3 . Using the prices below ( which are closing prices on 9 / 13 / 02 were taken from the WSJ on 9/ 16/02 ) verify that put - call parity holds for the December 02 Fold options on futures with a strike equal to $320 . The options expire on 1 1 / 21 /02 ( expiration dates for the options are available from* the New York Mercantile Exchange web site ( http : / / www . nymex . com / ) . On 9 / 13/ 02 , the cold futures price at the close was 318. 10 and the 3 month I - Bill rate was 1. 645%/} . GOLD ( CMX ) TOO troy OUNCES ; $ per troy OUNCE Strike Calls Puts Price Oct NOV DEC Oct NOV DEC 310 7 1 1 . 1 13. 8 3 5. 7 315 2 B 1 1 . 3 4. 5 3. 2 320 5. 4 3 7. 5 10. 7 325 O 4. 2 6. 7 1 1 . 1 13.5 3.30 2. 0 5. 5 13 14. 8 17.4 GEE O 2 4. 7 18. 8 21.5 Estimated Volume Total : 13, 000 Volume for Thursday Calls 7, 275 | Puts 3. 8 8 : Open Interest for Calls 159, 767| Puts 71, 205