Sensex, Nifty post 1.7% weekly gain on US-Iran peace deal hopes
Synopsis
Indian benchmarks logged a second straight week of gains as a US-Iran MoU on the Strait of Hormuz sent crude below $80 and the rupee surging 79 paise. But Friday told a different story — IT cratered 6.5% on Accenture's profit warning, and peace talks hit an abrupt snag, leaving markets in a delicate balance heading into the next week.
Key Takeaways
Sensex gained 1.69% for the week but fell 607 points on Friday to close at 76,802 .
Nifty50 added 1.65% weekly, ending Friday at 24,013 , down 0.64% .
A 14-point US-Iran MoU — covering the Strait of Hormuz , naval blockade removal, and commercial shipping — drove the week's optimism.
Nifty IT index plunged 6.5% after Accenture cut its FY26 constant-currency revenue growth guidance.
Defence sector surged 6.6% ; Nifty Midcap100 and Nifty Smallcap100 rose 2.62% and 3.23% respectively.
India's June monsoon rainfall is tracking 38% below normal , raising concerns over kharif sowing and food inflation.
The BSE Sensex and NSE Nifty50 closed out the week ending 20 June with their second straight week of robust gains, driven by investor optimism around a potential US-Iran peace agreement and a meaningful decline in Brent crude prices. The Nifty added 1.65% over the week, while the Sensex gained 1.69%, even as both benchmarks retreated on Friday amid profit-booking and a sharp IT sector sell-off.
Weekly Closing Levels
The Nifty50 ended Friday's session down 0.64% at 24,013, while the Sensex fell 607 points or 0.78% to close at 76,802. Friday's consolidation was largely attributed to a sharp sell-off in IT stocks following three consecutive sessions of benchmark gains. The broader market, however, outperformed — the Nifty Midcap100 surged 2.62% and the Nifty Smallcap100 jumped 3.23% over the week.
US-Iran Peace Pact and Crude Oil Impact
A 14-point US-Iran Memorandum of Understanding signed during the week proved to be the dominant market catalyst. The MoU included the reopening of the Strait of Hormuz, removal of the naval blockade, and restoration of commercial shipping — developments that pushed Brent crude below $80 per barrel. However, abrupt cancellations of peace talks and profit-booking toward the close of the week halted the crude price decline. The Indian rupee strengthened by roughly 79 paise during the week to around ₹94.35 per dollar, reflecting the improved geopolitical backdrop.
Sectoral Highlights: Defence Surges, IT Slumps
The defence sector was the standout performer, rallying 6.6% over the week on strong underlying fundamentals, according to market participants. Consumer durables, real estate, pharma, and defence were the other notable sectoral gainers. IT, however, emerged as the biggest laggard — the Nifty IT index plunged 6.5% after Accenture lowered its FY26 constant-currency revenue growth guidance and issued a weaker-than-expected outlook, rattling sentiment across the sector.
Macro Watchpoints for the Week Ahead
On the monetary policy front, the US Federal Reserve maintained a cautious, data-dependent stance with limited forward guidance, reinforcing a higher-for-longer rate disposition. Analysts noted that with the Reserve Bank of India (RBI) also maintaining a cautious stance, declining crude prices and progress in trade deals with the UK and US could support a gradual improvement in the outlook — though clearer policy direction may take one or two more reviews. Investors are also closely tracking India's monsoon rainfall, with cumulative June rainfall tracking 38% below normal amid ongoing El Nino conditions. Any further delay in monsoon progression could heighten concerns over kharif sowing, food inflation, and rural demand. Key data to watch include India PMI, credit growth figures, and US PCE and GDP prints.
Point of View
And with US discretionary spending under pressure, the sector's outperformance of the past year faces a genuine re-rating risk. Meanwhile, a monsoon deficit of 38% below normal is an underappreciated domestic risk; if it persists into July, the RBI's room to cut rates narrows just as global headwinds intensify. Broad market outperformance by midcaps and smallcaps suggests retail-driven momentum is still intact, but that is historically the last segment to correct when sentiment turns.
NationPress
20 Jun 2026
Frequently Asked Questions
Why did Sensex and Nifty post weekly gains this week?
The Sensex gained 1.69% and the Nifty added 1.65% for the week ending 20 June, primarily driven by investor optimism over a US-Iran peace agreement and a fall in Brent crude prices below $80 per barrel. A 14-point MoU covering the Strait of Hormuz and restoration of commercial shipping boosted sentiment across global and Indian markets.
Why did IT stocks fall sharply on Friday?
The Nifty IT index plunged 6.5% over the week after Accenture lowered its FY26 constant-currency revenue growth guidance and issued a weaker-than-expected outlook. This rattled investor confidence in Indian IT majors, making the sector the biggest laggard of the week.
What is the US-Iran MoU and how did it affect Indian markets?
The 14-point US-Iran Memorandum of Understanding, signed during the week, included reopening the Strait of Hormuz, lifting the naval blockade, and restoring commercial shipping. It pushed Brent crude below $80 per barrel and strengthened the Indian rupee by roughly 79 paise to around ₹94.35 per dollar, lifting broader market sentiment.
Which sectors performed best this week?
Defence was the top-performing sector, rallying 6.6% over the week. Consumer durables, real estate, and pharma were also notable gainers. In the broader market, the Nifty Midcap100 gained 2.62% and the Nifty Smallcap100 surged 3.23%, both outpacing the benchmark indices.
What are the key risks and data points to watch next week?
Analysts are watching India's monsoon progression — cumulative June rainfall is tracking 38% below normal due to El Nino, raising concerns about kharif sowing, food inflation, and rural demand. Key data includes India PMI, credit growth figures, and US PCE and GDP prints. The RBI's policy direction and progress on trade deals with the UK and US are also in focus.
