Marek, Ludwig. "Kaiser's Amana Income Beats S&P 500 by Following Islamic Law." Bloomberg News, July 7, 2005.

Report on the Amana Income Fund performance in the 2004-2005 timeframe. Overweighted in energy and holding a zero weighting in financials, the fund rose 25% compared with the 9% return of the S&P 500, and -3.3% for the average SRI fund tracked by Bloomberg. From 1995-1999, however, the fund averaged 17% annual returns, well behind the S&P 500's 28%. Fund manager Nicholar Kaiser is quoted as saying this was "the cost of being a Muslim... If you want to invest socially responsibly, there are costs involved for the performance."