GameStop, the specialty retailer of video games, collectibles and electronics, has seen its shares decline roughly 28% since it first floated the eBay bid in May. retail locations to expand its physical presence in high-margin categories such as trading cards and collectibles. " GameStop has continued to build its position in eBay through share purchases and options, making it the second-largest holder behind Vanguard Group funds. The potential shift comes after GameStop announced on August 3 that it had agreed toprivately exchange approximately $1. 00% convertible senior notesdue 2030 and 2032 for shares of its Class A common stock.