Victor Wembanyama stands as the clear market leader for 2026-27 NBA Defensive Player of the Year at 71.5% implied probability due to his elite rim protection, shot-blocking volume, and ability to alter opposing offenses at multiple positions. Traders price in his continued growth after standout defensive seasons, including high defensive rating impact and versatility that few peers match. Contenders such as Mikal Bridges, Bam Adebayo, and Jayson Tatum cluster near 45-50%, reflecting strong perimeter and help defense but less dominant individual impact. Lower-priced names like Chet Holmgren, Amen Thompson, and Jaren Jackson Jr. sit in the 3-15% range, supported by recent form, positional value, and historical award patterns yet limited by smaller sample sizes or team context. Season-long futures like this hinge on early injury reports, training camp developments, and opening-month metrics that often shift consensus.