> it's probably the easiest expressed with some long dated ITM calls on MSFT
Just buy equity. No need to sidecar long vol in the middle of a resolving banking crisis.
> if MSFT actually has equity in OpenAI or if its just a "mutual partnership"
Yes, Microsoft are taking a significant stake in OpenAI. But it’s not equity, because OpenAI isn’t a corporation. (Partnership interests. Economically similar.)