Sensex closes at a three-month low as Brent crosses $100

Indian benchmarks finished 9 September at their lowest close since 11 June. The Sensex dropped 813.35 points, or 1.08 percent, to 74,764.23. The Nifty 50 dropped 203.60 points, or 0.86 percent, to 23,431.50. Both indices ended on the session low after a failed bounce from midday. It was the third straight down day.

Brent crude traded through $100 a barrel for the first time since 24 July and was last seen about 2.7 percent higher on the day. West Texas Intermediate sat near $94. The prompt move followed a week in which the United States said it had destroyed five Iranian oil tankers, Iran fired at a Jordanian base used by American forces and claimed hits on ships near Hormuz, and Houthi strikes started fires at Saudi energy sites. Indian importers buy more than 88 percent of the crude they refine. A three-digit Brent number feeds the import bill, the rupee and the inflation print with very little lag.

Information-technology names led the fall. HCL Tech dropped 4.55 percent, the worst of the 30-share basket. Infosys, Tech Mahindra and Tata Consultancy Services followed. HDFC Bank and Hindustan Unilever also finished lower. Nifty Bank logged a fourth down session, off 0.85 percent. Realty lost 2.23 percent, with Brigade and Lodha among the weaker stocks. Mid-caps and small-caps each lost about 0.5 percent. The winners sat in the opposite corner: Adani Ports, Adani Enterprises (up 4.74 percent in one tally), Tata Steel, Trent, NTPC and Max Healthcare.

What the desks said, in numbers rather than mood

Dharmesh Kant, head of equity research at Cholamandalam Securities, told Reuters that elevated crude and commodity prices were the main worry and that concerns had returned because the rise was persistent. Vinod Nair at Geojit said markets were pricing a longer West Asian war and that higher energy costs made the growth-inflation trade-off harder for central banks. Pabitro Mukherjee at Bajaj Broking described a session that tried to recover from the lows and then sold off again into the close.

Technical notes from the same afternoon put near support for the Sensex around 74,600 to 74,400 and resistance back at 75,000 to 75,300. Those bands matter only if crude stops climbing. Year to date the Sensex is down about 12.3 percent and 2.8 percent on the week, according to the MarketScreener close table.

The oil shock lands on a growth number the government has been advertising. First-quarter FY27 GDP printed 7.8 percent, above the Reserve Bank's 7 percent pencil mark. That print assumed an energy price the market no longer offers. Fuel retailers, the current-account line and the currency will show the new price before the next GDP release does. A stronger rupee argument from earlier in the year is harder to run when the crude invoice is written at $100.

Metals up, software down

The sector split is the other fact from Wednesday. Metal stocks gained about 1.67 percent because the same war premium that hurts a crude importer can lift a steel or miner book. Software exporters, priced in a strong-dollar, soft-client world, had no such hedge and were sold. Banks followed the growth-and-inflation scare rather than the metal bid.

None of this requires a forecast about Hormuz. It requires a statement of the bill. India cannot substitute 88 percent of its crude in a quarter. The equity market did the simple piece of arithmetic first. The policy desks will do the slower piece: how much of the $100 barrel is passed into diesel, how much is absorbed by oil-marketing companies, and how long the three-month low in the indices lasts if Brent stays where it closed.