Ziopharm Oncology (ZIOP): Option volume 2,465 percent above
average. An investor sold the January 5 calls and bought the
October 5 calls, apparently rolling a short position. The October 4
puts also traded against open interest. ZIOP rose 0.23 percent to
CenterPoint Energy (CNP): Option volume 2,016 percent above
average. The November 22.50 calls and November 20 calls traded
heavily against existing open interest. CNP rose 4.39 percent to
Affymax (AFFY): Option volume 1,687 percent above average. An
investor sold the November 5 puts for $0.50 against existing open
interest. AFFX rose 1.69 percent to $5.10.
Realty Income (O): Option volume 1,654 percent above average.
Positions were opened in the December 30 puts and the December 35
calls. O rose 0.66 percent to $33.58.
NetSuit (N): Option volume 1,534 percent above average. Unusual
activity was detected in the November 30 puts, the January 25 calls
and the January 30 calls. N fell 2.94 percent to $28.39.
Rounding out the top 10 were:
(Chart courtesy of
- Focus Media (FMCN): Option volume 1,164 percent above
- BioDelivery Sciences International (BDSI): Option volume 914
percent above average.
- Family Dollar (FDO): Option volume 771 percent above
- Coventry Health (CVH): Option volume 745 percent above
- Interpublic Group (IPG): Option volume 737 percent above
The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of The NASDAQ OMX Group, Inc.
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