 Jeremy Grantham Trades, Portfolio, board chairman of Boston-based Grantham Mayo Van Otterloo, disclosed last week that his firms top five trades during the second quarter included new positions in Constellation Brands Inc. STZ , Financial and Nuance Communications Inc. NUAN , Financial, a position boost in Kansas City Southern KSU , Financial, a reduction in Charles Schwab Corp. SCHW , Financial and the closure of its holding in Inphi Corp. IPHI. 