S&P 500 gives up gains after topping 5,500 for first time ever By Investing.com
Investing.com - The S&P 500 fell after briefing broke the 5,500 mark for the first time ever on Thursday, as Nvidia gave up gains, dragging the broader technology sector lower.
By 14:04 ET (18:04 GMT), the index was down 0.4% after…