Calls Days until expiration: 10
Symbol & Strike Last Chng %Chng High Low Bid Ask Volume Open Int
CENX Feb 20 2010 7.50 3.40 -7.80 -69.64 3.40 3.40 3.70 4.50 36 36
CENX Feb 20 2010 10.00 1.75 0.64 57.66 1.75 1.50 1.70 1.85 14 189
CENX Feb 20 2010 12.50 0.30 0.15 100.00 0.40 0.20 0.25 0.35 651 6,328
CENX Feb 20 2010 15.00 0.05 — — 0.05 0.05 0.05 0.05 1 8,631
CENX Feb 20 2010 17.50 0.05 0.01 25.00 0.05 0.05 0.05 0.05 10 5,141
CENX Feb 20 2010 20.00 0.02 — — 0.02 0.02 0.05 0.05 2 1,373
CENX Feb 20 2010 22.50 0.01 -0.01 -50.00 0.01 0.01 0.05 0.05 6 599
Puts Bold and highlighted options are "At the Money"
Symbol & Strike Last Chng %Chng High Low Bid Ask Volume Open Int
CENX Feb 20 2010 7.50 — — — — — — 0.05 — —
CENX Feb 20 2010 10.00 0.15 -0.15 -50.00 0.20 0.15 0.10 0.20 30 1,289
CENX Feb 20 2010 12.50 1.11 -0.59 -34.71 1.11 1.11 1.05 1.20 10 1,785
CENX Feb 20 2010 15.00 4.20 1.81 75.73 4.20 4.20 3.10 3.60 15 5,022
CENX Feb 20 2010 17.50 7.00 0.64 10.06 7.00 7.00 5.70 6.00 8 602
CENX Feb 20 2010 20.00 8.35 4.05 94.19 8.35 8.35 8.00 9.00 4 165
CENX Feb 20 2010 22.50 9.76 5.26 116.89 9.76 9.76 10.50 11.50 5 60
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