Momentum investing is all about the idea of following a stock's recent trend, which can be in either direction. In the 'long' context, investors will essentially be "buying high, but hoping to sell even higher." And for investors following 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 in that direction. 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 China Automotive Systems (CAAS), 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. China Automotive Systems currently has a Zacks Rank of #1 (Strong 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 CAAS that show why this auto parts supplier 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 is also useful to compare a security to its industry, as this can help investors pinpoint the top companies in a particular area.For CAAS, shares are up 14.6% over the past week while the Zacks Automotive - Original Equipment industry is flat over the same time period. Shares are looking quite well from a longer time frame too, as the monthly price change of 59.95% compares favorably with the industry's 0.49% performance as well.Considering longer term price metrics, like performance over the last three months or year, can be advantageous as well. Over the past quarter, shares of China Automotive Systems have risen 52.01%, and are up 116.5% in the last year. On the other hand, the S&P 500 has only moved -0.77% and -14.71%, respectively.Investors should also take note of CAAS'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, CAAS is averaging 304,372 shares for the last 20 days.Earnings OutlookThe 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 CAAS.Over the past two months, 1 earnings estimate moved higher compared to none lower for the full year. These revisions helped boost CAAS's consensus estimate, increasing from $0.40 to $0.62 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 LineGiven these factors, it shouldn't be surprising that CAAS is a #1 (Strong 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 China Automotive Systems on your short list. Just Released: Zacks Unveils the Top 5 EV Stocks for 2022 For several months now, electric vehicles have been disrupting the $82 billion automotive industry. And that disruption is only getting bigger thanks to sky-high gas prices. Even titans in the financial industry including George Soros, Jeff Bezos, and Ray Dalio have invested in this unstoppable wave. You don't want to be sitting on your hands while EV stocks break out and climb to new highs. In a new free report, Zacks is revealing the top 5 EV stocks for investors. Next year, don't look back on today wishing you had taken advantage of this opportunity.>>Send me my free report revealing the top 5 EV stocksWant the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report China Automotive Systems, Inc. (CAAS): Free Stock Analysis ReportTo read this article on Zacks.com click here.Zacks Investment Research