Sales Trends – eBay

• Data includes:
  • Sales volume for the first half of 2025 – also broken down by month
  • Monthly $ and % change
  • Quick filtering by category
• The high-level goal is to provide:
  • Context on market trends
  • Visibility into where collector and investor $ is moving in or out of the market
  • Insight into collectibility relative to other players:
    • Across rookie classes – e.g. SGA v Jokic v Giannis v Wemby
    • Across eras – e.g. Mantle v. Griffey Jr v. Ohtani
    • Across categories – e.g. Mahomes v LeBron
• Other notes:
  • All data is sourced via eBay
  • If something looks off, please let us know at data@gemrate.com
  • For more details on our approach, please see the methodology notes here