The San Antonio Spurs and Oklahoma City Thunder lead the 2027 NBA Championship market as co-favorites thanks to their elite young cores, with Victor Wembanyama anchoring a Spurs roster that reached the prior Finals and Shai Gilgeous-Alexander, Jalen Williams, and Chet Holmgren powering the Thunder after their strong recent regular-season performance. Both clubs benefit from roster continuity and projected growth heading into training camp, keeping Western Conference contention tight. LeBron James joining the Philadelphia 76ers alongside Joel Embiid and Jaylen Brown has lifted Eastern Conference odds for the Knicks and Sixers, while depth across multiple contenders with recent playoff experience sustains the bunched pricing as the season opens.