Nifty bulls are entering the October derivatives series with the benchmark facing a rare combination of technical damage, heavy foreign selling and bearish futures positioning. The index has just recorded its worst September derivatives series in 25 years, while FIIs have posted their biggest monthly outflow in six months.

At the same time, rollover data indicate that bearish positions have been carried into the new series, leaving Nifty perched near a long-term support zone last tested during the Covid crash.

Nifty closed out its worst September derivatives series in a quarter century as relentless selling dragged the benchmark to a key long-term support zone. The index fell 6.7% during the series, a decline last seen in September 2001, when it dropped 6.5%.

The September series saw Nifty lose more than 1,400 points. Elevated crude prices, a weak rupee, hardening bond yields and persistent foreign selling kept risk appetite under pressure.

The weakness has also extended beyond the monthly expiry. Nifty has ended seven consecutive weeks in the red and will record an eighth straight weekly decline if bulls fail to engineer a recovery this week. That would mark its longest losing streak since 2001, when the index fell for nine consecutive weeks.

Before this week, Nifty had recorded seven or more consecutive weekly losses only four times in the past 25 years—in 2020, 2008 and twice in 2001.

Foreign institutional investors ended a two-month buying streak in September, selling Indian equities worth 25,662 crore, their highest monthly outflow in six months.

The Nifty 50 and Sensex each fell about 5.7% in September, while FII outflows for 2026 crossed Rs 2.5 lakh crore, according to NSDL data. That puts foreign investors on track for record annual outflow.

“The 5.67% sharp correction in Nifty in September, so far, was triggered mainly by elevated crude and high US bond yields. The correction turned intense during the last few days when FIIs turned big sellers,” V K Vijayakumar, chief investment strategist at Geojit Investments said.

“In the context of the 10-year US bond yields hovering around 5.2%, this FIIs selling is a rational act,” he said.

Beyond higher crude prices and tighter global monetary policy, FIIs have shifted capital towards AI-heavy markets such as South Korea and Taiwan, contributing to record annual outflows from Indian equities.

Vijayakumar, however, said the correction had also created an opportunity for domestic investors. “Large-caps with good growth prospects have reached attractive valuations. This is a value buying opportunity,” he said, identifying financials, particularly large banks, capital goods, telecom and automobiles as segments offering good buying opportunities.

The September derivatives series saw broad-based selling and heavy bearish bets by overseas investors as nearly half of futures and options stocks ended with long positions unwound, while more than 40% saw a buildup of shorts.

Rollover data suggest that these bearish positions have been carried into October. Nifty rollovers stood at 74%, in line with the three-month average, while Bank Nifty’s 79% rollover was marginally above its average of 78%.

Nifty futures ’ open interest rose nearly 30% from the start of September, which IIFL Capital said suggested “heavy shorts”. Foreign institutional investors’ net index-futures shorts rose to about 267,000 contracts from 184,000 at the previous expiry, data from Nuvama showed.

ICICI Securities said FIIs’ net index-futures open interest was about 267,000 contracts, among the highest levels seen at the start of a series.

SBI Securities said Nifty futures ended the September series with a 6.56% loss. Rollover activity remained below average at 74.29%, compared with 77.39% in the previous series and a three-month average of 74.49%. The lower rollover pointed to a cautious undertone amid uncertainty and heightened volatility, it said.

The sharp decline has brought Nifty to its 200-week moving average, a long-term support level that has not been tested since the Covid crash.

Rupak De, senior technical analyst at LKP Securities, said the index had slipped to its 200-week moving average, currently placed at 22,600.

“A decisive break below this level could trigger a sharper correction in the market. However, if Nifty manages to hold above 22,600, a similar recovery towards the higher end could be expected,” De said. “Therefore, 22,600 will remain a crucial support level for Nifty. On the higher end, immediate resistance is placed at 22,800.”

ICICI Securities placed the 200-week exponential moving average at about 22,400 and said the level coincided with the 80% Fibonacci retracement of the preceding up move and a rising trendline support, creating a strong support confluence.

The brokerage said 82% of Nifty 500 stocks were trading below their 50-day simple moving averages, indicating a significant deterioration in market breadth. It added that Nifty’s daily RSI, at about 27, was showing positive divergence, while the weekly stochastic oscillator was in an oversold zone—conditions that could support an intermediate technical pullback.

For a meaningful recovery to take shape, Nifty needs to reclaim and close above the previous week’s high of 23,080, a level it has failed to surpass for seven weeks, ICICI Securities said.

The technical setup, therefore, leaves October finely balanced. A hold above the long-term support zone could trigger a recovery, while a decisive break below it would strengthen the case for a sharper correction. Vijayakumar said a correction in crude prices could trigger a rally, with large-cap market leaders potentially leading the rebound.