Friday, shares of LyondellBasell Industries (NYSE: LYB ) were downgraded by Argus from Buy to Hold. The Houston, Texas-based company, a leader in plastics, chemicals, and refining with a global presence in 32 countries and an $18.4 billion market cap, has faced recent challenges. The stock has declined 21% year-to-date and 37% over the past year. The downgrade reflects the lackluster financial performance of the company, attributed to decreased demand across most of its business segments. According to InvestingPro analysis, the company maintains a "Fair" overall financial health score despite recent headwinds. Argus analysts cited worsening production conditions and weak fundamentals as the primary reasons for the downgrade.