Frequently Asked Questions
What is the purpose of Market Filters?
Market Filters is targetted at easy, yet powerful, market scans. Most other sites charge money to register for scans or don't use intra-day data.
Our goal is to make it quick and easy to find stocks matching your criteria. For example, finding oversold or overbought stocks based on an RSI signal, or MACD. Or simply find those with the largest percentage gain or drop in the last X days.
Market Filters is a tool, not a financial advisor. Neither is it intended as an automated trading platform.
What are the OB, OS and N icons shown for a stock?
The icons below will appear for a stock to signify whether the top-performing filters consider it to be Oversold, Overbought, or Neutral.
| Oversold | Neutral | Overbought |
|---|---|---|
 |  |  |
I don't see the indicator I want, what do I do?
Request it using the feedback link. The full range of indicators is still being built out. If there's one you need we'll move it to the top of the list and it will be available within hours or days.
How much market data do you have? How often does it update?
Our data is currently sampled over 15 times a day during market hours. We have multiple years of granular market data and access to many more years of end-of-day data, although that is not as useful for testing active trading strategies.
How do the Market Filters scoring algorithms work?
Each indicator runs independently on the market data and contributes to a score for each stock. A higher score means that stock fits that indicator well. When multiple indicators are combined their respective scores are added up to produce a final score.
Achieving the best results is not easy. The goal is for each indicator to produce the same average score otherwise some indicators will have more weight than others.
What are the symbols ending in .PK, .OB and .TO?
These indicate stocks on exchanges aside from NYSE, Nasdaq and AMEX. .PK is the Pink Sheets Electronic Quotation. .OB is the OTCBB exchange. .TO is the Toronto Stock Exchange (TSX).
What is the privacy policy?
Market Filters does not give, rent, or sell individual information to any third party. Your email will only ever be used to transmit information you request to receive. The website uses a cookie to maintain your session but it expires as soon as your browser window is closed.
Further, we have no intention to ever work with a third party to market "products you may be interested in."
Who created Market Filters?
The tools behind Market Filters were created by investors with a computer-science background several years ago. After years of daily use it became clear that other traders would find them useful as well and the Market Filters website was created.