The benchmark US equity indices booked another round of fresh record intra-day and closing highs to open the week - Dow edged +66-points or +0.14% to 46,381.54. Apple Inc rallied +4.31% to be the leading performer in the 30-stock index following reports of strong demand for the iPhone 17 in its first weekend of sales, aided by consumers seeking to replace aging devices. The stock is closing in on a fresh record closing high (after touching their highest intra-day level since December 2024 overnight at US$256.64) and market capitalisation of US$4 trillion. ‘Magnificent Seven’ mega-capitalisation technology peer Nvidia Corp rallied +3.93% to a record closing high of US$183.61 after the company said it’s going to invest US$100B in OpenAI - the maker of ChatGPT - for the buildout of data centres based around the company’s artificial intelligence (AI) chips. The partnership "enables OpenAI to build and deploy at least 10 gigawatts of AI data centres with NVIDIA systems representing millions of GPUs [graphics processing unit] for OpenAI's next-generation AI infrastructure." Nvidia added it "intends to invest up to US$100B in OpenAI progressively as each gigawatt is deployed." However, Amazon.com Inc fell -1.66% as investors assessed the potential fallout from President Trump's shock decision late on Friday (19 September) to raise the H-1B visa application fee to US$100,000. Amazon employs ~14K staff on such visas.