FPI vs DII: Who Moves the Indian Stock Market, and Why Foreign Selling Matters
Market reports often say that foreign investors sold while domestic institutions bought. Those two groups are FPIs and DIIs. Knowing who they are makes sense of headlines like India's longest weekly losing streak in 25 years.
What is an FPI (or FII)?
Foreign institutional investors (FIIs) are institutions based outside India that invest in Indian markets. Under current SEBI rules they are classified as Foreign Portfolio Investors (FPIs), Bajaj Finserv AMC explains. News reports still use "FII" and "FPI" for the same idea.
Examples of FPIs include global mutual funds and asset managers, pension and retirement funds, insurance companies, sovereign wealth funds and hedge funds. They must follow SEBI's registration, investment limit and disclosure rules.
What is a DII?
Domestic institutional investors are institutions registered in India that invest domestic money. Bajaj Finserv AMC lists Indian mutual funds, insurance companies, banks and financial institutions, and pension, provident and retirement trusts.
DIIs collect household savings, such as insurance premiums, systematic investment plans and retirement contributions, and invest them in markets.
How they differ
| FPIs | DIIs | |
|---|---|---|
| Money comes from | Outside India | Indian savings |
| What drives decisions | Global interest rates, currencies, risk appetite | Domestic growth, recurring inflows |
| Typical horizon | Often short to medium term | Generally longer term |
| Behaviour in a fall | Can pull money out quickly | Often keep buying through steady inflows |
These characterisations come from Bajaj Finserv AMC and describe tendencies, not rules.
The September 2026 picture
- FPIs sold about Rs 44,013 crore of Indian equities in September and were net sellers on 16 of 21 trading days, NDTV Profit reported. On September 30 alone they sold Rs 10,148 crore, the biggest single-day outflow in nearly six months.
- On that day, DIIs bought Rs 11,272 crore, according to the same report.
- Indian Express put FII selling at about USD 3.8 billion for the month, after two straight months of buying.
- Financial Express reported that foreign investors have sold Rs 2.15 lakh crore of Indian equities so far in 2026, more than all of last year's outflow of Rs 1.66 lakh crore.
Domestic buying has cushioned the fall, but it has not stopped it.
Why foreigners sell
Bajaj Finserv AMC says FPI flows vary with global interest rates, currency movements and international economic cycles. That fits what is happening now: US bond yields are near multi-year highs, the dollar is strong and the rupee is weak. See why the Fed raised rates and why the rupee is falling.
Selling by FPIs also adds to dollar demand, which pushes the rupee down, according to Financial Express.
What this means for you
If you invest through mutual funds or SIPs, your money is part of the DII flow. Bajaj Finserv AMC notes that investors are generally encouraged to follow their own financial plans rather than react to daily institutional flow data. Daily FII and DII data is published by NSE and BSE, and SEBI publishes periodic disclosures.
Facts checked October 2, 2026. Informational only, not investment advice.
Sources
- Bajaj Finserv AMC, "What are FII and DII?" (February 5, 2026): https://www.bajajamc.com/knowledge-centre/what-are-fii-and-dii-types-differences-market-impact
- NDTV Profit, "Indian Markets Log 8th Straight Weekly Decline: Six Factors" (October 1, 2026): https://www.ndtvprofit.com/markets/indian-markets-log-8th-straight-weekly-decline-six-factors-driving-the-worst-selloff-in-25-years-12125064
- Indian Express, "Sensex, Nifty Fall 1% as Losing Streak Hits 25 Years" (October 1, 2026): https://indianexpress.com/article/business/market/indian-stock-markets-worst-losing-streak-25-years-10902435/
- Financial Express, "Rupee ends at 96.31" (October 1, 2026): https://www.financialexpress.com/policy/economy/rupee-ends-at-96-31crude-oil-surging-yield-and-fii-selling-weigh-on-currency/4351635/