TD Ameritrade's Investor Movement Index breaks the highest level in its four-year history for the fourth month in a row. Chief Strategist JJ Kinahan explains technology and healthcare sectors were a popular buy, while consumer stocks were net sold, with Apple (AAPL) leading the way. Biotech and social media stocks like Gilead (GILD) and Facebook (FB) were volatile, but clients viewed that as a buying activity. Green Energy like Fuel Cell (FCEL) and Plug Power (PLUG) were also popular buys.

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