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Tag Archives: S&P 500 Top 20 Select Index

Apr 25, 2025

Volatility, Correlation and Dispersion in the S&P 500 Top 20 Select Index

The S&P 500® Top 20 Select Index series launched in August 2024 and is designed to measure the capped market-capitalization-weighted performance of the largest 20 companies, by float market cap, in the S&P 500. Previous blogs introduced the S&P 500 Top 20 Select Indices, covering their construction, objectives and historical performance. This installment examines the…

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Nov 25, 2024

The S&P 500 Top 20 Select Indices: A Deep Dive into Mega-Cap Performance

In the first part of this blog series, we introduced the S&P 500® Top 20 Select Indices, including their construction and relevance to the equity market. Now, let’s delve deeper into the indices’ historical performance and relative performance to other similar indices. Perhaps unsurprisingly, the S&P 500 Top 20 Select Indices all had similar cumulative…

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Nov 25, 2024

Introducing the S&P 500 Top 20 Select Indices

The S&P 500® is widely regarded as the best single gauge of U.S. large-cap equities. Among the 500 companies in the index, the largest names have drawn the most attention due to their outperformance in recent years. To address the increasing interest in mega-cap stocks in the S&P 500, S&P DJI recently launched the S&P…

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