Since I've been using NYSI and the NYMO for forty or so years, with all due respect,I think I'll ignore that suggestion. The rally in the indexes you just witnessed is propelled almost entirely by the ten FANG stocks minus TSLA. A rare event. But one needs some history with the McClellan Oscillator to know its context. These two indicators are the clearest read of mass market psychology and direction there is. I would suggest you study up or just forget about.