The 2026 NBA offseason has been filled with surprise roster moves that could reshape the season, including Giannis Antetokounmpo joining the Heat and LeBron James landing with the 76ers, while teams consider late trades such as Jerami Grant’s potential departure. Separately, prediction markets from Polymarket, Kalshi, and Crypto.com now offer contract-based bets on NBA games, WNBA All-Star outcomes, NFL football, and even S&P 500 events, bridging sports and finance betting.