In afternoon trade, the S&P/ASX 200 Index (ASX: XJO) is on course to record a small decline. At the time of writing, the benchmark index is down 0.1% to 9,018.4 points.
Four ASX shares that are not letting that hold them back today are listed below. Here's why they are rising:
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Australian Clinical Labs Ltd (ASX: ACL)
The Australian Clinical Labs share price is up 6% to $2.69. Investors have been buying this pathology diagnostics company's shares following the announcement of an on-market share buyback ahead of its annual general meeting. Australian Clinical Labs will buy back up to 19.5 million shares, representing approximately 10% of its outstanding share capital. It stated: "The Board believes that a share buy-back program provides an opportunity to enhance value for ACL shareholders, without compromising the company's strong balance sheet, whilst also delivering accretive investment opportunities."
Karoon Energy Ltd (ASX: KAR)
The Karoon Energy share price is up 6% to $1.52. This morning, this energy producer released its third quarter update and revealed production of 2.59MMboe. This was down 12% quarter on quarter due to issues with two Bauna Project wells and a scheduled shutdown of the Who Dat facility. Nevertheless, sales revenue increased 3% quarter on quarter to $164.1 million. Karoon Energy's CEO, Dr Julian Fowles, said: "Despite 12% lower production, sales volumes declined just 3%, reflecting Bauna cargo timings in 2Q25 and 3Q25, while 3Q25 sales revenue rose 3% to US$164.1 million, largely due to higher average Baúna realised oil prices."
MA Financial Group Ltd (ASX: MAF)
The MA Financial share price is up 9% to $9.83. This has been driven by the release of the asset manager's third quarter update. MA Financial revealed that its assets under management (AUM) grew to $13.3 billion at the end of September. This is up from $9.9 billion a year earlier. This reflects record gross fund inflows of $2.2 billion (ex. institutional) for the nine months to 30 September 2025.
Silex Systems Ltd (ASX: SLX)
The Silex Systems share price is up 12% to $8.69. This morning, this uranium enrichment technology company revealed that an independent review confirmed that its technology has achieved Technology Readiness Level 6 (TRL-6). Silex's CEO, Michael Goldsworthy, said: "We are thrilled to receive the independent assessment and validation that the SILEX laser-based uranium enrichment technology has achieved TRL-6, marking a major de-risking milestone in the commercialisation program for the SILEX technology."
