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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 ?
Time structure and purposeful activity among employed and unemployed university graduates.
He said: "As the Chief Inspector makes clear, Altcourse remains a good establishment which provides a positive regime focused on purposeful activity, education and rehabilitation.
In her report Anne Owers, HM Chief Inspector of Prisons, said: "It is commendable that Holme House had improved, in all the key areas we inspect - safety, respect, purposeful activity and resettlement.
NOccupational therapists assess and treat people using purposeful activity to prevent disability and promote independent function.
Results indicate that ASTSN is functioning at a high level of efficiency and effectiveness at community building, involving young people and their families in purposeful activity, encouraging self-confidence, and enhancing competence in self-presentation.
And Chief Inspector of Prisons Anne Owers told the House of Commons Justice Select Committee in December 2007: "We assess every prison we inspect against our four tests of a good prison - that prisoners are held safely, treated with respect, engage in purposeful activity and are prepared for resettlement - and it is very evident, when we look at those assessments, that small prisons do better.
To provide a respite service for the carer, but offering the same level of purposeful activity and skills maintenance to the Service User as specified in his or her individu
It recognises the hard work of our staff and the way prisoners are encouraged to build better habits and behaviour through routine, structure and purposeful activity.
However, in many other areas, including purposeful activity and resettlement, staff and managers are to be commended for what they have achieved.
The main criticism in the report was that the overcrowded jail offered "too little by way of purposeful activity for its prisoners".
Liverpool was failing to do this satisfactorily,offering education to only 18pcof prisoners and levels of purposeful activity significantly lower than other similar prisons.
The collection's units are programs of learning tied to purposeful activity and have already undergone successful trials in elementary classrooms in Australia.