Monday SPX open====1832.31 SPX close===1826.77 SPX low=====1823.73 SPX high====1837.16 Tuesday SPX open====1828.71 SPX close===1837.88 SPX low=====1828.71 SPX high====1840.10 Wednesday SPX open====1837.90 SPX close===1837.49 SPX low=====1831.40 SPX high====1840.02 Thursday SPX open====1839.00 SPX close===1838.13 SPX low=====1830.38 SPX high====1843.23