It has been about a month since the last earnings report for Paccar (PCAR). Shares have lost about 4.7% in that time frame, outperforming the S&P 500.Will the recent negative trend continue leading up to its next earnings release, or is Paccar due for a breakout? Before we dive into how investors and analysts have reacted as of late, let's take a quick look at the most recent earnings report in order to get a better handle on the important drivers. PACCAR Earnings & Revenues Surpass Estimates in Q1PACCAR’s first-quarter 2019 earnings were $1.81 per share, surpassing the Zacks Consensus Estimate of $1.66. Results were aided by a record truck delivery and strong global truck demand. In first-quarter 2018, the company’s earnings per share were $1.45.The company posted quarterly consolidated net sales and revenues of $6.14 billion, up from the prior-year quarter figure of $5.32 billion. The Zacks Consensus Estimate for revenues was pegged at $6 billion.Segmental ResultsThe pre-tax revenues from the Truck, Parts and Other segment increased to $716.1 million from $591.9 million recorded a year ago.Revenues from the Financial Services segment rose to $349.5 million from $332.2 million a year ago. Pre-tax income increased to $84 million from $67.5 million in the year-ago quarter.Financial PositionPACCAR’s cash and marketable debt securities amounted to $3.81 billion as of Mar 31, 2019, compared with $4.30 billion as of Dec 31, 2018.Class 8 Truck ViewIn the United States and Canada, Class 8 truck industry retail sale in the first quarter rose 23% year over year. For 2019, the United States and Canada Class 8 truck industry retail sale is anticipated to rise to 295,000-315,000 units from the previously mentioned 285,000-315,000.How Have Estimates Been Moving Since Then?In the past month, investors have witnessed an upward trend in fresh estimates. The consensus estimate has shifted 5.8% due to these changes.VGM ScoresAt this time, Paccar has an average Growth Score of C, however its Momentum Score is doing a lot better with an A. Charting a somewhat similar path, the stock was allocated a grade of B on the value side, putting it in the top 40% for this investment strategy.Overall, the stock has an aggregate VGM Score of A. If you aren't focused on one strategy, this score is the one you should be interested in.OutlookEstimates have been broadly trending upward for the stock, and the magnitude of these revisions looks promising. Notably, Paccar has a Zacks Rank #3 (Hold). We expect an in-line return from the stock in the next few months.Want 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 PACCAR Inc. (PCAR): Free Stock Analysis Report To read this article on Zacks.com click here.