On Friday, Jan 6, 2011, the price of Google stock closed at $650.02. From the screen option chain shown. Why does the Jan 21 Call Strike Price of 280.00 showed a Change of -59.30? I would think that since the call is In The Money, it should still have a positive Change. Whereas the other Strike Price still showed a positive Change.
?....It appears that "235.70" trade was incorrectly entered for the 280-strike instead of the 380-strike.
The last trade was August 18, 2011. I think that the -59.30 is from about August 12 to August 18. August 12 being the previous last trade before August 18. http://finance.yahoo.com/q/hp?s=GOOG&a=07&b=10&c=2011&d=07&e=20&f=2011&g=d
The bid/ask is correct, and that's what matters. Last prices are often misleading, especially if there is little volume.