The stock market is crazy and it doesn’t always act rational. Now that I said this, I think the reason is more a question of Chinese vs US technical superiority. In theory, China has no access to the high technology AI chips from NVIDIA, due to sanctions. This must mean that Deepseek was developed with cheaper chips, and NVIDIA chips are not necessary for training LLMs.

Almost everything on Amazon you can also find on eBay. Sometimes it is a couple of bucks more expensive, but it’s usually due to shit like this. Haven’t bought on Amazon for 4 years now.