KEY TAKEAWAYS

FII = Foreign Institutional Investor. DII = Domestic Institutional Investor.
FPI (Foreign Portfolio Investor) is the current SEBI category that FIIs were folded into in 2014.
Net flow = value bought − value sold in the NSE cash market for one session, in Rs crore.
It is a record of a past session, not a signal. DalalOS never turns it into a buy or sell call.

FII full form

An FII, or Foreign Institutional Investor, is an institution established outside India that invests in Indian listed securities. Typical examples are overseas pension funds, sovereign wealth funds, insurers and asset managers. They invest on behalf of many underlying investors rather than for a single person, which is why their trades are large enough to be disclosed and followed daily.

A DII, or Domestic Institutional Investor, is the Indian counterpart: an institution based in India that invests in the market. The group NSE reports under this heading typically covers mutual funds, insurance companies, banks and other domestic financial institutions and pension funds.

FII, DII and FPI at a glance

FII, DII and FPI: full form and who each term covers.
Term	Full form	Who it covers
FII	Foreign Institutional Investor	Overseas institutions investing in Indian securities. The older term, still common in everyday use.
FPI	Foreign Portfolio Investor	The SEBI registration category for overseas portfolio investors, which absorbed FIIs, their sub-accounts and qualified foreign investors in 2014.
DII	Domestic Institutional Investor	Indian institutions investing in the market: mutual funds, insurers, banks, pension funds and similar bodies.

FII vs FPI: why both names appear

Since SEBI's Foreign Portfolio Investors Regulations, 2014, overseas investors register as FPIs. "FII" survived as the everyday label, and NSE's daily disclosure is headed FII/FPI. On DalalOS, "FII" in the daily flow data means this FII/FPI group as NSE reports it.

How FII and DII net flow is calculated

After each trading session NSE publishes, for each group, the value of securities bought and the value sold in the cash market. Net flow is the difference:

Net flow = buy value − sell value

Computed per group and per session, in Rs crore. Positive means the group bought more than it sold that day. Negative means it sold more than it bought. Sums over several sessions are plain addition of the daily nets.

A worked example from the latest session NSE has disclosed, 26 Oct 2026:

FII/FPI: bought 9,324.90 Cr, sold 10,787.39 Cr. Net = 9,324.90 − 10,787.39 = −1,462.49 Cr.
DII: bought 17,389.57 Cr, sold 14,780.00 Cr. Net = 17,389.57 − 14,780.00 = 2,609.57 Cr.

Figures are as published by NSE (nse), provisional at first release and subject to revision by the exchange. This is arithmetic on disclosed numbers, not a view on direction.

Where to see the numbers

FII DII data today: the latest session and the recent daily table, with longer ranges and cumulative flow.
FII DII monthly data: month-by-month buy, sell and net totals summed from the daily series.
Sector-wise FPI investment: NSDL's fortnightly net investment by sector.
get_market_fii_dii_flow: the same data as a read-only MCP tool for your AI assistant.

Research and analysis only, not investment advice. DalalOS publishes raw disclosed data and mechanically-computed sums; it does not issue recommendations.

FAQ

Common questions

What is the full form of FII?: FII stands for Foreign Institutional Investor: a fund or institution based outside India, such as a pension fund, sovereign wealth fund or asset manager, that invests in Indian listed securities.
What is the full form of DII in the share market?: DII stands for Domestic Institutional Investor: an Indian institution that invests in the market, such as a mutual fund, insurance company, bank or pension fund.
What is the difference between FII and FPI?: FPI means Foreign Portfolio Investor. Under SEBI's 2014 regulations, foreign institutional investors, their sub-accounts and qualified foreign investors were brought into the single FPI category. People still say FII in everyday use, and NSE's daily disclosure is headed with both terms.
How is FII or DII net flow calculated?: Net flow for a session is the value the group bought minus the value it sold in the NSE cash market, in Rs crore. A positive net means the group bought more than it sold that day; a negative net means it sold more than it bought.
Is DII data included in FII DII data?: Yes. NSE publishes the FII/FPI and DII figures together after each session, which is why the two are almost always quoted as a pair. DalalOS shows both on the daily FII DII data page.
Does FII or DII flow tell me whether to buy or sell?: No. It is a record of disclosed transactions in a past session. DalalOS publishes raw figures and mechanically-computed sums only, never buy or sell calls, target prices or verdicts.

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