virtus77Welcome to Virtus Investment Partners. Virtus Investment Partners (NYSE: VRTS) is a distinctive partnership of boutique investment managers, singularly committed to the long-term successMailing Addresses. Mutual Funds Virtus Funds P.O. Box 534470 Pittsburgh, PA 15253-4470. Overnht Mailing Address Virtus Funds Attn. 534470 AIM: 154-0520