The fluctuations observed during the day:

===============================================================================
                                  Current Session                     Prior Day
           Open    High     Low    Last    Time     Set     Chg     Vol     Set
===============================================================================
Oct'12    74.79   75.87   74.79   75.83   14:30   75.83      1.04   17    74.79
                                         Aug 29
Dec'12    75.64   76.88   75.40   76.65   14:30   76.65      1.03   9401  75.62
                                         Aug 29
Mar'13    76.45   77.59   76.27   77.27   14:30   77.27      0.86   1151  76.41
                                        Aug 29
===============================================================================