README.md

Analyzing market states of the S&P 500 components on a time horizon January 3, 2006 to August 10, 2023, we found the appearance of a new market state not previously seen and we shall discuss its possible implications as an isolated state or as a beginning of a new general market condition. We study this in terms of the Pearson correlation matrix and relative correlation with respect to the S&P 500 index. In both cases the anomaly shows strongly.

本研究于2006年1月3日至2023年8月10日的时间区间内，对标普500（S&P 500）成分股的市场状态展开分析，发现了一种此前未曾出现的新型市场状态。本文将探讨该状态作为孤立市场状态，抑或是新一轮整体市场行情开端的潜在影响。我们通过皮尔逊相关矩阵（Pearson correlation matrix）以及对标普500指数的相对相关性两个维度开展研究，且在两种分析框架下，该异常现象均表现出极强的显著性。