A portable display stand for the display of merchandise having a hinged vertical support panel subassembly, including top and bottom panel segments, to reduce size and promote portability. Slideable pin locks slide out from a disengaged position and lock in the engaged position, to stabilize the top and bottom panel segments relative to each other, for assembly. A central post with attachment rings allows for attachment of 2, 3, or 4 support panel subassemblies arranged radially around the central post.