Lets say the market is at equilibrium meaning the ratio of advancers/decliners is equal to the ratio of volume of advancers/decliners. Now if the market moved up AND we noticed the volume of advancing stocks are getting a bigger chunk of the volume meaning the TRIN is going down below 1 what does this really mean? Does this mean traders are ignoring weak stocks and buying strong stocks? Why would that happen anyway? If smart money thought the market was going up why would the weak stocks be left out in terms of volume?