Describing market breadth in terms of volume for the NYSE or the Nasdaq. This is a figure composed of the net sum of the amount of volume flowing into up stocks minus the amount of volume flowing into down stocks at any given moment in each of the two respective markets. Often the advance declineThe advance decline line for the NYSE or Nasdaq. This is a figure composed of a net sum of the number of advancing stocks minus the number of declining stocks at any given moment in each of the two respective markets. line is also referred to as “breadth”, but ShadowTrader differentiates between the two by using two separate terms. Generally, the Breadth is more important than the advance declineThe advance decline line for the NYSE or Nasdaq. This is a figure composed of a net sum of the number of advancing stocks minus the number of declining stocks at any given moment in each of the two respective markets. line.