Gilead Sciences Rallies 27.2% in Six Months: Buy or Sell the Stock?

Core Viewpoint - Gilead Sciences, Inc. (GILD) has demonstrated strong stock performance, gaining 27.2% over the past six months, significantly outperforming the industry and broader market indices [1][7]. Gilead's HIV Portfolio - The recent FDA approval of lenacapavir, branded as Yeztugo, introduces the first and only twice-yearly injectable option for HIV prevention in the U.S., enhancing Gilead's market-leading HIV treatment portfolio [2][4]. - Gilead's flagship drug, Biktarvy, holds over 51% market share in the U.S. treatment market, while Descovy maintains over 40% market share in the PrEP market [3][4]. - Yeztugo addresses barriers to PrEP adoption, such as adherence and healthcare access, and is expected to increase uptake among underserved populations [5][4]. Financial Performance and Growth - Gilead's stock has outperformed the industry, sector, and S&P 500 index, supported by the FDA approval of Yeztugo and rising earnings estimates [6][7]. - Earnings estimates for Gilead have increased, with the 2025 bottom-line estimate rising to $7.92 from $7.91, and the 2026 estimate improving to $8.48 from $8.39 [15]. Liver Disease Portfolio - Gilead's liver disease portfolio has been strengthened by the FDA approval of seladelpar for primary biliary cholangitis (PBC), which has shown encouraging initial uptake [9][10]. Oncology Business Challenges - Gilead's oncology portfolio faces challenges, particularly in the Cell Therapy franchise due to competitive pressures, but positive results from the ASCENT-03 study on Trodelvy may bolster future growth [11][12]. Strategic Positioning - Gilead's strategic collaborations and acquisitions, including a partnership with Merck for HIV treatment, position the company for continued growth despite competitive pressures from other firms like GSK [17][18]. - The company maintains a strong cash position of $7.9 billion, supporting its attractive dividend yield of 2.83%, which is sustainable [19].