Updated: Dec 3, 2020
Merrimack Pharmaceuticals has a strong bearish signal in place as the chart is over extended. A short signal has now been confirmed on the 15 minute chart at 7:30.
If you're bullish. Use the 15 minute chart, a have range of 11 set for confirmation of exit strategy. If you're bearish.
Use the 15 minute chart, a have range of 8 set for confirmation of short strategy. News Nov 27 - Insider Purchase Extends Merrimack Pharmaceuticals Positive Trend (link)