Group 1 - The core viewpoint of the article is that Tenet Healthcare (THC) has raised its 2025 EBITDA guidance to $4.57 billion, driven by strong same-store growth and operational efficiency [1] Group 2 - Tenet Healthcare's stock price saw a slight increase in early trading on Wednesday [1] - The upward revision of EBITDA guidance reflects the company's positive performance metrics [1]