US equity markets retreated as concerns about valuations for artificial intelligence (AI) stocks continued to weigh on sentiment and with investors eyeing Nvidia Corp’s (-2.81%) third quarter result after the closing bell of tonight’ AEST session - Dow rose -499-points or -1.07%, having been down almost -700-points at its worst levels of the session. E-commerce and cloud giant Amazon.com Inc lost -4.43%, while International Business Machines (IBM) Corp (-2.43%), Honeywell International (-2.36%) and UnitedHealth Group Inc (-2.17%) were among seven Dow components that fell over >2%.