The Five Dumbest Things on Wall Street This Week

1. Organic Tripe

Whole Foods (WFMI Quote) has dug itself quite a hole.

The Austin, Texas, organic grocery chain doubled its stock-buyback plan Wednesday. CEO John Mackey said repurchases under the $200 million program are "in line with our goal of maximizing our returns on invested capital to our shareholders."

Returns could use some maximization about now. The buyback move came less than a week after Whole Foods warned that sales and earnings growth would slow sharply. Shares have lost a third of their value in 2006 after doubling over the previous two years. ...