Indian Shares Set for Weak October as Shorts Rise

Indian equities are heading into October under pressure after a sharp September selloff, with Foreign Investors increasing bearish positions in index futures and brokerages warning that any near-term rebound may not necessarily signal a sustained recovery in market sentiment.

The Nifty 50 fell 6.7% during the September derivatives series, making it the weakest-performing major Asian benchmark during the period, while the Bank Nifty declined 5.7%. The derivatives data showed a broad reduction in bullish positions alongside a buildup of short positions as investors reacted to higher global bond yields, geopolitical uncertainty and continued foreign selling.

Foreign Investors Increase Nifty Short Positions

Data cited by Nuvama Alternative and Quantitative Research showed that foreign institutional investors’ net short positions in Nifty index futures increased to about 267,000 contracts at the September expiry, compared with around 184,000 contracts at the previous expiry.

The increase indicates a significant shift in positioning during the September derivatives series. Foreign investors also sold about $2.7 billion worth of Indian shares in the spot market during September, according to Reuters, marking their highest monthly outflow in six months.

The combination of cash-market selling and increased futures shorts points to a more defensive positioning among overseas investors as India enters the final quarter of 2026.

September Becomes a Difficult Month for Indian Stocks

The Nifty 50 declined 6.7% during the September derivatives series, while the Bank Nifty fell 5.7%. The declines came amid a broader deterioration in risk sentiment across Indian equities.

Higher US Treasury yields, elevated crude oil prices and geopolitical uncertainty have created additional pressure on emerging-market assets. Indian stocks have also faced sustained foreign outflows during the period.

Reuters reported that the September decline made the Nifty the worst-performing major Asian equity benchmark for the month.

Brokerages See Important Nifty Support Levels

Brokerages are closely watching the 22,350-22,500 area for the Nifty 50 as October begins.

IIFL Capital said the index could experience a technical rebound toward 23,300 if it approaches the 22,500 level. However, the brokerage also warned that a sustained break below 22,400 could expose the market to additional declines.

Nuvama Alternative and Quantitative Research identified a broader range of around 22,350 on the downside and 23,400 on the upside as important levels for the benchmark.

These levels represent technical observations from brokerages rather than guarantees about where the index will trade.

October Rebound Could Be Temporary

Some brokerages expect the possibility of a short-term recovery in October after the sharp September decline. IIFL Capital described the potential move as a technical rebound rather than evidence of a durable return to risk-on sentiment.

The distinction is important because markets can recover temporarily after a sharp decline even while underlying positioning remains cautious. With foreign investors carrying substantial short positions into the new derivatives series, sustained buying would be required to materially change the current positioning picture.

Nifty Futures Open Interest Rises Nearly 30%

Nifty futures open interest increased by nearly 30% from the beginning of September, according to IIFL Capital.

Open interest measures the number of outstanding derivatives contracts. A rise in open interest alongside falling prices can be associated with the creation of new positions, although open-interest data alone does not identify every participant’s strategy.

In the current market, brokerages have interpreted the increase as evidence of substantial short positioning as investors positioned defensively during the September decline.

October Rollover Data Shows Bearish Positions Carrying Forward

Rollover data from Ambit Capital, IIFL Capital and Nuvama indicate that some of the bearish positioning from September has been carried into the October derivatives series.

Nifty rollovers stood at 74%, broadly in line with the three-month average. Bank Nifty rollovers were at 79%, slightly above the three-month average of 78%.

Rollover data tracks positions carried from one derivatives series into the next. While the figures do not by themselves determine the market’s direction, the accompanying positioning data provide an indication of how investors entered the October series.

Broad Unwinding of Bullish Positions

Ambit Capital said the September derivatives series was characterised by broad-based selling and heavy bearish positioning among overseas investors.

Nearly half of the stocks in the futures and options universe experienced unwinding of long positions, while more than 40% saw a buildup of short positions, according to the brokerage’s analysis cited by Reuters.

This broad positioning shift suggests that the September decline was not limited to a small group of stocks. Instead, defensive positioning spread across a wider part of the derivatives market.

Domestic Investors Provide Some Support

Domestic institutional investors and retail participants have taken a different approach from overseas investors.

Nuvama said domestic institutional buying helped cushion some of the pressure created by foreign selling, while retail investors remained positioned long in stock futures.

This divergence between foreign and domestic positioning is an important feature of the current market. Strong domestic participation can help absorb some foreign selling, although the overall impact depends on the size and persistence of those flows.

Global Bond Market Pressure Adds to Concerns

The September selloff in Indian equities occurred against a difficult global bond-market backdrop. Rising government bond yields have increased borrowing costs and influenced asset allocation across international markets.

Reuters reported that global bonds were heading toward one of their most difficult months in years, with US Treasury yields reaching elevated levels. Higher yields can make developed-market fixed-income assets relatively more attractive and can contribute to capital outflows from emerging markets.

For India, this global pressure has coincided with foreign equity selling and concerns over the rupee.

Crude Oil Remains Another Risk Factor

Oil prices have also become an important factor for Indian markets because India is a major crude importer. Elevated oil prices can affect the country’s import bill, inflation expectations and corporate costs.

Recent geopolitical tensions in the Middle East have contributed to volatility in crude prices. Reuters reported that Indian shares were under pressure as oil prices and US Treasury yields increased amid uncertainty surrounding the conflict and peace efforts in the region.

Any sustained rise in oil prices could therefore remain an important variable for Indian equities during October.

What Could Shape Indian Markets in October?

• Foreign investor flows: Continued overseas selling could keep pressure on benchmark indices.
• Futures positioning: The high level of foreign index-futures shorts will remain closely watched.
• US bond yields: Further increases in Treasury yields could influence emerging-market capital flows.
• Crude oil prices: Higher energy costs could increase concerns over inflation and India’s external balances.
• Geopolitical developments: Changes in Middle East tensions could influence oil prices and global risk sentiment.
• Domestic institutional buying: Continued domestic demand could help absorb some foreign selling pressure.

Key Nifty Levels to Watch

Brokerages have identified 22,350-22,500 as an important support area for the Nifty 50 at the beginning of October. IIFL Capital has also highlighted 23,300 as a potential level for a technical rebound, while Nuvama sees 23,400 as an important resistance area.

A sustained move below 22,400 would be closely watched because IIFL Capital said it could open the way for additional weakness. Conversely, a recovery toward the 23,300-23,400 region would bring the market closer to the resistance levels identified by brokerages.

These are technical levels cited by market research firms and should not be interpreted as certain forecasts of future index movements.

Indian Stock Market Outlook for October

Indian equities enter October with a cautious positioning backdrop following the steep September decline. Foreign investors have increased index-futures shorts, rolled bearish positions into the new series and sold billions of dollars of Indian equities in the spot market.

At the same time, domestic institutional investors have continued to provide support, while some brokerages see room for a technical rebound after the September selloff.

The direction of the market will depend on whether foreign selling eases, global bond yields stabilise, crude oil prices remain manageable and geopolitical risks diminish. Until those factors become clearer, investors are likely to remain focused on the key technical levels and changes in derivatives positioning.

Frequently Asked Questions

1. Why could Indian shares face a weak October?

Indian shares enter October after a sharp September decline, with increased foreign investor short positions, substantial foreign selling, higher global bond yields and geopolitical uncertainty weighing on sentiment.

2. How much did the Nifty fall during the September derivatives series?

The Nifty 50 declined 6.7% during the September derivatives series, making it the weakest-performing major Asian benchmark during the period.

3. How much did Bank Nifty fall in September?

Bank Nifty declined 5.7% during the September derivatives series.

4. How large were foreign investors’ Nifty futures short positions?

Foreign institutional investors’ net Nifty index-futures shorts increased to about 267,000 contracts from approximately 184,000 contracts at the previous expiry, according to Nuvama data cited by Reuters.

5. How much did foreign investors sell in Indian shares in September?

Foreign investors sold about $2.7 billion of Indian shares in the spot market during September, according to Reuters.

6. What Nifty support levels are brokerages watching?

IIFL Capital and Nuvama have identified the 22,350-22,500 region as an important support area, while IIFL has specifically highlighted 22,400 as a level to watch.

7. What resistance levels are being watched for the Nifty?

IIFL Capital has identified 23,300 as a potential rebound level, while Nuvama sees 23,400 as an important resistance level.

8. Can domestic investors offset foreign selling?

Domestic institutional buying has helped cushion some of the pressure from foreign selling. However, the effect depends on the relative size and persistence of domestic purchases and overseas outflows.

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