Here is a helpful overview on CME https://www.cmegroup.com/markets/equities/sp/e-mini-sandp500.volume.html In the first screenshot of Tradingview far left is the menu for Object Tree and Data Window, select data window, then the timeframe you want to check. In this example I am comparing Sept to Dec per same 1 hour candle. Far left of data window shows the open, high, low, close and Vol. You want to compare Vol by clicking on the candle that you want to compare. For that hour candle Dec had volume of 365 and Sept had a volume of 43,680 Or what Helen said is even easier.