There are many Investment Philosophies.
I adhere to the philosophy expressed by Dimensional, a firm that applies academic research in order to experience both risk and return from various asset classes over time. This investment philosophy is applied through a Structured Investing approach which consists of Five Key Tenets.
What most investors are missing is a sound philosophy supported by a compatible structure based on basic tenets. Instead, greed and fear reign as a philosophy supported by chasing returns on things that are going up and abandoning things that are going down. Dalbar studies show that investors do not know how to behave when they invest. Standard and Poor’s Index vs Active scorecards as well as their Persistence scorecards show how consistently achieving market returns is difficult for actively managed mutual funds as well.
An investment philosophy should be rigourously throught through. A sound philosophy properly structrued on key tenets puts together all of the above factors in a manner consistent with what you are trying to do. How sound is your philosophy?