Monday SPX open====1877.86 SPX close===1877.17 SPX low=====1867.04 SPX high====1877.87 Tuesday SPX open====1878.26 SPX close===1867.63 SPX low=====1863.88 SPX high====1882.35 Wednesday SPX open====1866.15 SPX close===1868.20 SPX low=====1854.38 SPX high====1868.38