Attached is the Effective Volume update from effectivevolume.com which separates the large player volume from the small player volume.
Note: The big uptick in large player volume that came into the QQQ and IWM ETFs this week, which moved both of those cumulative charts back to a positive signal. Whereas, the SPY cumulative chart remains in a base around its 20 day MA.
Disclaimer: For educational purpose only. Not investment advice. Seek professional advice from a financial advisor before making any investing decisions.