Get detailed insights into the trading activity of FIIs and DIIs under both the cash and derivative segments of the Indian stock market here. What is FII & DII Data? FII data refers to the trading actions conducted by Foreign Institutional Investors (FIIs). FII DII Data: Real-time updates on trading activities of Foreign Institutional Investors (FIIs) and Domestic Institutional Investors (DIIs) in the Indian share market. Moneycontrol.com presents daily trends data for today`s Foreign Institutional Investors (FII) and Domestic Institutional Investors (DII) trading activity in Cash, Futures and Options (F&O) &... What is FII & DII trading activity? It tracks the buying and selling by Foreign Institutional Investors (FIIs) and Domestic Institutional Investors (DIIs) in Indian markets.