Dumped: Blackmores (ASX:BKL) and Sirtex (ASX:SRX) exit the ASX100

Blackmores Limited (ASX:SRX) and Sirtex Medical Limited (ASX:SRX) have been dropped from the ASX100 index following their recent share price declines.

a woman

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

The ASX released its latest quarterly update this morning, containing some major changes to the index's composition.

Blackmores Limited (ASX: BKL) and Sirtex Medical Limited (ASX: SRX) have been dropped from the S&P/ASX 100 (ASX: XTO) (INDEXASX: ^AXTO) following the recent declines in their share price. Blackmores and Sirtex shares are down 39% and 45% respectively over the past year.

Elsewhere, there were plenty of other changes with Coca-Cola Amatil Ltd (ASX: CCL) and SEEK Limited (ASX: SEK) being dropped from the S&P/ASX 50 (ASX: XFL) (INDEXASX: ^AXFL). A2 Milk Company Ltd (Australia) (ASX: A2M) is being added into the S&P/ASX200 (ASX: XJO) (INDEXASX: ^AXJO) at the expense of OFX Group Ltd (ASX: OFX), which was dropped.

In and of itself, being added or removed from an index is little more than a reflection of how much a company's share price has risen or fallen recently. Some companies, like Ausdrill Limited (ASX: ASL) are being added back to the index after being dropped in earlier times.

Being added or removed to an index can result in opportunities for shareholders however, as many funds have mandates that limit them to holding ASX100 or ASX200 shares, for example. Thus, being removed from an index would force funds to sell, and this can result in changes to prices – especially among smaller companies with lower trading volumes.

Blackmores in particular could see a sharp price decline, as it is a fairly illiquid company with only a small amount of shares on issue. A couple of others to keep an eye on for bargains could be Capitol Health Ltd (ASX: CAJ) and Lifehealthcare Group Ltd (ASX: LHC), although many of the companies being dropped appear to be due to actual business issues, not just increased pessimism among investors.

Motley Fool contributor Sean O'Neill owns shares of A2 Milk, LifeHealthcare Group Limited, and Sirtex Medical Limited. The Motley Fool Australia owns shares of A2 Milk. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Bruce Jackson.

More on ⏸️ Investing

A white and black robot in the form of a human being stands in front of a green graphic holding a laptop and discussing robotics and automation ASX shares
Technology Shares

Joining the revolution: How I'd invest in ASX AI shares right now

Advances in artificial intelligence (AI) could usher in a new industrial revolution. Here’s how you can invest in it.

Read more »

Close up of baby looking puzzled
Retail Shares

What has happened to the Baby Bunting (ASX:BBN) share price this year?

It's been a volatile year so far for the Aussie nursery retailer. We take a closer look

Read more »

woman holds sign saying 'we need change' at climate change protest
ETFs

3 ASX ETFs that invest in companies fighting climate change

If you want to shift some of your investments into more ethical companies, exchange-traded funds can offer a good option

Read more »

a jewellery store attendant stands at a cabinet displaying opulent necklaces and earrings featuring diamonds and precious stones.
⏸️ Investing

The Michael Hill (ASX: MHJ) share price poised for growth

Investors will be keeping an eye on the Michael Hill International Limited (ASX: MHJ) share price today. The keen interest…

Read more »

ASX shares buy unstoppable asx share price represented by man in superman cape pointing skyward
⏸️ Investing

The Atomos (ASX:AMS) share price is up 15% in a week

The Atomos (ASX: AMS) share price has surged 15% this week. Let's look at what's ahead as the company build…

Read more »

Two people in suits arm wrestle on a black and white chess board.
Retail Shares

How does the Temple & Webster (ASX:TPW) share price stack up against Nick Scali (ASX:NCK)?

How does the Temple & Webster (ASX: TPW) share price stack up against rival furniture retailer Nick Scali Limited (ASX:…

Read more »

A medical researcher works on a bichip, indicating share price movement in ASX tech companies
Healthcare Shares

The Aroa (ASX:ARX) share price has surged 60% since its IPO

The Aroa (ASX:ARX) share price has surged 60% since the Polynovo (ASX: PNV) competitor listed on the ASX in July.…

Read more »

asx investor daydreaming about US shares
⏸️ How to Invest

How to buy US shares from Australia right now

If you have been wondering how to buy US shares from Australia to gain exposure from the highly topical market,…

Read more »