The rating of volumes in process of importance:
1. Contract volume (greatest possible from volumes)
2. Volume of the week (following and previous weeks)
3. Volume of day (following day and previous days)
4. Volume of an hour (a half an hour, 15 minutes, 5 minutes etc.)

All these parametres define the future and current behaviour of
the market in the price space. The price goes from volume to volume.
The most serious movements of the market happen after accumulation of certain big volume on one price.