I have no idea if there is any way to determine that. I believe a majority of volume is driven by algos that buy and sell all day long on news and technicals. That to me has the biggest influence on the daily mkt moves we see.
I think that's true about the algo's, so long as the ranges are contained and no long term damage is done via the liquidity pulls/adds. The problems arise when something snaps and long term bigger money begins liquidating on top of all those algo liquidity pulls.