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Oscar Letch

Summer Intern, Index Investment Strategy, S&P Dow Jones Indices

Oscar Letch is a Summer Intern, Index Investment Strategy at S&P Dow Jones Indices (S&P DJI). The Index Investment Strategy team provides research and commentary on the entire S&P DJI product set, including U.S. and global equities, commodities, fixed income and economic indices.
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Aug 20, 2025

An ESG Score Odyssey: Through the Lens of the S&P 500

This study examines the performance of S&P 500® constituents over the past 10 years through the lens of their S&P Global ESG Scores. A key question for market participants has been whether companies with high or low ESG scores outperform or underperform relative to their peers and the broader market benchmarks. Building on our prior…

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