For ETFs that close at the same time as their index, daily returns are typically almost identical. For all the other ETFs, with different closing times, which can include commodity and bond indexes, tracking difference is a more relevant calculation to use.

Wall Street rebounded higher on Friday, a day after the Nasdaq Composite saw a dramatic session due to a tech-led sell-off. The current market boost has been fueled by reports that the Trump administration is considering allowing the sale of H200 GPUs to China.