Small caps, mid-caps, Financials, Telecom, and Consumer Discretionary were among the market segments that hit new highs this week, even as bearish sentiment and short interest have risen, and there is still plenty of idle cash on the sidelines looking for a home.

The Guggenheim Insider Sentiment ETF (NFO) -- which is based on the Sabrient Insider Sentiment Index --  has beat the market since its  inception in 2006.  This article from TheStreet.com (originally published at Insider Monkey) tells you why . . .