The FII DII data 27 October 2026 shows foreign institutional investors (FIIs) bought a net ₹4,240 crore of Indian shares on Tuesday, their biggest buying day of October, while domestic institutions (DIIs) sold a net ₹1,250 crore, as per provisional NSE figures. Yet Nifty barely moved, closing at 22,749.75. Here is what the flip means, why the index stayed flat and what could decide the next move.

Table of contents

• FII DII Data 27 October 2026: The Numbers
• Why Nifty Stayed Flat Despite Big FII Buying
• How to Read the Flip: A Worked Example
• FII DII Data 27 October 2026 in the October Trend
• Is FII Selling Over? Mistakes to Avoid
• What to Watch Next: A Trader’s Checklist
• FAQs
• The Bottom Line

FII DII Data 27 October 2026: The Numbers

NSE releases provisional cash market figures for FIIs (also called FPIs) and DIIs (mutual funds, insurers and pension funds) around 6 PM IST. “Net” is gross buying minus gross selling. Tuesday’s numbers, as reported by CNBC TV18, were as follows.

This fully reverses Monday, when FIIs sold ₹1,462.49 crore and DIIs bought ₹2,609.57 crore. It is also the first DII selling day since 16 October. You can compare every session on our FII DII data today page. So why did the index not rally on this much foreign money?

Why Nifty Stayed Flat Despite Big FII Buying

Sensex ended at 73,598.67, down 8.08 points, and Nifty closed at 22,749.75, down 3.45 points, according to ThePrint (PTI). The flat close hid a split market. Nifty Bank fell 392 points to 53,975, and IT stocks saw profit booking. State Bank of India (−1.63%), TCS (−1.50%) and Asian Paints (−1.94%) were among the biggest Nifty losers, per HDFC Sky.

Nifty Midcap rose about 1% and Nifty Smallcap about 2.7%, with 2,807 stocks advancing against 1,334 declining. Tata Consumer Products jumped 6.78% after its Q2 results and Bharti Airtel gained 3.20%. Ajit Mishra of Religare Broking said the lack of a clear trend “reflects continued uncertainty following the recent market correction.”

Crude and the Fed kept a lid on gains

Brent crude stayed near $116 a barrel, close to a six-month high, after attacks on Saudi energy infrastructure, and traders held back before the US Fed decision on 28 October. The next section shows how to measure the balance of flows.

How to Read the Flip: A Worked Example

Three simple ratios show how strong the move was.

FII DII data 27 October 2026: three ratios

1. FII buy-to-sell ratio = 24,517.65 ÷ 20,277.26 = 1.21. On 26 October it was only 0.86.
2. FII gross activity = 24,517.65 + 20,277.26 = ₹44,794.91 crore, up about 123% from ₹20,112 crore on Monday. DII gross activity rose only about 1.5%, to ₹32,656 crore.
3. FII share of institutional trading = 44,795 ÷ (44,795 + 32,656) = about 58%, against about 38% on Monday. Foreign funds drove the day.

Put together, the combined institutional flow was a positive ₹2,990 crore. On a normal day that would lift prices. That it did not suggests the buying was spread across the wider market, while index heavyweights in banking and IT faced steady selling.

FII DII Data 27 October 2026 in the October Trend

FIIs had only three buying days in October before Tuesday, and none above ₹1,166 crore. The month also includes a ₹12,944 crore sell-off on 8 October. One strong day has cut the monthly outflow by less than a tenth. HDFC Sky put 2026 FPI selling at a record $32.56 billion before Tuesday. For the full picture, see our FII DII data October 2026 report and the long-run FII DII monthly data. Note that on 16 October FIIs also bought while DIIs sold, and foreign selling returned the next session.

Is FII Selling Over? Mistakes to Avoid

It is too early to say. A large buying day can come from one-off trades, such as block deals, rather than a change of view. No confirmed reason for Tuesday’s buying has been reported, so treat it as a signal to track. Avoid these errors:

• Treating provisional data as final. NSDL’s final FPI figures, due on the next working day, can differ from NSE’s 6 PM numbers.
• Ignoring derivatives. FIIs can buy cash shares and still hold bearish index futures. Check the FII DII F&O data and participant-wise open interest.
• Reading DII selling as weakness. One day of DII profit booking after a long buying run is normal.

With that in mind, here is what we will watch over the coming sessions.

What to Watch Next: A Trader’s Checklist

1. US Fed decision, 28 October. The Fed announces at 2 PM ET (11:30 PM IST), with the fed funds range at 3.75% to 4.00% after a September hike. A hawkish message could push US yields up and pull foreign money back out, as we explain in our US bond yield impact on Indian market analysis.
2. Brent crude. Oil near $116 raises India’s import bill and weighs on the rupee.
3. The rupee. A steadier rupee lowers currency losses for FIIs.
4. The next three to five sessions of flow data. Three or more buying days in a row, confirmed by NSDL, would be a real change. Also track FII index option positions on our FII options activity tracker.

The FAQs below answer the questions readers ask most.

FAQs

The Bottom Line

Tuesday’s FII DII data is the most encouraging foreign flow number of the month. FIIs bought more in one session than on any other October day and traded twice as much as on Monday.

It is still one day against a month of heavy selling, and the Fed decision comes later on 28 October. The practical step: after 6 PM each day this week, check whether the FII buy-to-sell ratio stays above 1, and confirm with NSDL’s final numbers before treating this as a turn.

Sources: NSE FII/DII trading activity (27 Oct 2026); CNBC TV18 via TradingView (27 Oct 2026); ThePrint / PTI (27 Oct 2026); HDFC Sky market close report (27 Oct 2026); NiftyTrader and Quantsapp (October 2026 daily data); Admiral Markets Fed preview (9 Oct 2026).

Disclaimer: This article is for educational purposes only and is not investment advice. Please consult a SEBI-registered advisor before making investment decisions.