PRINCIPAL FDS INC LARGECAP GROWTH FD I MUTUAL FUNDS USMF - What does PRINCIPAL FDS INC LARGECAP GROWTH FD I MUTUAL FUNDS USMF mean? - What does PRINCIPAL FDS INC LARGECAP GROWTH FD I MUTUAL FUNDS USMF stand for? - PRINCIPAL FDS INC LARGECAP GROWTH FD I MUTUAL FUNDS USMF meaning