S&P has recently announced adjustments to the methodology, timing and changes to the ASX Indices
https://www.indexologyblog.com/2025/09/04/upcoming-enhancements-to-modernize-the-sp-asx-index-series/
- Reduce calculation period. Currently, the S&P/ASX 200 and S&P/ASX 300 consider companies for index inclusion based on a six-month average of their float-adjusted market capitalization and daily liquidity. This calculation period will be reduced to three months…
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