Sensex Jumps 564 Points, Nifty Extends Winning Streak as Crude Falls and FII Buying Returns

Indian stock markets started the week on a stronger note as the Sensex jumped 564 points and the Nifty extended its winning streak to four sessions on September 21, 2026. Cooling crude oil prices, renewed foreign institutional buying and positive global market cues helped improve investor sentiment after a prolonged period of weakness.

The BSE Sensex gained 564.03 points, or 0.76%, to close at 74,858.99, while the Nifty 50 rose 67.90 points, or 0.29%, to finish at 23,414.30. The Sensex had climbed as much as 692 points during the session, reaching 74,987.40.

The rally came despite continuing geopolitical uncertainty and concerns over elevated oil prices. For investors, the day's move highlighted how quickly sentiment can improve when pressure from crude oil and foreign fund selling begins to ease.

Why Did the Sensex and Nifty Rise Today?

Three factors stood out in Monday's trading session: lower crude prices, renewed foreign fund buying and supportive global markets.

Crude Oil Prices Cool

Crude oil was one of the biggest positives for Indian equities.

Brent crude, the global oil benchmark, fell roughly 2.36% to around $101.40 a barrel during the session. Other market reports also placed Brent around $101–102 a barrel as concerns over supply disruptions eased.

Lower crude prices are particularly important for India because the country imports a large share of its oil requirements.

When oil becomes more expensive, India's import bill can rise, putting pressure on the trade balance and the rupee. It can also increase input and transportation costs for businesses and complicate the inflation outlook.

A decline in crude therefore provides some relief to oil-consuming sectors and can improve expectations around corporate margins and India's macroeconomic stability.

The effect is not uniform, however. Oil producers and companies linked to the energy value chain can respond differently to changes in crude prices.

Foreign Buying Returns After Seven Sessions

Another important signal came from foreign institutional investors.

Foreign institutional investors, or FIIs, bought Indian equities worth approximately ₹599.54 crore on September 18, according to exchange data. This ended a seven-session selling streak.

Domestic institutional investors also remained supportive, buying more than ₹1,000 crore of equities during the same session. Financial Express reported DII buying of approximately ₹1,019.69 crore.

One day's inflow does not establish a lasting trend, particularly because foreign investors had remained net sellers for much of September. Reports indicated that FPIs had withdrawn nearly ₹21,000 crore from Indian equities during the month up to September 21.

Still, the return of foreign buying was viewed positively because sustained institutional selling had been an important source of pressure on Indian stocks.

Global Markets Provide Additional Support

The domestic rally also received support from international markets.

Asian benchmarks including South Korea's Kospi, Japan's Nikkei 225, Shanghai's SSE Composite and Hong Kong's Hang Seng ended higher. European markets were also trading positively during India's session.

Global equities were helped partly by falling oil prices and improved sentiment toward risk assets. Reuters also reported that global stocks were benefiting from optimism around artificial-intelligence demand while lower oil prices provided some relief to bond markets.

For Indian investors, global cues matter because foreign portfolio flows and domestic market sentiment are closely connected to movements in US, European and Asian markets.

Which Stocks Led the Sensex Rally?

The gains were relatively strong among several large-cap stocks.

UltraTech Cement was the standout performer in the Sensex pack, rising 4.11%. HCL Tech, Eternal, Titan, ITC and Tech Mahindra were also among the prominent gainers.

HCL Tech gained more than 3%, while Eternal and Titan also advanced.

On the other side, Bharti Airtel, Power Grid, Infosys and Adani Ports were among the notable laggards.

The mixed performance shows that Monday's rally was not simply a broad-based surge across every major stock. Investors continued to differentiate between sectors and companies based on their individual factors.

Nifty Rises for Fourth Straight Session

The Nifty's fourth consecutive gain is an important short-term development.

The index had closed at 23,346.40 on Friday after gaining 75.80 points. Monday's additional 67.90-point rise took it to 23,414.30.

The recent recovery comes after Indian equities had experienced a prolonged period of weakness. Reuters described the market as recovering after a six-week decline, with bargain buying also contributing to the latest advance.

However, four consecutive positive sessions should not automatically be interpreted as confirmation of a sustained market uptrend.

Markets can rebound sharply after extended declines, particularly when investors who had reduced exposure begin buying again. The durability of the recovery will depend on factors such as foreign flows, crude prices, corporate earnings, global interest rates and geopolitical developments.

What Does Lower Crude Mean for Indian Companies?

The impact of oil prices can extend beyond the headline indices.

Lower crude can potentially benefit airlines, paints, chemicals, tyres, logistics and other oil-consuming businesses by reducing some input costs. It can also reduce pressure on transportation expenses across the economy.

For the broader economy, sustained moderation in oil prices could help contain inflationary pressure and reduce the strain on India's external balance.

But investors should avoid assuming that every company will immediately benefit. Companies have different cost structures, pricing power and hedging strategies, while currency movements can also influence the effective cost of imported crude and other commodities.

The Key Risk: Oil and Geopolitical Uncertainty

The latest rally does not remove the risks facing Indian markets.

Oil prices remain highly sensitive to developments in the Middle East. Although crude fell sharply on Monday, geopolitical tensions remain capable of producing sudden price movements. Reuters reported that geopolitical uncertainty and global monetary tightening were still important considerations for investors.

A renewed rise in crude could put pressure back on inflation expectations, the rupee and corporate margins.

Foreign flows are another variable. The recent ₹599.54-crore FII purchase is encouraging from a sentiment perspective, but it needs to be viewed against the much larger selling seen across September.

What Should Investors Watch Next?

For the next few sessions, investors will likely focus on four major signals.

Crude oil: Whether Brent can remain near current levels or starts moving sharply higher will be important for India's macroeconomic outlook.

FII flows: A continuation of foreign buying would provide stronger evidence that overseas investor sentiment is improving. One session alone is not enough to establish a trend.

Global markets: US equities, bond yields and developments in Asia will continue to influence foreign flows and domestic risk appetite.

Nifty momentum: The Nifty's ability to sustain its recovery after four consecutive gains will be important for determining whether the latest move represents a short-term rebound or develops into a broader recovery.

Sensex and Nifty Outlook

The Sensex's 564-point jump and the Nifty's fourth consecutive gain show that investors have responded positively to easing crude prices, renewed institutional buying and stronger global market cues.

But the rally comes against a backdrop of recent market weakness, elevated geopolitical uncertainty and substantial foreign selling earlier in the month. That makes the sustainability of the recovery more important than Monday's single-session gain.

For investors, the key things to monitor are crude oil, FII flows, global bond yields, geopolitical developments and the Nifty's ability to hold its recent gains.

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This article is for informational and educational purposes only and should not be considered investment advice.