Doug Ross has some fun with charts, correlating the stock market and the market in electoral politics on Intrade. What caused the market plunge? Doug charts, you decide.

Examples:

The blue line represents the Obama futures while red represents McCain [on Intrade betting on the election]....  By late September it was increasingly clear to Intrade.com bettors that Obama was going to win the election. From 9/28 to 9/29 Obama's Intrade price went from 57 to 61, which represented a huge jump.



Note what happened to the stock market at nearly the exact same time. Around September 29th the market began its collapse.



What happens after Election Day speaks for itself.

See also Obama proves to be stock market poison.