IMOS has closed above $24 for the last 12 weeks, so I would put a worst case stop just below $24 because that would disprove my buy thesis and I'd want to be out of the stock. I think half position stop at $25.3 and half position stop at just below $24 makes sense in this market and lowers max loss to 8%.
The measured target is the range of base added to breakout.
IMOS is a Semiconductor and it's surprising it has taken this long to breakout, I can''t find anything wrong with it, looks like a good catch up trade with attractive risk/reward.