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1. An act that requires use of resources or time. In Program Evaluation and Review Technique (PERT), an activity is represented by an arrow on a PERT chart.

2. In investing, the amount of a security's relative trading volume; that is, the amount of money flowing into and out of a security in trading. A high amount of activity means that many shares of the security are being bought and sold at a high rate, while a low level of activity indicates the opposite.


The amount of relative trading volume in a security.
References in periodicals archive ?
Displacement activity and motivational theory: A case study in the history of ethology.
Either he's very interested in interior design or it's a displacement activity and it means he can avoid looking at Caroline.
But, just in case it won't, you indulge in displacement activity, putting off crunch-time.
Roy is engaged in a redecorating frenzy this week, classic displacement activity as he can't stop brooding on what Hayley has said she wants to do before her terminal illness prevents her making her own decisions.
How much more when this is bound to appear as a diversionary tactic, a displacement activity, a desperate attempt to flail around in the water as the sharks close in?
DISPLACEMENT activity is something we're all guilty of.
Shoes have become a kind of mass feminine displacement activity.