How would you calculate the price of the stock given the put strike of 30 and a premium that was 2.31 but has increased to 3.18. The stock was trading at 42 and i know the answer is 26.82
When does the put expire?
Why not this way?
Value of put option = exercise price - stock price
3.18 = 30 - x?
hmm my calc it ignores time value