Here is my updated (as of market close last Friday) analysis of the inflation-adjusted S&P 500 returns.

Source data is available from Standard and Poors (www.standardandpoors.com) and the Bureau of Labor Statistics ( href=”http://www.bea.gov“>www.bea.gov)

Peak to Valley loss for the S&P 500 from October, 2007 through January, 2009: -50.9%. Who was president then?

Clinton: 14.26%

Eisenhower : 13.38%

Obama: 13.15%

Kennedy: 11.10%

Bush I: 11.01%

Truman: 9.99%

Reagan: 9.51%

Roosevelt: 8.67%

Johnson: 7.16%

Carter: 1.20%

Nixon/Ford : −2.16%

Bush II: −5.18%

Hoover: −17.33%

Amazing! The president with the 3rd best annualized real return of the S&P 500 “under his watch” since the CRSP records begin in 1926 is OBAMA!!!!!  And he did much better than the GOP hero, Mr. Reagan did.

More importantly, in aggregate and individual­­ly, Republican presidents are TERRIBLE for the S&P 500.

Annualized, real return of the S&P 500 since 1926 under Democratic presidenci­­es: 9.57%

Annualized, real return of the S&P 500 since 1926 under Republican presidenci­­es: 3.85%

Moreover, 8 of the 10 WORST YEARS for the S&P 500 occurred under Republican Presidents .

The worst years are:

And then there’s this:  the ONLY presidents to ever see the S&P 500 lower after they left office than when they came in were Republicans.

Facts. You gotta love them. Unless you’re a conservative.