Sebi’s new rules make MFs see red Front-running is the act of buying or selling a stock ahead of anticipated action by a fund manager. Impact cost is the cost incurred to execute a large buy or sell order.“We will be needed to rebalance our portfolios every six months to add or delete stocks to meet Sebi’s criteria. Daily market cap and portfolio holding data is in the public domain. Savvy traders might do front-running as they will be able to calculate which stocks are going to be added or removed. It will also result in a churn of portfolios and increase the impact cost, as most mid-cap schemes may exit a particular scrip at the same time,” said a chief investment officer with a leading fund house. According to the framework laid down by Sebi, MF industry body Association of Mutual Funds in India, or Amfi, will have to provide a ranking of stocks at the end of June and December, based on their average market cap on both the BSE and the National Stock Exchange. Fund managers wil