What is a high volume node?
A high volume node is a fat bulge on the profile where a lot of business printed at nearby prices. That is where traders crowded in and agreed. Because so many positions sit there, price tends to stall and rotate when it comes back through. Think mountain peaks: travel through them is slow.
A node that forms after a push into a key level is confirmation the move is real. New business at new prices means the market accepted the area instead of rejecting it. A fast spike that builds no node behind it is the opposite: likely a fake move that falls back into the old value.
The node has to be undeniable. The test is whether a book could sit on the bulge like a shelf. If you have to squint, it is not a node.
Use the edges, not the middle. A high volume node is a place to take profit or to watch for defense. The entries come from the value area high, the value area low, or the edge of the node. The middle of it is where chop lives.
Sources: Volume profile beginner guide · CZT Playbook