A couple of others I can think of:

  • Crypto-boom of 2016ish: GPUs/mining rigs
  • LLM/AI hype nowish: User generated data
  • 90’s dotcom bubble: Server space
  • bradorsomething@ttrpg.network
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    3 months ago

    In the stock market, there are groups called market makers, that actually buy and sell the stock. They are required to buy and sell, but they maintain price neutral positions and collect a margin on each sale.