The fluctuations observed during the day:

===============================================================================
                                  Current Session                     Prior Day
           Open    High     Low    Last    Time     Set     Chg     Vol     Set
===============================================================================
Oct'12    75.12   76.20   75.12   75.59   14:30   75.59     0.09    54    75.50
                                         Aug 09
Dec'12   75.80   77.07    75.45   75.95   14:30   75.95    -0.05 11302    76.00
                                         Aug 09
Mar'13   76.42   77.55    76.08   76.65   14:30   76.65    -0.21  2923    76.86
                                         Aug 09
===============================================================================