Does it pay to trade when the Morningstar Rating of a mutual fund changes? - The Skilled Investor's FUND AUTHORITY SCORES fo... Does it pay to trade when the Morningstar Rating of a mutual fund changes? - The Skilled Investor's FUND AUTHORITY SCORES for Mutual Funds and ETFs > Mutual Fund Rating Services - Morningstar Star Ratings - Financial Articles, A study found that active trading when Morningstar Ratings changed lead to positive pre expense returns at all levels of star ratings changes. However, the “excess” returns to these strategies did not hold up once associated expenses were considered. Expenses for monitoring, trading, and paying taxes and loads easily outweighed any positive returns to these strategies. in Public bookmarkswith changesfundmorningstarmutualpayratingskilledtrade