Stock buyback is to boost the share price and make it an attractive investment. You could even see another dividend increase as well to help reduce some cash flow. Our PS is calculated above this line and its a great thing we calculate it using PTIX instead of profit, so they cant use the stock buyback against us.

On a different note:

Our scope is our livelihood. Without it we would be a holdings company full of multiple alter egos and jv partners. Delta pilots would only get flying if none of the other holdings could do it cheaper. No more racing to the bottom especially when times are the best they've ever been.