Filter

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Filter

A rule that stipulates when a security should be bought or sold according to its price action.

Filter Rule

In technical analysis, an arbitrarily set percentage of increase or decline in a stock's price that the analyst sees as an indicator to buy or sell the stock. For example, the analyst may set his/her own filter rule at 15%. If the stock rises 15%, the analyst recommends buying; if it falls 15%, he/she recommends selling. While the particular percentage is subjective, one arrives at it by observing the stock's historical trends. The filter rule exists to help the investor avoid buying or selling at insignificant or anomalous changes in price. However, many analysts do not believe that the filter rule consistently produces profits for the investor.
References in periodicals archive ?
There are several available retrievable vena cava filters made of varying materials and design.
Indications, complications and outcomes of inferior vena cava filters: A retrospective study.
Lin et al., "Impact of physician education and a dedicated inferior vena cava filter tracking system on inferior vena cava filter use and retrieval rates across a large US health care region," Journal of Vascular and Interventional Radiology, vol.
Heniford, "Complications of inferior vena cava filters," The American Surgeon, vol.
Vena cava filters significantly reduced the incidence of pulmonary embolism within the first 12 days compared to patients without filter, but this protection was no longer significant after 2 years of follow-up.
Sloan, "Indications, complications, and management of inferior vena cava filters: the experience in 952 patients at an academic hospital with a level I trauma center," JAMA Internal Medicine, vol.
Vena cava filters and inferior vena cava thrombosis.
Crux Biomedical's IVCF was designed to address the limitations of currently available vena cava filters, including perforation, migration and inability to retrieve.
A novel technique to prevent displacement of inferior vena cava filter during cardiac catheterization with subsequent transcatheter closure of a patent foramen ovale in a patient with cryptogenic shock.
Use of a vena cava filter is another issue that needs further study, according to Dr.
Food and Drug Administration recently approved a new Cook product, the Bird's Nest Vena Cava Filter, which prevents blood clots from traveling to the hearts or lungs of patients who have deep vein thrombosis, certain cancers or who have suffered bone injury or undergone hip surgery.
Another study** showed the filter designed by pharmaceutical company Cook, called the Cook Celect[R] Platinum Vena Cava Filter, had a 100% failure rate within 71 months.