Sorry if this is a stupid question - I've only seen options as a compensation mechanism. Can you buy options on the open market just like shares? If not, how do politicians end up with options?
The options contract market is massive, in the public markets they are fungible and actively tradeable. In private equity markets they are mostly limited to compensation mechanisms.
Not only can you buy options, you can also write the contract and sell it on the market.
https://www.investopedia.com/options-basics-tutorial-4583012