In afternoon trade, the S&P/ASX 200 Index (ASX: XJO) is on course to start the week with a disappointing decline. At the time of writing, the benchmark index is down 0.7% to 8,912.6 points.
Four ASX shares that are not letting that hold them back are listed below. Here's why they are rising:
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4DMedical Ltd (ASX: 4DX)
The 4D Medical share price is up 33% to 76 cents. This morning, this respiratory imaging technology company announced that its ventilation-perfusion product, CT:VQ, has received U.S. Food and Drug Administration (FDA) 510(k) clearance. It notes that this represents a historic moment in respiratory diagnostics, as CT:VQ becomes the world's first non-contrast imaging modality capable of delivering quantitative ventilation and perfusion analysis directly from standard chest CT scans. CEO and Founder, Andreas Fouras, said: "FDA clearance of CT:VQ is a defining milestone for 4DMedical and for lung health. For the first time in history, doctors can order a lung perfusion scan without requiring their patients to be injected with any radioactive tracer or contrast media."
Genesis Minerals Ltd (ASX: GMD)
The Genesis Minerals share price is up 10% to $4.96. This follows the release of drilling results from its Laverton and Leonara projects. The gold miner's managing director, Raleigh Finlayson, said: "Genesis is focused on maximising financial returns and organic growth generates some of the strongest financial returns in mining. We have the assets and infrastructure to deliver this and that is why we have doubled our annual exploration budget. This investment is already delivering outstanding drilling results which illustrate the immense scope to grow the inventories at both Laverton and Leonora."
Harvey Norman Holdings Ltd (ASX: HVN)
The Harvey Norman share price is up 9% to $7.52. This appears to have been driven by a positive reaction to the retail giant's FY 2025 results from brokers. For example, this morning, the team at Citi responded to its results by retaining its buy rating and lifting its price target from $5.80 to $7.70.
RPMGlobal Holdings Ltd (ASX: RUL)
The RPMGlobal share price is up 23% to $4.64. The catalyst for this is news that the mining software company has received a takeover offer from US giant Caterpillar Inc (NYSE: CAT). An offer of $5.00 cash per share has been tabled. In response, RPMGlobal has entered into an exclusivity arrangement with Caterpillar. The company stated: "Subject to the parties entering into a binding SID on terms consistent with the Indicative Proposal and following completion by Caterpillar of confirmatory due diligence, the RPM Board intends to recommend the Proposed Transaction to RPM shareholders and to vote any RPM shares they hold in favour of the Proposed Transaction."
