ED, Edward Lifescences Corp. - Trailing Stop, RR, %Profitability

EW
Does the technical analysis work?
Look at this!
The important thing is to let the profits run and quickly cut the losses when the trend turns against you.
How would your account behave after 100 trades if 6/10 make a loss and 4/10 make a profit? The answer in the Risk Reward is how much you earn when the trade makes a profit, and that's where the difference is made, i.e. compensating for all losses and creating profits on the long run.
In addition to this, you must also decide on risk management so that your maximum exposure is appropriate for your risk profile, and does not result in heavy drawdowns to suffer and possibly irrecoverable.