The WIG20 is a capitalization-weighted stock market index of the twenty largest companies on the Warsaw Stock Exchange. WIG is an acronym for "Warszawski Indeks Giełdowy", which translates to Warsaw Stock Index in Polish. However, so that no sector would dominate the index, the rule was introduced that there can be a maximum of 5 companies per sector. In this way, for example, there are 5 banks in the index. Companies also have different shares in the index, with clear consequences.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).