S&P/ASX 20 Index (^AXJO)

The S&P/ASX 20 is a stock market index of the Australian Securities Exchange, tracking the 20 largest stocks by market capitalization in Australia. It represents a subset of the broader ASX 200 and serves as a benchmark for blue-chip Australian equities. The index is float-adjusted and market-cap weighted, meaning larger companies have greater influence. It is widely followed by institutional investors, ETFs, and fund managers seeking exposure to the leading Australian companies across sectors such as banking, mining, and retail.