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.

While many investors like to look for momentum in stocks, this can be very tough to define. There is a lot of debate surrounding which metrics are the best to focus on and which are poor quality indicators of future performance. The Zacks Momentum Style Score, part of the Zacks Style Scores, helps address this issue for us.

Below, we take a look at Arthur J. Gallagher (AJG Quick QuoteAJG - Free Report) , which currently has a Momentum Style Score of A. We also discuss some of the main drivers of the Momentum Style Score, like price change and earnings estimate revisions.

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. Arthur J. Gallagher 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 AJG that show why this insurance and risk-management company shows promise as a solid momentum pick.

Looking at a stock's short-term price activity is a great way to gauge if it has momentum, since this can reflect both the current interest in a stock and if buyers or sellers have the upper hand at the moment. It's also helpful to compare a security to its industry; this can show investors the best companies in a particular area.

For AJG, shares are up 3.43% over the past week while the Zacks Insurance - Brokerage industry is down 0.94% over the same time period. Shares are looking quite well from a longer time frame too, as the monthly price change of 9.45% compares favorably with the industry's 0.5% 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 Arthur J. Gallagher have increased 23.49% over the past quarter, and have gained 18.41% in the last year. In comparison, the S&P 500 has only moved 16.83% and 18.31%, respectively.

Investors should also pay attention to AJG'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. AJG is currently averaging 819,428 shares for the last 20 days.

Earnings Outlook

The Zacks Momentum Style Score also takes into account trends in estimate revisions, in addition to price changes. Please note that estimate revision trends remain at the core of Zacks Rank as well. A nice path here can help show promise, and we have recently been seeing that with AJG.

Over the past two months, 7 earnings estimates moved higher compared to none lower for the full year. These revisions helped boost AJG's consensus estimate, increasing from $3.93 to $4.25 in the past 60 days. Looking at the next fiscal year, 6 estimates have moved upwards while there have been no downward revisions in the same time period.

Bottom Line

Given these factors, it shouldn't be surprising that AJG is a #2 (Buy) stock and boasts a Momentum Score of A. If you're looking for a fresh pick that's set to soar in the near-term, make sure to keep Arthur J. Gallagher on your short list.