Prediction Markets Update (September 25, 2008)

The 2008.PRES.OBAMA Intrade contract now trades at 56.7, whereas the 2008.PRES.McCAIN Intrade contract is currently trading at 43.5 (compared with 54.6 and 44.9 respectively as reported on yesterday’s update).

The state-by-state contracts continue to imply that Mr. Obama currently holds a 269-227 “lead” over Mr. McCain (based upon my cutoff price point of 55 for allocating Electoral College votes). As was the case yesterday, I continue to put Nevada (5 Electoral College votes), New Hampshire (4 Electoral College votes), Ohio (20 Electoral College votes), and Virginia (13 Electoral College votes) into the “swing” state category based upon this criterion.

FiveThirtyEight.com currently gives Mr. Obama a 307.8 to 230.2 advantage over Mr. McCain.

Addendum: September 25, 2008 Electoral College Vote allocation

Barack Obama (269): California (55), Colorado (9), Connecticut (7), Delaware (3), District of Columbia (3), Hawaii (4), Illinois (21), Iowa (7), Maine (4), Maryland (10), Massachusetts (12), Michigan (17), Minnesota (10), New Jersey (15), New Mexico (5), New York (31), Oregon (7), Pennsylvania (21), Rhode Island (4), Vermont (3), Washington (11), and Wisconsin (10)

John McCain (227): Alabama (9), Alaska (3), Arizona (10), Arkansas (6), Florida (27), Georgia (15), Idaho (4), Indiana (11), Kansas (6), Kentucky (8), Louisiana (9), Mississippi (6), Missouri (11), Montana (3), Nebraska (5), North Carolina (15), North Dakota (3), Oklahoma (7), South Carolina (8), South Dakota (3), Tennessee (11), Texas (34), Utah (5), West Virginia (5), and Wyoming (3)

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