FII/DII activity: what the daily data means (2026)
FII/DII activity is the daily scoreboard of how India's two biggest classes of institutional investors traded. FIIs are foreign investors and DIIs are domestic institutions, and the daily figure shows how much each group bought and sold in the cash market, and which way the net flow went. The NSE publishes it as a provisional figure after each close. Read on 18 September 2026, the NSE's report for 17 September 2026 showed FII/FPI gross buys of 8,761.71 crore rupees against sells of 11,970.47 crore, a net of minus 3,208.76 crore, while DIIs bought 14,105.01 crore against 10,487.26 crore sold, a net of plus 3,617.75 crore. It is one of the most watched numbers in the Indian market, and also one of the most misread.
Definition
FII/DII activity
is the daily net buying or selling by foreign portfolio investors (FIIs) and domestic institutions (DIIs) in the Indian cash market. The exchanges publish a provisional net figure after each close, computed as gross buys minus gross sells for each group, showing which group added money and which pulled it out that day. Source: NSE and BSE daily reports.
What is FII/DII activity, and who are the FIIs and DIIs?
FIIs are foreign portfolio investors: overseas funds, pensions, and asset managers that buy Indian listed securities. SEBI folded the old FII label into the broader FPI (Foreign Portfolio Investor) framework in 2014, so FII and FPI now point to the same group even though daily reports still use FII. The FII vs FPI page has the history.
DIIs are domestic institutions: Indian mutual funds, insurance companies, banks, and pension or provident funds. They are the home-grown counterweight, and on many days when FIIs sell, DIIs buy, or the reverse. The 17 September 2026 figures above are one such day.
Where does the daily number come from?
After the market closes, the NSE and BSE release provisional net figures for FII and DII activity in the cash segment. Provisional is the key word: the number can be revised, and the final, more detailed picture comes later. For FPIs, that picture is built from trades that custodians report to the depositories on a T+1 basis, the same feed SEBI uses to monitor foreign investment limits (SEBI Master Circular for FPIs dated 30 May 2024, paragraph H of the limit monitoring section). Most of the "FII sold X crore today" headlines quote the provisional cash-market figure.
Net minus 3,208.76 crore rupees
Provisional FII/FPI cash-market activity on the NSE for 17 September 2026: gross buys 8,761.71 crore, gross sells 11,970.47 crore. DIIs were net buyers of 3,617.75 crore the same day
Source: NSE FII/DII trading activity report, read 18 September 2026
How to read FII/DII activity without over-reading it
The daily number is easy to find and easy to misuse. A few guardrails.
- One day is noise. Net flows swing with expiry, index rebalances, and large one-off trades, including block deals that print in a single window. The multi-week trend carries more signal than a single session.
- Provisional is not final. Early figures get revised, so note whether you are reading the provisional or final number, and the date it covers.
- Cash is not the whole story. The headline figure covers the cash segment, not derivatives, so it is a partial view of institutional positioning.
- Flows are not holdings. A net figure tells you the day's direction, not what any FPI owns. For the stock-level picture, the quarterly shareholding pattern is the record: see how to check FPI holdings in a stock.
- Pair it with context. FII flows read differently against a rising rupee than a falling one, and a stock near its foreign investment limit reads differently again: see what the FPI red flag list is.
Where to follow FII/DII activity daily
The NSE's FII/DII report and the BSE's equivalent are the primary sources, and both are free. For the routine of pulling them, and the sector-level fortnightly data the depositories add, see how to track FII/DII activity daily and how to track FPI flows by sector. Flock records the daily FII and DII activity from the exchange disclosures, dated and linked to the source, so you can follow the trend rather than react to a single day. What it means for your own decisions is your call to make.
Frequently asked questions
What does FII/DII activity mean?
It is the net buying or selling by two groups of large investors on a given day. FIIs (foreign portfolio investors) and DIIs (domestic institutions such as mutual funds and insurers) report their gross buys and sells in the cash market, and the net figure shows which way each group leaned. Source: NSE and BSE daily FII/DII trading activity reports.
Where does the daily FII/DII data come from?
The NSE and BSE publish provisional net cash-market figures for FIIs and DIIs after the close each trading day. The NSE's report is titled as provisional. More detailed and final figures come from the depositories, which record FPI trades reported by custodians, and from SEBI. Source: NSE FII/DII trading activity report; SEBI Master Circular for FPIs dated 30 May 2024.
What is the difference between FII and FPI?
They refer to the same kind of investor. SEBI merged the older FII category into the broader Foreign Portfolio Investor (FPI) framework in 2014. Most daily data still uses the label FII, or FII/FPI, but the official term is FPI. Source: SEBI (Foreign Portfolio Investors) Regulations, 2014 and 2019.
Is a single day of FII selling meaningful?
On its own, rarely. One day's net figure is noisy and often provisional. The trend over weeks, read alongside index moves and the currency, carries more information than any single session. It is data drawn from the exchange record, not a recommendation. Source: NSE and BSE daily FII/DII reports.
Flock tracks these filings, sourced, dated, and linked back to the original. See what smart-money entities disclosed, without the guesswork about what it means.
Disclosures shown are public regulatory filings. Data may be delayed or incomplete. Smart-money entities may no longer hold positions shown. Not investment advice.