Live: US tech stocks crumble in AI sell-off, ASX set to open flat

The news of a cheap and effective Chinese AI app has sent US tech stocks tumbling, while the ASX looks set for a flat opening.  Follow the day’s events and insights from our business reporters on the ABC News live markets blog.  The news of a cheap and effective Chinese AI app has sent US tech stocks tumbling, while the ASX looks set for a flat opening.  Follow the day’s events and insights from our business reporters on the ABC News live markets blog.  Stock Market, Financial Markets, Currency, Company News, Business, Economics and Finance, Economic Trends and Indicators, Cryptocurrency Latest business news