The basic situation is that if OpenAI announces a big partnership with a public company, that company’s stock will go up. Today OpenAI announced a deal to buy tens of billions of dollars of chips from Advanced Micro Devices Inc., and AMD’s stock went up. As of noon today, AMD’s stock was at $213 per share, up about 29% from Friday’s close; it had added about $78 billion of market capitalization. I don’t know. This is not, you know, correct in any respect. (In particular, the total cost of the deal was not disclosed, “but AMD said it costs tens of billions of dollars per gigawatt of computing capacity”; I’m using the probably-too-low $78 billion number for narrative convenience.) But there is some crude justice to it. This deal between OpenAI and AMD was obviously going to create a lot of stock-market value: The announcement of the deal would predictably increase the market value of AMD, and it’s not like it decreases the market value of OpenAI commensurately.

Full analysis : A look at the OpenAI-AMD partnership, which added ~$78 billion to AMD’s market cap and shows OpenAI is good at deals; last week, OpenAI deals boosted SHOP and ETSY.