Core Insights - Merck's Gardasil vaccine is experiencing significant sales declines, particularly in China and Japan, with a projected negative compound annual growth rate (CAGR) of 18.1% over the next three years [1][4] Sales Performance - Gardasil sales fell by 3% in 2024 and 40% year-over-year in the first nine months of 2025, primarily due to weak demand in China and Japan [1][9] - The economic slowdown in China has led to higher-than-normal inventory levels for Merck's partner, Zhifei, prompting Merck to halt shipments of Gardasil in China until at least the end of 2025 [2][3] Competitive Landscape - Merck's other vaccines, including ProQuad, M-M-R II, Varivax, RotaTeq, and Pneumovax 23, also saw sales declines in the first nine months of 2025 [6][9] - Merck's new RSV antibody, Enflonsia, recorded $79 million in sales in Q3 2025 but faces competition from AstraZeneca/Sanofi's Beyfortus, which achieved €1.09 billion in sales in the same period, up 33.8% year-over-year [6][7] Valuation and Market Performance - Year-to-date, Merck's shares have increased by 6.3%, underperforming the industry average of 15.9% [8] - Merck's price-to-earnings ratio stands at 11.97, lower than the industry average of 16.98 and its 5-year mean of 12.56, indicating a potentially attractive valuation [10] Earnings Estimates - The Zacks Consensus Estimate for Merck's 2025 earnings per share has slightly increased from $8.94 to $8.98, while the estimate for 2026 has decreased from $9.56 to $8.81 over the past 60 days [11]

Core Insights - Merck (MRK) reported Q3 2025 adjusted EPS of $2.58, exceeding the Zacks Consensus Estimate of $2.36, with a year-over-year increase of 64% on a reported basis and 65% excluding foreign exchange [1][10] - Revenues for Q3 increased by 4% year-over-year to $17.28 billion, surpassing the Zacks Consensus Estimate of $17.06 billion [1][10] Sales Performance of Key Products - Keytruda, Merck's leading oncology drug, generated sales of $8.14 billion, an 8% increase year-over-year, but fell short of the Zacks Consensus Estimate of $8.40 billion [3] - Alliance revenues from Lynparza and Lenvima contributed positively, with Lynparza sales rising 12% to $379 million and Lenvima revenues totaling $258 million, up 2% [4] - Welireg recorded sales of $196 million, reflecting a 41% increase due to higher demand in the U.S. and early uptake in Europe [5] - HPV vaccines, Gardasil and Gardasil 9, saw a 25% decline in sales to $1.75 billion, primarily due to lower demand in China and Japan [6] - Capvaxive, a new pneumococcal vaccine, generated $244 million in sales, up from $129 million in the previous quarter [7] - The diabetes drug franchise, Januvia/Janumet, saw a 29% increase in sales to $624 million, driven by higher net pricing in the U.S. [8] Animal Health Segment - The animal health segment generated revenues of $1.62 billion, a 9% increase year-over-year, driven by higher demand for livestock products [11] 2025 Guidance - Merck narrowed its 2025 sales guidance to $64.5-$65.0 billion, reflecting a slight adjustment from the previous range [12] - Adjusted EPS guidance for 2025 was raised to a range of $8.93 to $8.98, incorporating a revised negative impact from foreign exchange [13] - The updated EPS outlook includes benefits from a revised AstraZeneca deal and improved operations, partially offset by costs from the acquisition of Verona Pharma [14][15] Market Reaction - Despite strong Q3 results, Merck's shares fell over 2% in pre-market trading due to Keytruda's weaker-than-expected sales and the narrowed sales guidance [19]

Core Insights - Merck (MRK) reported Q2 2025 adjusted EPS of $2.13, exceeding estimates, but a 7% decline year-over-year on a reported basis due to a $200 million upfront payment for a license agreement with Hengrui Pharma [2][9][17] - Revenues decreased 2% year-over-year to $15.81 billion, aligning with consensus estimates [3][9] Sales Performance of Oncology Drugs - Keytruda sales reached $7.96 billion, a 9% increase, driven by strong uptake in various cancer indications, surpassing estimates [4][9] - Alliance revenues from Lynparza and Lenvima contributed positively, with Lynparza sales up 15% to $370 million and Lenvima revenues totaling $265 million, up 5% [5] Sales Performance of Other Key Products - HPV vaccine sales (Gardasil and Gardasil 9) fell 55% to $1.13 billion due to reduced demand in China, missing estimates [7] - Sales of other vaccines showed mixed results, with Vaxneuvance increasing 20% to $229 million, while Rotateq and Pneumovax 23 saw significant declines [8][10] Animal Health Segment - The Animal Health segment generated $1.65 billion in revenues, an 11% increase year-over-year, driven by higher demand and the inclusion of Elanco aqua business sales [12] Cost and Margin Discussion - Adjusted gross margin improved to 82.2%, up 130 basis points year-over-year, attributed to a favorable product mix [13] - Adjusted R&D spending rose 15% to $3.99 billion, influenced by the upfront payment to Hengrui Pharma and increased compensation costs [14] 2025 Guidance - Merck narrowed its 2025 revenue guidance to $64.3-$65.3 billion, reflecting a less negative currency impact [15] - Adjusted EPS guidance is now between $8.87 and $8.97, accounting for a revised negative impact from foreign exchange [16] Acquisition Plans - Merck announced plans to acquire Verona Pharma for approximately $10 billion, expected to close in Q4 2025, which will enhance its portfolio in chronic obstructive pulmonary disease [19]