Momentum investing revolves around the idea of following a stock's recent trend in either direction. In the 'long' context, investors will be essentially be "buying high, but hoping to sell even higher." With this methodology, taking advantage of trends in a stock's price is key; once a stock establishes a course, it is more than likely to continue moving that way. The goal is that once a stock heads down a fixed path, it will lead to timely and profitable trades.

Even though momentum is a popular stock characteristic, it can be tough to define. Debate surrounding which are the best and worst metrics to focus on is lengthy, but the Zacks Momentum Style Score, part of the Zacks Style Scores, helps address this issue for us.

Below, we take a look at Energy Recovery (ERII Quick QuoteERII - Free Report) , a company that currently holds a Momentum Style Score of B. We also talk about price change and earnings estimate revisions, two of the main aspects of the Momentum Style Score.

It's also important to note that Style Scores work as a complement to the Zacks Rank, our stock rating system that has an impressive track record of outperformance. Energy Recovery currently has a Zacks Rank of #2 (Buy). Our research shows that stocks rated Zacks Rank #1 (Strong Buy) and #2 (Buy) and Style Scores of A or B outperform the market over the following one-month period.

You can see the current list of Zacks #1 Rank Stocks here >>>

Set to Beat the Market?

Let's discuss some of the components of the Momentum Style Score for ERII that show why this maker of energy recovery devices shows promise as a solid momentum pick.

A good momentum benchmark for a stock is to look at its short-term price activity, as this can reflect both current interest and if buyers or sellers currently have the upper hand. It's also helpful to compare a security to its industry; this can show investors the best companies in a particular area.

For ERII, shares are up 1.1% over the past week while the Zacks Pollution Control industry is up 1% over the same time period. Shares are looking quite well from a longer time frame too, as the monthly price change of 10.22% compares favorably with the industry's 4.17% performance as well.

While any stock can see its price increase, it takes a real winner to consistently beat the market. That is why looking at longer term price metrics -- such as performance over the past three months or year -- can be useful as well. Shares of Energy Recovery have increased 27.83% over the past quarter, and have gained 22.99% in the last year. On the other hand, the S&P 500 has only moved 7.13% and 17.57%, respectively.

Investors should also take note of ERII's average 20-day trading volume. Volume is a useful item in many ways, and the 20-day average establishes a good price-to-volume baseline; a rising stock with above average volume is generally a bullish sign, whereas a declining stock on above average volume is typically bearish. Right now, ERII is averaging 194,170 shares for the last 20 days.

Earnings Outlook

The Zacks Momentum Style Score encompasses many things, including estimate revisions and a stock's price movement. Investors should note that earnings estimates are also significant to the Zacks Rank, and a nice path here can be promising. We have recently been noticing this with ERII.

Over the past two months, 1 earnings estimate moved higher compared to none lower for the full year. These revisions helped boost ERII's consensus estimate, increasing from $0.42 to $0.47 in the past 60 days. Looking at the next fiscal year, 1 estimate has moved upwards while there have been no downward revisions in the same time period.

Bottom Line

Taking into account all of these elements, it should come as no surprise that ERII is a #2 (Buy) stock with a Momentum Score of B. If you've been searching for a fresh pick that's set to rise in the near-term, make sure to keep Energy Recovery on your short list.