options with same underlying and same strike price have different price. option price (premium) has two component: 1) intrinsic value 2) time value .
if options are of same underlying and same strike price have same same intrinsic value but the if the expiry of the options is different than they have different time value.So options with same underlying and same strike price have different premium. option pricing is also depends on the option type, if option type is call option it has different premium than put option.
Well this a good observation. Theoretically, Call premium is directly proportional to interest rate and put premium is inversely proportional to rate of interest so therefore At the ATM Delta of Call is always greater than premium of put option.
This message was edited 1 time. Last update was at 15/05/2013 13:26:33
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