Cornell Corrections Inc.

This Zacks #1 rank stock's sustained price strength comes on the heels of higher analyst estimates. The current-year estimate stands at $1.40 per share, up from $1.29 60 days ago. The next-year estimate stands at $1.64 per share, a 17% earnings growth projection.

Cornell has surprised and beaten analyst estimates in each of the last four quarters, having done so by an average of 5 cents, or 15%, a testament to the company's ability to produce steady results in a choppy market. Take a look at the chart below.

Last Week's Momentum Zacks Rank Buy Stocks

Carbo Ceramics, Inc. (CRR - Snapshot Report) continues to benefit from elevated energy prices. The company's second-quarter results were excellent, analyst estimates are up once again, and its stock price has been rallying for most of the year. Read full Analysis.

99 Cents Only Stores (NDN - Snapshot Report) battled through a tough second quarter in which inflationary pressures pushed their earnings for the period into the red. But in spite of the loss, analysts are projecting strong earnings growth, and the company's share price has been locked into a very nice rally for the past few months. Read full Analysis.

NN, Inc. (NNBR - Snapshot Report) has been able to produce impressive earnings growth in a very tough environment. The company has surprised and beaten analyst estimates in each of the last three quarters, and the analyst community is projecting 16% earnings growth in the next-year period. Read full Analysis.

CF Industries Holdings, Inc. (CF - Analyst Report) is operating in a very hot segment of the market but still retains extremely attractive valuations, trading at a steep discount to the overall market. The analyst community is bullish on the long-term prospects of CF, with the next-year estimate projecting 31% earnings growth. Read full Analysis.