Filter

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Filter

A rule that stipulates when a security should be bought or sold according to its price action.
Copyright © 2012, Campbell R. Harvey. All Rights Reserved.

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.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved
References in periodicals archive ?
The pre-filter is built into the air intake grill of the device and then the air passes through the Carbon and HEPA filters, before being expelled out from the top.
Figure 5(b) represents the field test data of microbial counts under different face velocity of HEPA filter. The sampling point 4, 5 and 6 are actually located evenly above the surgery table, while sampling point 7 and 8 are on the corner of surgery table.
HEPA filters are recognized as effective by the American Medical Association, the American Lung Association (ALA) and the American Academy of Allergy, Asthma and Immunology.
The final stage of flltration is two optional HEPA filters.
Majority of air purifiers available for homes in India use a HEPA filter and interestingly, you will find more number of filters on the low and high end of the spectrum with purifiers like Kent Alps ( review ) and the IQAir HealthPro 250 ( review ) respectively.
* Rear manifold recirculates air through HEPA filters for a continuous wash of particle-free air to the work area
* UV air cleaner uses a HEPA filter as well as ultraviolet light rays to clean air.
Of the four types of room air filters available--mechanical, electrostatic, gas phase, and high-efficiency particulate air (HEPA)--the HEPA filter is probably the most powerful at removing dust and allergens.
Alternatively, air can be passed through a HEPA filter before returning to general circulation.
It has a Pre-filter, a HEPA filter and Honeywell's patented HiSiv filter.