Retention rate

Retention rate

A retention rate measures how long a news server holds articles from a given newsgroup.

News Servers do not have unlimited storage, and due to this fact they can only hold posts for a short length of time before they must delete them in order to make room for new posts. This is a particular problem to binary newsgroups which transmit large volumes of articles.

For news servers provided by Internet Service Providers as part of a user's subscription package, typical retention rates are usually only 2-4 days. For premium news servers, this often rises to 1-3 months. The maximum retention with 200 days in binary groups is currently provided by Giganews.

The retention rate is also a term used in finance.It is used to estimate growth rate(g) when calculating the intrinsic value of a stock.


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