A very constructive base building on NASDAQ:MASI for the last 7 months. * Decreasing volume during the base construction (Bullish) * Multiple candle stick demand tails in the last 7 months points to institutions stepping in to pick up more shares on any weakness (indicates demand to the stock even at these higher levels is well and strong). A strong daily close above $258 will signal the completion of the pattern and should set the stage to higher prices into uncharted territories.