The S&P/ASX 200 Index (ASX: XJO) is back on form and charging higher on Tuesday. In afternoon trade, the benchmark index is up 1.1% to 8,875.2 points.
Four ASX shares that are rising more than most today are listed below. Here's why they are climbing:
Appen Ltd (ASX: APX)
The Appen share price is up 12% to $1.88. Investors have been buying this artificial intelligence data services company's shares since the release of a strong quarterly update last week. Appen reported revenue of $73.4 million for the three months. This was a 10% lift on the prior corresponding period and a 33% increase on the third quarter of FY 2025. Commenting on the quarter, Appen's CEO, Ryan Kolln, said: "Q4 was a strong finish to the year for both our China and Global businesses. Appen China exited the quarter with an annualised revenue run-rate growing to over $135 million – a pleasing result, providing strong momentum heading into FY26."
Imricor Medical Systems Inc (ASX: IMR)
The Imricor Medical Systems share price is up 2% to $1.99. This morning, this medical device company revealed that Oklahoma Heart Institute (OHI) has joined the VISABL-AFL clinical trial. It notes that this will support the U.S. FDA approval process for Imricor's ablation products. OHI is now the fourth U.S. site to join the trial. Imricor's Chair and CEO, Steve Wedan, added: "Oklahoma Heart Institute represents a highly sophisticated cardiology-led model of care, with the clinical vision and infrastructure already in place to support advanced MRI-guided procedures. The fact that cardiology owns and operates their MRI system creates a streamlined environment for innovation, reducing organisational complexity while enabling physicians to focus on delivering the best possible outcomes for patients."
Qoria Ltd (ASX: QOR)
The Qoria share price is up 19% to 40 cents. This follows news that the cyber safety company is merging with its peer, Aura. It is a US-based provider of intelligent online safety solutions to individuals and families. Aura will acquire all Qoria shares through an all-scrip deal at a price equivalent to 72 cents per share. Qoria's CEO, Tim Levy, said: "The internet was created to connect us, yet online safety has eroded, making trust paramount for parents, guardians and organisations, in general, for the protection of our activities online. The combination of Aura and Qoria pioneers a lifelong digital safety ecosystem; a new category that meets the urgent need for technology, education, and trust to protect people – confidently and safely, throughout their entire lives."
Xero Ltd (ASX: XRO)
The Xero share price is up 3% to $96.46. Investors have been buying this cloud accounting platform provider's shares following the release of an update on its AI and US plans. Xero also reiterated its FY 2026 guidance. It advised that total operating expenses as a percentage of revenue is expected to be around 70.5%, including the Melio business. In addition, management reaffirmed its aim of more than doubling its FY 2025 group revenue in FY 2028.
