In the latest trading session, Novavax (NVAX) closed at $7.95, marking a -0.5% move from the previous day. This move lagged the S&P 500's daily gain of 0.47%. At the same time, the Dow added 0.4%, and the tech-heavy Nasdaq gained 0.87%.Heading into today, shares of the vaccine maker had lost 18.64% over the past month, lagging the Medical sector's loss of 0.39% and the S&P 500's gain of 1.43% in that time.NVAX will be looking to display strength as it nears its next earnings release. In that report, analysts expect NVAX to post earnings of -$1.08 per share. This would mark year-over-year growth of 58.46%. Meanwhile, the Zacks Consensus Estimate for revenue is projecting net sales of $3.99 million, down 34.89% from the year-ago period.Investors should also note any recent changes to analyst estimates for NVAX. These recent revisions tend to reflect the evolving nature of short-term business trends. As a result, we can interpret positive estimate revisions as a good sign for the company's business outlook.Based on our research, we believe these estimate revisions are directly related to near-team stock moves. We developed the Zacks Rank to capitalize on this phenomenon. Our system takes these estimate changes into account and delivers a clear, actionable rating model.Ranging from #1 (Strong Buy) to #5 (Strong Sell), the Zacks Rank system has a proven, outside-audited track record of outperformance, with #1 stocks returning an average of +25% annually since 1988. Within the past 30 days, our consensus EPS projection has moved 4.9% higher. NVAX is currently a Zacks Rank #2 (Buy).The Medical - Biomedical and Genetics industry is part of the Medical sector. This group has a Zacks Industry Rank of 81, putting it in the top 32% of all 250+ industries.The Zacks Industry Rank gauges the strength of our individual industry groups by measuring the average Zacks Rank of the individual stocks within the groups. Our research shows that the top 50% rated industries outperform the bottom half by a factor of 2 to 1.Be sure to follow all of these stock-moving metrics, and many more, on Zacks.com.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 To read this article on Zacks.com click here.