FIDELITY ADVISOR SERIES II ADV GRO OPP MUTUAL FUNDS USMF - What does FIDELITY ADVISOR SERIES II ADV GRO OPP MUTUAL FUNDS USMF mean? - What does FIDELITY ADVISOR SERIES II ADV GRO OPP MUTUAL FUNDS USMF stand for? - FIDELITY ADVISOR SERIES II ADV GRO OPP MUTUAL FUNDS USMF meaning