Quarterly rebalance: Afterpay (ASX:APT) added to ASX 20, Kogan (ASX:KGN) joins the ASX 200

Afterpay Ltd (ASX:APT) and Kogan.com Ltd (ASX:KGN) shares will be on watch today after S&P Dow Jones Indices announced its quarterly rebalance of the S&P/ASX Indices…

stock exchange board

Asia Pacific Stock Exchange on board, display or monitor - selective focus

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More

A number of shares could be on the move on Monday after S&P Dow Jones Indices announced its quarterly rebalance of the S&P/ASX Indices.

This will see a number of popular shares added and dumped out of our major indices.

Here is a summary of the change that will be effective at the open of trading on December 21:

ASX 20.

The ASX 20 is home to the 20 largest listed companies on the Australian share market and will welcome payments company Afterpay Ltd (ASX: APT). The buy now pay later provider will take the place of insurance giant Insurance Australia Group Ltd (ASX: IAG).

ASX 50.

Afterpay is also being added to the ASX 50 at the rebalance and will be joined by cloud-based business and accounting software provider Xero Limited (ASX: XRO). They will be replacing energy producer Oil Search Ltd (ASX: OSH) and retail property company Vicinity Centres (ASX: VCX).

ASX 100.

The ASX 100 will welcome student placement company IDP Education Ltd (ASX: IEL), mining and mining services company Mineral Resources Limited (ASX: MIN), and plumbing parts company Reece Ltd (ASX: REH) later this month. They join at the expense of Flight Centre Travel Group Ltd (ASX: FLT), Iluka Resources Limited (ASX: ILU), and NIB Holdings Limited (ASX: NHF).

ASX 200.

Finally, the ASX 200 will be welcoming online retailer Kogan.com Ltd (ASX: KGN) and plumbing parts company Reece Ltd (ASX: REH) at the open of trading on December 21. They will actually be replacing three shares in the index. This is due to the ASX 200 currently containing 201 shares following the Deterra Royalties Ltd (ASX: DRR) demerger from Iluka. Leaving the benchmark index are Avita Therapeutics Inc (ASX: AVH)Cooper Energy Ltd (ASX: COE), and Western Areas Ltd (ASX: WSA).

What now?

As fund managers often have strict mandates in relation to the shares they can buy, this news could give certain shares a boost and put pressure on others.

In addition to this, index-tracking funds will be needing to buy the additions and dump the removed shares from each respective index in the near future. This could also add pressure to the buy and sell sides, depending on the share.

James Mickleboro has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. owns shares of Avita Medical Limited, Idp Education Pty Ltd, and Xero. The Motley Fool Australia owns shares of AFTERPAY T FPO. The Motley Fool Australia has recommended Avita Medical Limited, Flight Centre Travel Group Limited, and NIB Holdings Limited. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Bruce Jackson.

More on Share Market News

man and woman calculating financial assests
Share Market News

DroneShield hits $200m milestone as 9.2m options vest and 2025 expense revealed

DroneShield reached a $200m milestone, vesting 9.2m employee options and booking a $23.5m non-cash expense in 2025.

Read more »

growth in housing asx shares represented by little wooden houses next to rising red arrow
Share Market News

Shares vs. property: Which delivered the best capital growth in 2025?

We compare the capital growth of ASX 200 shares to Australia's metro and regional property markets.

Read more »

A man cheers after winning computer game while woman sitting next to him looks upset.
Share Gainers

Here are the top 10 ASX 200 shares today

It was a happy end to the trading week today.

Read more »

Three business people stand on platforms in the desert and look out through telescopes.
Best Shares

1 ASX dividend share set to excel long term, even while down 13%

Good quality shares don't often sell off at this margin.

Read more »

Two people comparing and analysing material.
Broker Notes

Buy, hold, sell: Netwealth, Santos, and South32 shares

Morgans has given its verdict on these shares following updates.

Read more »

Emotional euphoric young woman giving high five to male partner, celebrating family achievement, getting bank loan approval, or financial or investing success.
Share Gainers

Why Life360, Northern Star, Objective Corp, and Rox shares are charging higher today

These shares are having a strong finish to the week. But why?

Read more »

A woman sits on sofa pondering a question.
Share Market News

Insignia Financial responds to ASX on disclosure and governance

Insignia Financial updates shareholders on ASX compliance and new governance controls around performance rights disclosure.

Read more »

A male investor wearing a blue shirt looks off to the side with a miffed look on his face as the share price declines.
Share Fallers

Why Capstone Copper, Dateline, DroneShield, and Lindian shares are falling today

These shares are ending the week in the red. But why?

Read more »