At yahoo finance, the S&P 500 closed at 1497.74.
At stockcharts.com, the S&P 500 closed at 1497.74.
But looking at an IB account, they show the 500 at 1498.75, with the ES at 1513.75! With about $13.00 premium for tomorrow, shouldn't ES have closed about 1510.74?
Today, as I watched an IB...