Stock Market Benchmarks Post Best Week in Six Years Amid Diwali Rally

Foreign Buying and Cheaper Oil Fuel a Broad Dalal Street Rebound

A sharp weekly recovery lifted large-cap shares, the rupee and government bonds, but smaller stocks lagged and oil-market risks remain.

A powerful rebound, led by large companies

The Nifty 50 rose 8.58% over the week and the Sensex gained 8.82%. On Friday, the Nifty closed at 25,030.35, up 2%, while the Sensex advanced 2.17% to 81,028.02. Both benchmarks extended their winning streak to seven sessions and moved close to levels seen when the West Asia conflict began on February 28.

Private-sector banks were prominent in the advance. The Nifty Financial Services index rose 10.41% for the week, and private-sector banks accounted for ₹3.23 trillion, or 22%, of the increase in Nifty 50 companies’ combined market value. That total rose ₹14.83 trillion to ₹200.81 trillion between October 30 and November 6.

The rally was less convincing beyond large caps: the Nifty Midcap 150 slipped 0.09% on Friday and the Nifty Smallcap 250 fell 0.85%. That divergence matters because benchmark strength alone does not establish that investors are broadly willing to take on risk. The week’s gains were substantial, but breadth remains a point to watch.

Foreign inflows met a wave of short-covering

Foreign portfolio investors bought a record ₹45,960 crore of Indian equities during the week. Domestic institutional investors, by contrast, sold ₹24,197 crore, their largest-ever weekly net outflow. The opposing flows suggest that the recovery was driven more by overseas buying than by a uniform shift among investor groups.

Derivatives activity points to another source of momentum. Nifty futures rose 8.4% while open interest fell 17.6%, a combination consistent with traders closing bearish positions rather than only building fresh bullish bets. Foreign investors also closed 103,315 Nifty 50 futures contracts during the week. Short-covering can accelerate a rebound, but by itself it does not confirm that buying will persist.

Oil’s retreat eases pressure on the rupee and inflation outlook

Brent crude fell nearly 18% from its October 30 high of about $118 a barrel, registering its steepest weekly percentage decline since the 2020 Covid-triggered crash. The pullback, alongside foreign equity inflows, helped the rupee strengthen for a sixth consecutive session. It settled at 93.91 against the dollar, its strongest close since April 22, 2026.

Cheaper oil can offer India relief because the country imports large volumes of crude. If sustained, lower prices could ease pressure on the import bill and inflation, while improving the operating environment for oil marketing companies. But the source data also underline why a single week’s decline is not enough to settle the outlook: geopolitical developments continue to influence supply expectations, and Brent remained volatile around the $100 mark.

Cross-market gains come with important caveats

The 10-year government bond yield fell 23 basis points over the week, its sharpest weekly decline since 2019, before rising about 2 basis points on Friday to 7.19%. Meanwhile, foreign exchange reserves declined for an eighth consecutive week to $717.06 billion in the week ended October 30. The rupee’s recovery therefore came alongside continued reserve drawdowns, rather than an across-the-board improvement in every external indicator.

For oil marketing companies, lower crude is not an immediate guarantee of stronger profitability. The article cites October under-recoveries of ₹12 a litre on diesel and ₹9 on petrol, alongside losses of around ₹230-245 on each LPG cylinder. Retail fuel prices and refining margins also remain relevant to their financial position. Investors will need to assess the durability of cheaper crude, foreign flows and earnings support rather than extrapolate the week’s index performance.

Key Highlights

• The Nifty 50 and Sensex gained 8.58% and 8.82%, respectively, for the week.
• FPIs bought a record ₹45,960 crore, while DIIs recorded net sales of ₹24,197 crore.
• Private-sector banks and financial shares were among the strongest contributors to the rebound.
• Mid- and small-cap indices lagged, signalling weaker participation outside benchmark stocks.
• Crude’s sharp retreat supported the rupee, though oil prices and geopolitical risks remain uncertain.

Investor Note: The rally has improved sentiment, but its concentration in large caps and the role of short-covering warrant caution. Investors may want to track whether foreign buying broadens, smaller shares participate and lower crude prices persist before treating one strong week as a durable change in market direction.