Core Insights - The Moneyball Index ranks Premier League clubs based on the effectiveness of their net transfer spending in relation to on-field performance over the past five seasons, including the 2025/26 season [1][2]. Summary by Categories Performance Rankings - Brighton tops the index with a score of +10, indicating exceptional efficiency in converting transfer spending into performance [2][6]. - Manchester City (+6) and Liverpool (+4) also demonstrate strong alignment between transfer spending and on-field success [2][6]. - Manchester United is identified as one of the least effective teams, with a score of -4, reflecting poor performance relative to their spending [2][6]. Underperforming Teams - Other teams with negative scores include Arsenal (-1), Chelsea (-1), Tottenham (-2), Newcastle (-2), and West Ham (-2), indicating a mismatch between their spending and performance [2][6]. - Bournemouth (-6), Burnley (-8), and Nottingham Forest (-9) have the lowest effectiveness scores in the index [2][6]. Methodology - The Moneyball Index is calculated by comparing two dimensions: net spending and on-field performance, which includes league points and trophy points weighted by reputation and difficulty [6]. - The index is based on data from 21 clubs that have participated in at least three seasons over the past five years, with transfer data sourced from Transfermarkt and performance data as of November 20, 2025 [6].