fragile after U.S. markets ended lower overnight and stock futures traded mixed on Tuesday, as investors grappled with escalating tensions in the Middle East while awaiting key corporate earnings and fresh inflation data.

Early Tuesday, U.S. stock futures were mixed. Dow futures fell 141 points, or 0.3%; S&P 500 futures were little changed, while Nasdaq-100 futures rose 0.4%, reflecting cautious investor positioning ahead of corporate earnings and the latest U.S. inflation data.

On Monday, Wall Street came under pressure after U.S. President Donald Trump announced the reinstatement of a blockade on Iranian shipping through the Strait of Hormuz, triggering a sharp rally in oil prices. The S&P 500 fell 0.79%, the Nasdaq Composite tumbled 1.55%, while the Dow Jones Industrial Average slipped 138 points, or 0.26%.

Asian markets rebounded on Tuesday after two straight sessions of sharp losses, as investors stepped in to buy stocks at lower levels following the recent sell-off.


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