There is enough liquidity in the NQ to trade 50 lots. Many orders by larger traders use iceberg so you dont really see the real size until you look at time and sales after the fact, These specific days you have such fast/large moves so even though there is plenty of volume the bid-ask at every level is smaller. The past few days and the next days to come are not the norm in my opinion for how the NQ and other markets trade. Will probably be wiser to evaluate after the volatility returns to more "normal levels"