Not exactly apples-to-apples but in 2018 Amazon was $180B in net sales vs eBay $95B GMV.
So you're comparing Amazon sales to eBay market value (total stock price). Yeah, it's completely meaningless comparison [Edit: I was wrong, it's Amazon sales versus eBay's gross merchandise value but it's still entirely off as a comparison].
Btw, my quickly googled references show eBay's net sales as 10.75B and Amazon's at $141.92B, which is indeed a more than 10x relations (when I think all other statistics show Amazon an order of magnitude ahead, not that I initially made any strong assertions about this but anyone looking has notice Ebay's star fading).
My concern with the net sales comparison is that I think for eBay that only includes their fee, not the actual retail price of the goods, whereas for Amazon it is the entire price of goods sold. That to me seemed a much more apples-to-oranges comparison which is why I didn't cite it. I have no idea what's actually true. I would be interested if someone wanted to sort out the truth there but I hit my limit for how much more research I want to do.
So you're comparing Amazon sales to eBay market value (total stock price). Yeah, it's completely meaningless comparison [Edit: I was wrong, it's Amazon sales versus eBay's gross merchandise value but it's still entirely off as a comparison].
Btw, my quickly googled references show eBay's net sales as 10.75B and Amazon's at $141.92B, which is indeed a more than 10x relations (when I think all other statistics show Amazon an order of magnitude ahead, not that I initially made any strong assertions about this but anyone looking has notice Ebay's star fading).
[1]https://amigobulls.com/stocks/EBAY/income-statement/annual
[2] https://www.digitalcommerce360.com/article/amazon-sales/