FIIs raise stake in over 300 companies in September quarter, reduce in over 500. Most companies in which foreign investors reduced stake are from the mid & smallcap segment. The list in which foreign investors raised their stake includes some of the marquee names like Bharti Airtel, Asian Paints, Bharat Electronics, ICICI Securities, SpiceJet, HUL, ACC, Wipro, etc. among others, according to data collated from AceEquity as on October 25.