Microseconds Matter: How Wall St Crosses the Atlantic

The world of finance is obsessed with speed. The faster you get information, the faster you act on it and the higher your PNL. Imagine the CME in Chicago releases an unexpected economic number (say, U.S. jobless claims). Futures on the S&P 500 react instantly in Chicago. But stocks tied to the S&P (like big tech names) trade in New Jersey exchanges. If your fiber line is 3 ms faster, your system…