Motivation of this study is to examine the relationship between investor sentiment and stock market by taking financial crisis period into account. When literature is examined, it is seen that there is a deficiency in this respect. Although there are studies examining same phenomena, none of them has considered the impact of financial crisis. To eliminate this deficiency, we have employed tests with structural breaks rather than conventional ones. At the end of these tests, structural breaks are observed at crisis period as it is expected. By employing data for the period December 2003-December 2012 existence of co-integration, which is an indicator of a long-term relationship between variables, is proved. This is a significant insight showing that consumer confidence index is a critical factor which is in an interaction with stock markets.