CHK (Chesapeake Energy Corp.) was mentioned in an intelligent Seeking Alpha
blog post today. Although they recommend buying, they don't say exactly when to do so. By looking at the chart, it seems that it's near a top, while the intermediate-term trend is up. This stock has found meaningful tops in June and October, followed by meaningful drops of 18% and 12%, respectively. If the current resistance at 26.49 holds, a move down to the nearest support could be expected.
Shorting a stock in an uptrend is generally not a good idea. It may be wiser to wait for the next dip and go long.
Jan 3 UPDATE: today it closed at 26.51, just 2 cents above the resistance line set above. Will it break up or drop tomorrow?