At this point as an investor the question becomes do you lock in profits or do you hold for a longer term gain?  One strategy you could have used was to sell half of your initial position near the 38.2% Retracement Level and then continue to hold onto the other half and raise your trailing Stop to just above the original Pivot Point which was around $28.  That way if AMZN had sold off down the road you still would have broke even or had a small gain in the other half of your position.  

Meanwhile as AMZN traded sideways near its longer term $38.2% Retracement Level it formed another "Cup and Handle" pattern.  In this case the next potential target price for AMZN would have been at its 50% Retracement Level near $60.  Once AMZN broke out in late September it quickly rose up to its 50% Retracement level before stalling out again (point B).  At this point if you had invested in AMZN when it originally broke out in the upper $20's you could have sold the remaining half of your position for a nice profit.  If you had missed the first breakout in the upper $20's and took a new position after AMZN broke out of its second "Cup and Handle" pattern then you could have sold half your position near $60 and then placed a trailing Stop just above the Pivot Point which was near $48.  In the future if AMZN can break above its 50% Retracement Level then there is probably a good chance it will rise up to its longer term 61.8% Retracement Level near $72 (point C).  This is where I would sell the rest of my position if AMZN did rise up to the lower $70's down the road.

Knowing where specific longer term Retracement Levels reside can give investors insight into a stocks potential target price after it breaks out of a favorable chart pattern such as the "Cup and Handle".