Sensex, Nifty fall for 4th straight week as crude oil surge spooks markets
Synopsis
For the fourth week running, Indian markets could not shake off the crude oil overhang — even as GDP clocked 7.8% growth. With Brent up 8% on U.S.-Iran tensions and FIIs pulling ₹5,600 crore, the real story is how long domestic institutions can keep absorbing the foreign selling before sentiment cracks.
Key Takeaways
Nifty50 closed the week at 23,897.70 , marking a fourth consecutive weekly loss of approximately 1.2 per cent .
Sensex ended at 76,515.43 , down roughly 1 per cent for the week despite a Friday recovery of 362.57 points .
Brent crude rose more than 8 per cent and WTI crude over 9 per cent on U.S.-Iran tensions and Strait of Hormuz disruption fears.
India's GDP grew 7.8 per cent in Q1 FY27 , beating expectations, but failed to lift market sentiment.
FIIs recorded net outflows of approximately ₹5,600 crore during the week; DIIs countered with net inflows of around ₹18,560 crore .
Upcoming U.S. inflation data is the next key trigger for global and domestic market direction.
Indian equity markets endured a fourth consecutive week of losses, with the benchmark Nifty50 closing the week at 23,897.70 — a weekly decline of approximately 1.2 per cent — as surging crude oil prices and escalating U.S.-Iran hostilities overwhelmed otherwise strong domestic economic data. A partial recovery on Friday, where the Nifty gained 0.10 per cent, was not enough to reverse the broader downtrend.
Benchmark Performance This Week
The BSE Sensex closed the week at 76,515.43, rising 362.57 points or 0.48 per cent on Friday alone. Despite the late-week bounce, the index still registered a weekly loss of around 1 per cent, remaining trapped in a broader corrective and consolidation phase. The Nifty snapped a four-session losing streak on Friday but continued to trade below key moving averages, signalling a weak near-term technical structure.
Oil Shock and Geopolitical Pressure
Brent crude surged more than 8 per cent during the week, while WTI crude climbed over 9 per cent, driven by renewed U.S.-Iran hostilities and fears of potential disruptions around the Strait of Hormuz. The escalation pushed the geopolitical risk premium in global energy markets sharply higher, making investors cautious about India's import-heavy oil bill and its downstream effects on inflation and corporate margins.
This is the fourth straight week of net weekly losses for the Nifty — a losing streak not seen in several months — underscoring how external commodity shocks can override domestic economic resilience.
Strong Domestic Data Fails to Reassure
The market weakness came despite encouraging domestic signals. India's GDP expanded at 7.8 per cent in the first quarter of FY27, comfortably beating market expectations, while robust GST collections pointed to continued momentum in economic activity. However, investors largely looked past these positives, focusing instead on the potential impact of elevated crude prices on the current account deficit, retail inflation, and earnings forecasts for energy-intensive sectors.
FII Outflows vs. DII Support
Foreign Institutional Investors (FIIs) remained net sellers during the week, recording outflows of approximately ₹5,600 crore. On a month-to-date basis through September, however, FIIs were still net buyers of around ₹2,374 crore. Domestic Institutional Investors (DIIs) stepped in decisively, logging net inflows of approximately ₹18,560 crore for the week and ₹18,568 crore on a month-to-date basis, absorbing a significant share of foreign selling and acting as a key stabilising force for the market.
What Markets Are Watching Next
Investor attention will now turn to upcoming U.S. inflation data, which is expected to play a significant role in shaping global market direction. A higher-than-expected print could harden expectations of a prolonged high-rate environment in the United States, adding further pressure on emerging market equities including India. Persistent FII selling, if it resumes, could continue to cap the market's upside even as domestic institutions remain supportive.
Point of View
DIIs absorbing ₹18,560 crore in a single week is impressive, but it also raises the question of how long institutional firepower can substitute for genuine foreign conviction. If U.S. inflation surprises to the upside and crude holds elevated, the fifth weekly loss looks more likely than a reversal.
NationPress
5 Sept 2026
Frequently Asked Questions
Why did the Nifty fall for a fourth consecutive week?
The Nifty extended its losing streak to four weeks primarily due to surging crude oil prices — Brent rose over 8 per cent — driven by renewed U.S.-Iran hostilities and fears of disruptions at the Strait of Hormuz. Despite India's GDP growing 7.8 per cent in Q1 FY27, investors remained focused on the inflationary and current account risks posed by elevated oil prices.
Where did the Sensex and Nifty close this week?
The Sensex closed the week at 76,515.43, and the Nifty ended at 23,897.70. Both indices posted weekly losses of approximately 1 per cent and 1.2 per cent respectively, despite a partial recovery on Friday.
What was the FII and DII activity in Indian markets this week?
Foreign Institutional Investors recorded net outflows of approximately ₹5,600 crore during the week, while Domestic Institutional Investors provided strong support with net inflows of around ₹18,560 crore. On a month-to-date basis in September, FIIs were still net buyers of about ₹2,374 crore.
How much did crude oil prices rise this week?
Brent crude surged more than 8 per cent and WTI crude gained over 9 per cent during the week, driven by escalating U.S.-Iran hostilities and concerns over possible supply disruptions around the Strait of Hormuz.
What should investors watch in the coming week?
Investors will closely track upcoming U.S. inflation data, which could significantly influence global market direction. A higher-than-expected reading could reinforce a prolonged high-interest-rate environment in the U.S., adding further pressure on emerging market equities including India.
