The largest area of volume on the Market Profile coincided with the top of the Value Area High. Price subtly dipped into the POC before reversing up on a classic technical Wyckoff 'Spring'. Person's PPS issued a buy arrow simultaneously on the Advance/Decline, Up/Down Volume and TICK at 13:30hrs. The MA's were rising at a nice angle at this same point and pushed the indicators higher into the close. The areas on the TPO profile where there had been thin trading were easily migrated through as price rallied to highs at the close.