There is an important concept in investing and in securities law called the Mosaic Theory that is being relied on by Raj Rajaratnam in his defense of the ongoing insider trading case against him.  To quote from Investopedia, the mosaic theory (aka the "mosaic method") is

A method of analysis used by security analysts to gather information about a corporation. Mosaic theory involves collecting public, non-public and non-material information about a company in order to determine the underlying value of the company's securities and to enable the analyst to make recommendations to clients based on that information.

Many articles have referenced the mosaic theory or method during the Rajaratnam trial, but there seems to be some ongoing difficulty with its name. So, to clarify: It is mosaic. M-O-S-A-I-C. It is not the Mozaic Theory (Benzinga). Nor is it the Matrix Method (New York Times), although I admit Matrix Method sounds pretty cool.

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