The fluctuations observed during the day:

===============================================================================
                                  Current Session                     Prior Day
           Open    High     Low    Last    Time     Set     Chg     Vol     Set
===============================================================================
Oct'12    75.92   76.07   74.40   76.07   14:30   76.07    -0.38    45    76.45
                                         Aug 22
Dec'12    76.90   77.05   74.90   76.97   14:30   76.97    -0.33   20068  77.30
                                         Aug 22
Mar'13    77.17   77.61   75.61   77.57   14:30   77.57    -0.17   4111   77.74
                                         Aug 22
===============================================================================