755 ILCS 5/5-2

Situs of personal estate of nonresident decedent or missing person.) For the purpose of granting administration of both testate and intestate estates of nonresident decedents or estates of nonresident missing persons, the situs of tangible personal estate is where it is located and the situs of intangible personal estate is where the instrument evidencing a share, interest, debt, obligation, stock or chose in action is located or where the debtor resides if there is no instrument evidencing the share, interest, debt, obligation, stock or chose in action in this State.