StarTek shares ended the Oct 1 trading session 13.4% higher at $6.25. The jump came on an impressive volume with a higher-than-average number of shares changing hands in the session. This compares to the stock's 10.7% loss over the past four weeks.

The stock is benefiting from the company’s revenue growth across key growth verticals, and strong operating performance.

This call center operator is expected to post quarterly earnings of $0.04 per share in its upcoming report, which represents a year-over-year change of +300%. Revenues are expected to be $162.25 million, down 0.3% from the year-ago quarter.

While earnings and revenue growth expectations are important in evaluating the potential strength in a stock, empirical research shows a strong correlation between trends in earnings estimate revisions and near-term stock price movements.

For StarTek, the consensus EPS estimate for the quarter has remained unchanged over the last 30 days. And a stock's price usually doesn't keep moving higher in the absence of any trend in earnings estimate revisions. So, make sure to keep an eye on SRT going forward to see if this recent jump can turn into more strength down the road.

The stock currently carries a Zacks Rank 1 (Strong Buy). You can see the complete list of today's Zacks Rank #1 (Strong Buy) stocks here >>>>