How do you use vol? I don't know how I never use it. In my experience vol spikes can occur right before an upswing, right before a downswing and more often than not in the middle of nowhere. IE, price continues higher or lower despite vol. Vol doesn't seem to matter.Volume is an important part of technical analysis. Whether or not the demand that appeared in the middle of May will last remains to be seen, but buying this retracement is a low-risk option. If price doesn't rally, the trade is never triggered.