Each candle on the following chart of the SPX represents a period of one quarter. Much of the action on the current Q2 candle has occurred above the top one-quarter of Q1, and price is hovering above its close of 2362.72.
The Momentum indicator has been sluggish since July 2014 on this timeframe, likely caused by the rise in volatility, large price swings and inability of this index to gain traction, until its breakout two years later.