GameStop's rejected $55.5 billion unsolicited bid for eBay in May 2026 remains the dominant factor anchoring trader sentiment at a 93.5% implied probability of no acquisition. eBay's board dismissed the cash-and-stock proposal as neither credible nor attractive, citing financing uncertainties and execution risks for the smaller retailer despite GameStop's roughly $9.4 billion cash position and TD Securities commitment for up to $20 billion in debt. GameStop has accumulated a 9.8% stake in eBay and faces a key October 30 warrant expiration that could influence leverage, yet the substantial size mismatch and lack of renewed engagement sustain the consensus. A successful proxy contest or revised offer with stronger third-party backing could still alter the trajectory before resolution.