What is the Mosaic Theory

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


There is a debate within the investment community whether this style of analysis misuses insider information, but the CFA Institute, formerly known as the Association for Investment Management and Research (AIMR), has recognized mosaic theory as a valid method of analysis. Hedge fund manager, Raj Rajaratnam used the mosaic theory as his defense during his insider trading trial but was ultimately found guilty. Analysts using this method should disclose the details of the information and methodology they used to arrive at their recommendation.

Mosaic Theory and Scuttlebutt Method

Mosaic theory closely aligns with the scuttlebutt method, a company analysis technique popularized by investment guru Philip Fisher in his 1958 book “Common Stocks and Uncommon Profits." Investors who use the scuttlebutt method make conclusions about a company by piecing information together using firsthand knowledge from discussions with employees, competitors and industry experts. Both the mosaic theory and scuttlebutt method gather small pieces of non-material information and add them together to form a material conclusion.

Mosaic Theory Practical Application

Easier access to information makes the mosaic theory more accessible to do-it-yourself (DIY) investors. Non-material information might be collected as follows:

  • 10-K Report: Investors who have a proficient understanding of accounting concepts, such as profit and loss statements and balance sheets, can scour the company’s financial performance for anomalies. 10-K reports are available from the Securities and Exchange Commission’s (SEC) website.
  • LinkedIn and Glassdoor: These websites provide useful insight into a company’s employees from customer service representatives to senior management. Investors might be able to make conclusions about the labor turnover rate and level of employee satisfaction by reviewing user profiles and posted content.
  • Google Trends: Determine if there is robust consumer demand for a company’s products and services by using this Google research tool. For example, an investor may conclude that a company is likely to receive a takeover bid from a multinational corporation due to strong demand for a new product it sells in a foreign market.
  • The Pew Research Center: This site provides investors with nonpartisan macro insights about current trends, attitudes and issues that are shaping the world. For instance, Investors might learn that a company is majorly out of alignment with public sentiment about a particular issue, which may severely impact its revenue.