Core Insights - Two stocks in the health care sector are signaling potential warnings for momentum-focused investors as of September 5, 2025 [1] Group 1: Esperion Therapeutics Inc (ESPR) - Esperion Therapeutics reported better-than-expected second-quarter financial results, highlighting a 15% sequential quarterly growth and 42% year-over-year growth in net U.S. product sales [7] - The company's stock surged approximately 56% over the past month, reaching a 52-week high of $3.94 [7] - The RSI value for Esperion is 85.7, indicating it is considered overbought [7] Group 2: Nuvation Bio Inc (NUVB) - Nuvation Bio reported an in-line loss for the second quarter but noted the FDA approval of IBTROZI, marking its transition into a commercial-stage company [8] - The stock gained around 44% over the past month, with a 52-week high of $3.48 [8] - The RSI value for Nuvation Bio is 81.8, also indicating it is considered overbought [8]