he certainly didn't hurt his stock with his latest effort against the Cubs :
Cole Hamels no-hits Cubs, ups trade appeal
The impossible has been made possible for a third time in 2015: Cole Hamels threw his first career no-hitter against the hapless Chicago Cubs on Saturday afternoon. The thought of a perfect game left after the first at-bat, when Hamels walked Cubs outfielder Dexter Fowler to kick off the first inning, but from then on, no batter lasted more than six pitches against the left-hander. Hamels’ 129-pitch feat was the 13th of its kind in Phillies’ history, and made even more remarkable by breaking a 7,931-game streak by the Chicago Cubs, the longest period without a no-hitter in Major League Baseball.
Usually, a pitcher who crowns his major league career with a no-hitter or a perfect game sticks around long enough to reap the benefits -- a plaque, a statue, even a Supreme Court celebration. Hamels’ situation is unique. As John Stolnis of The Good Phight pointed out, Elias Sports Bureau says that there has never been a pitcher who threw a no-hitter and made his next big league start for a different team.
One thing’s for sure: Hamels’ trade value received a nice boost after Saturday's performance.