JJ Kinahan, Chief Strategist of TD Ameritrade, reviews the latest monthly results for the Investor Movement Index (IMX), a measure of how Main Street is trading and market sentiment. Kinahan explains why IMX increased for a fourth consecutive month, the longest upward trend since October 2012. As equity markets were volatile in January, TD Ameritrade clients bought additional shares of dividend paying issuers and increased market exposure, viewing the recent dip as a buy opportunity. TheStreet's Jill Malandrino has details from Wall Street.

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