Even though NXPI is signalling a possible volume alert trigger this morning I consider the proper buy place was on 5/21/15. I posted This chart back then. NXPI is somewhat extended above the 50-day (red line) for my trading.

I monitor the volume alert trigger page during the day and inspect the possible volume alert triggers which are highlighted in green as shown in the second graphic.

Name:  NXPI.GIF
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Size:  212.6 KB

Name:  Volume Trigger Alert -2.GIF
Views: 160
Size:  280.3 KB