It depends on the stock and what each individual holder is prepared to sell for. So it's exactly the same. In a corporate buyout the individual sellers typicall

It depends on the stock and what each individual holder is prepared to sell for. So it's exactly the same. In a corporate buyout the individual sellers typically agree on a sale price, but that's a contract on top of the market. Without that in play you'd be subject to the same unknowns and market cap wouldn't guarantee any buyout price. Hostile takeover is one example.