巴克莱股票衍生品策略团队指出，AI投资对经济增长的贡献持续上升（去年约0.8个百分点，今年2.3%的增速中近一半来自AI投资），市场对AI资本开支与融资风险日益敏感；同时AI主题推动美股已实现相关性创历史新低，标普Top50三个月已实现相关性于9月26日低至2.4，板块间相关性甚至低于跨资产相关性。这一罕见组合使"最优看跌期权"（BOP）结构迎来极具吸引力的入场点：买入XLK、XLV、XLE六个月期90%执行价BOP成本仅45个基点，较中位数及最便宜普通看跌期权分别折价82%和58%；SMH、XLP、XOP同类结构成本59个基点，折价80%和38%。
As growth becomes increasingly dependent on AI investment, best-of-put (BOP) structures offer an attractive way to hedge an AI-driven growth shock while efficiently harvesting record-low correlation. AI investment contributed roughly 0.8pp to last year's ~2% real GDP growth and accounts for nearly half of this year's 2.3% growth rate, making the market highly sensitive to AI capex and financing risks. Meanwhile, S&P Top 50 3m realized correlation fell to just 2.4 correlation points on 26 September, and inter-sector correlation is now lower than cross-asset correlation. Investors can buy a 6M 90% BOP on XLK, XLV and XLE for 45bps (an 82% and 58% discount to the median and cheapest vanilla put), or a similar structure on SMH, XLP and XOP for 59bps (an 80% and 38% discount). On European earnings, options have overpriced earnings moves for about 58% of SXXP reporters, with Adidas, Heineken and BP screening as relatively cheap earnings volatility and Standard Chartered, Repsol and Volkswage