As everyone knows that market volume is quite important to trading strategy. For example, you probably don¡¦t want to do momentum trading during low volume day. I was currently using SPY and futures squawk to determine the volume condition. But squawk can¡¦t provide a precise view, because I was judging through the back ground noise of the pit. And I feel SPY volume is kind of tricky recently. I think more and more people are trading it, which can¡¦t give you an accurate view about the true market volume. The SPY volume may increase, but the market volume decrease. Is there a better way that you can find out the market volume during trading hours live?
1) The "tick count" can serve as a proxy for volume. 2) Faster "ticking" is correlated to higher volume. 3) Don't get too hung up on volume over price.