What is the All Ordinaries index?

Introduction to the All Ordinaries Index

The All Ordinaries index, often abbreviated as "All Ords," is a prominent stock market index in Australia. It includes the largest 500 companies listed on the Australian Securities Exchange (ASX) by market capitalisation, making it a comprehensive benchmark for the performance of the broader Australian equity market.

Structure and Composition

The All Ordinaries index is market-capitalisation weighted, meaning that the companies with higher market capitalisation have a greater impact on the index's movements. This structure ensures that the index accurately reflects the economic stature of companies within the Australian market. The inclusion of 500 companies provides a wide-ranging overview, covering a significant portion of the market capitalisation of the ASX.

Importance and Function

As a barometer of the Australian stock market, the All Ordinaries index is widely used by investors, analysts, and policymakers to gauge the overall health and performance of the Australian economy. It helps stakeholders assess market trends, make investment decisions, and compare the performance of individual stocks against the broader market.

Rebalancing and Updates

The index undergoes regular rebalancing to ensure it remains representative of the market. This involves adjusting the companies included based on changes in market capitalisation, mergers, acquisitions, and other corporate actions. Such adjustments are crucial for maintaining the index's accuracy and relevance as an economic indicator.