Investors are centred on worries that the US electoral shakeup will hit key AI investments seen as important to economic growth. Investors fear Tuesday’s Democratic gains in the US midterms could threaten key AI investments seen as vital to economic growth. Tokyo [Japan], July 17, (ANI): Asian shares slumped on Friday, led by Nikkei, which plunged more than 4 per cent as the tech selloff deepened with investors opting to observe caution.