Daily , not seasonally adjusted . The Russell 2000Â® Index measures the performance of the small-cap segment of the U.S. equity universe. The Russell 2000Â® Index is a subset of the Russell 3000Â® Index representing approximately 10% of the total market capitalization of that index. It includes approximately 2000 of the smallest securities based on a combination of their market cap and current index membership. The Russell 2000Â® is constructed to provide a comprehensive and unbiased small-cap barometer and is completely reconstituted annually to ensure larger stocks do not distort the performance and characteristics of the true small-cap opportunity set. The index values provided here are the official daily index values as provided directly by Russell Indexes. These values will not match the values seen on popular sources such as CNBC and the Wall Street Journal. Those sources provide real-time information and are disseminated by the New York Stock Exchange (NYSE) as part of its real-time information service. The fluctuations in performance from day to day will be the same between the two sources, but the values are different due to different base dates and different base values. For example, the Russell 2000 closed at a value of 2898.43 on January 21st 2015 and at a value of 2908.37 on January 20th 2015. The Russell 2000 was down -0.34% from January 20th to January 21st 2015. These are official daily index values as provided by Russell. In the real-time information from NYSE, the Russell 2000 closed at a value of 1166.25 on January 21st and at a value of 1170.25 on January 20th 2015. The Russell 2000 was down -0.34% from January 20th to January 21st 2015. The fluctuations in performance are the same from day to day from each source, however the official daily index values and the real-time index values are different. Please contact Russell Indexes at [email protected] for further information. For more information, go to the source at: http://www.russell.com/indexes/americas/indexes/default.page?