The Australian Radio Network (ARN) will be removed from one of the Australian share market’s key benchmark indices in March .

Australia’s Media Week reports: S&P Dow Jones Indices confirmed that ARN Media (ASX: A1N) will be removed from the All Ordinaries Index as part of the March quarterly rebalance, with the change taking effect before the market opens on 23 March 2026. The decision means ARN will no longer be included in the All Ordinaries, commonly known as the All Ords, which tracks the 500 largest companies listed on the ASX.

In simple terms, the All Ordinaries acts as a benchmark index for the Australian share market. It’s essentially a scoreboard of the market’s biggest listed companies, used by investors to measure how the broader market is performing.

Many investment funds and exchange-traded funds (ETFs) also track the index, which means companies included in it can benefit from automatic investment flows. When a company falls out of the index, those same index-tracking funds may sell their holdings as the index composition changes.

Despite the index exit, ARN’s share price actually rose following last week’s news surrounding the future of The Kyle & Jackie O Show.

The company’s stock closed at 36 cents on Friday, enjoying a small bump in the market following the announcement that the show would end. Readers are free to infer what they want from that reaction.

At that price, ARN Media’s market capitalisation sits at approximately $112.7 million.