What the market tells us about confidence in administrations

September 1980 to March 1981, Dow up 3.43%:


September 1984 to March 1985, Dow up 5.16%:


September 1988 to March 1989, Dow up 9.93%:


September 2000 to March 2001, Dow up 5.01%:


September 2004 to March 2004, Dow down 6.87%:


September 2008 to March 2009, Dow down 40.03%:


Change!

Update: Did Obama cause the stock slide?: Business Week thinks so.