So if the strike is K, and the the stock is zero. the final payout is K-0 = infinity?
Here is the definitive answer: https://www.optionsanimal.com/what-happens-value-option-when-company-declares-bankruptcy/
So I guess the put option would just reach its maximum value which is also called its intrinsic value (K - 0) and I guess since that's the max. that anyone would get so nobody would be willing to pay for the premium over that amount to buy it so no "infinity" scenario then. Hmmn... Never thought of that.
