LONDON/WASHINGTON, July 10 : Global stocks rose on Friday but Wall Street opened in mixed territory, as AI-related enthusiasm over the market debut of South Korean chip bellwether SK Hynix led investors to brush off tit-for-tat attacks between the U.S. and Iran. The Dow Jones Industrial Average was up 0.16 per cent in early trading, to 52,572.69, while the S&P 500 was mostly flat, climbing just 0.06 per cent to 7,548.32. The Nasdaq Composite was down 0.25 per cent, to 26,141.32. While the renewed back-and-forth attacks have further eroded the fragile three-week-old U.S.-Iran ceasefire, markets have mostly taken developments in the Middle East in their stride, although oil prices and their inflationary impact are back on investors' radar.INVESTORS RESILIENT TO GEOPOLITICAL RISKS European sh