I use a technical-based interpretation of variant perception (developed over a 30 yr period) -- that's very profitable. Here is the record of trades and analysis over the past several months (in a very difficult period) http://www.street-noise.net/stocks/a-review-of-recent-forecats/ Here are some links that explain the method in a genaral way, its too profitable to fully diclose, but the general ideas may be helpful to some... http://www.street-noise.net/highlight/what-works-in-trading-why/ More specific rules here... http://www.street-noise.net/think/streetnoise-trading-model-part-1/