We investigate the strength and the direction of information transfer in the U.S. stock market between the composite stock price index of stock market and prices of individual stocks using the transfer entropy. Through the directionality of the information transfer, we find that individual stocks are influenced by the index of the market.
@article{arxiv.0708.0063,
title = {Information flow between composite stock index and individual stocks},
author = {Okyu Kwon and Jae-Suk Yang},
journal= {arXiv preprint arXiv:0708.0063},
year = {2008}
}