Amarin (AMRN) closed the most recent trading day at $17.93, moving +0.34% from the previous trading session. This change outpaced the S&P 500's 1.05% loss on the day. Meanwhile, the Dow lost 0.78%, and the Nasdaq, a tech-heavy index, lost 1.79%.Heading into today, shares of the biopharmaceutical company had lost 13.92% over the past month, lagging the Medical sector's loss of 0.34% and the S&P 500's gain of 1.5% in that time.Wall Street will be looking for positivity from AMRN as it approaches its next earnings report date. This is expected to be February 25, 2020. In that report, analysts expect AMRN to post earnings of $0.01 per share. This would mark year-over-year growth of 111.11%. Our most recent consensus estimate is calling for quarterly revenue of $134.44 million, up 73.85% from the year-ago period.Investors should also note any recent changes to analyst estimates for AMRN. Recent revisions tend to reflect the latest near-term business trends. With this in mind, we can consider positive estimate revisions a sign of optimism about the company's business outlook.Research indicates that these estimate revisions are directly correlated with near-term share price momentum. Investors can capitalize on this by using the Zacks Rank. This model considers these estimate changes and provides a simple, actionable rating system.The Zacks Rank system ranges from #1 (Strong Buy) to #5 (Strong Sell). It has a remarkable, outside-audited track record of success, with #1 stocks delivering an average annual return of +25% since 1988. Over the past month, the Zacks Consensus EPS estimate remained stagnant. AMRN is currently a Zacks Rank #3 (Hold).Digging into valuation, AMRN currently has a Forward P/E ratio of 297.83. This valuation marks a premium compared to its industry's average Forward P/E of 33.88.The Medical - Biomedical and Genetics industry is part of the Medical sector. This group has a Zacks Industry Rank of 78, putting it in the top 31% 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.To follow AMRN in the coming trading sessions, be sure to utilize 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.