Amazon and Walmart marketplace expansion into eBay's historical strengths (refurbished electronics, collectibles), leveraging Prime membership and fulfillment infrastructure to compete on convenience
Generational shift away from online auctions toward fixed-price instant gratification models, reducing eBay's differentiation as younger consumers prefer streamlined Amazon/Shopify experiences
Regulatory scrutiny on marketplace liability for counterfeit goods, potentially forcing expensive authentication infrastructure scaling beyond current luxury/sneaker programs
Vertical-specific competitors (StockX for sneakers, Reverb for musical instruments, Bring a Trailer for classic cars) fragmenting enthusiast categories with superior user experiences
Google Shopping and social commerce (Instagram/TikTok Shop) disintermediating product discovery, reducing eBay's SEO-driven traffic acquisition advantages
Debt/Equity of 1.49x with $8.5B+ debt creates refinancing risk if credit spreads widen, though strong FCF ($2.0B annually) provides 4-year payback capacity
Current Ratio of 0.92x indicates working capital tightness, though marketplace model requires minimal inventory investment and operating cash conversion remains robust at 23% of revenue
StructuralCompetitiveBalance Sheet