Novo Nordisk vs. Viking Therapeutics: Which GLP-1 Stock is a Safer Bet?

Core Insights - Novo Nordisk (NVO) and Viking Therapeutics (VKTX) are significant players in the obesity treatment market, with NVO being a market leader in the GLP-1 segment and VKTX developing a promising investigational drug [1][2][3] Group 1: Novo Nordisk (NVO) - NVO holds a 51.9% value market share in the GLP-1 segment as of Q2 2025, with a broad diabetes portfolio [4] - Wegovy, a key product for NVO, generated $5.41 billion (DKK 36.9 billion) in sales during the first half of 2025, but is facing slower-than-expected uptake in the U.S. due to illegal compounded versions [5] - NVO is expanding the indications for semaglutide, with Wegovy now approved for cardiovascular and osteoarthritis benefits, and an FDA decision on oral Wegovy expected by year-end [6] - The company is advancing its obesity pipeline, including the CagriSema program and partnerships to develop new treatments, while also diversifying into rare diseases [7][8] - NVO's recent leadership change, with a new CEO appointed on August 7, 2025, comes amid market headwinds and a stock decline since mid-2024 [9][10] - NVO cut its 2025 guidance due to slower uptake of Wegovy and Ozempic, alongside competition from Eli Lilly [10][11] Group 2: Viking Therapeutics (VKTX) - VKTX is a clinical-stage biotech firm with its investigational drug VK2735 showing potential for significant weight loss in early studies [2][12] - Despite demonstrating up to 12.2% weight loss in patients, VKTX's stock suffered after mixed results from a mid-stage study raised safety and tolerability concerns [13][14] - VKTX plans to file for an investigational new drug application for a new obesity treatment and is focusing on its obesity pipeline while exploring collaborations for other candidates [15][16] - VKTX has a strong cash position of $808 million as of June 2025, with no debt, providing financial flexibility to advance its programs [28] - VKTX's stock is trading at a lower price/book ratio compared to NVO, making it a more compelling valuation option [24][29] Group 3: Market Comparison - Both NVO and VKTX have faced stock declines of approximately 35.7% and 35.3% year-to-date, respectively, while the industry has gained 2.3% [22] - The Zacks Consensus Estimate for NVO implies a year-over-year increase of around 15% in sales and 17% in earnings per share for 2025, while VKTX is expected to widen its loss per share by 146% [17][20] - NVO is rated as a Zacks Rank 5 (Strong Sell) and VKTX as a Zacks Rank 4 (Sell), reflecting execution risks and limited near-term catalysts for both companies [26][27]