Julianne Moore holds the commanding lead in the Oscars 2027 Best Actress market thanks to her critically acclaimed turn in Jesse Eisenberg’s “The Debut,” where she portrays a New Jersey housewife who auditions for a community theater production. Industry consensus from precursors and early reviews highlights her versatile comic and dramatic range, positioning the A24 film as the category’s clearest frontrunner months before nominations. Traders see her past Oscar win and strong guild alignment as reinforcing factors, while Inde Navarrette’s breakout horror performance in “Obsession” represents the most credible alternative at lower implied probability. The race remains fluid pending December screenings, January nominations, and guild results that could shift momentum for contenders like Sandra Hüller or Olivia Wilde.