Update: Top unusual option activity

By David Russell,

Shutterstock photo

As of today's market close, here are the top 10 names showing unusual option activity on tradeMONSTER's LiveAction data system.

Gold Fields (GFI): Option volume 1,329 percent above average. The October 17 calls were bought against open interest and the January 20s were sold, indicating that a covered-call trade was rolled to the higher strike. GFI rose 3.21 percent to $17.38.

Sensata Technologies (ST): Option volume 1,018 percent above average. A block of 2,000 September 30 puts was rolled to the September 25 strike. ST fell 1.60 percent to $28.34.

Medivation (MDVN): Option volume 1,017 percent above average. A block of September 10 calls was bought for $6.80. MDVN rose 0.45 percent to $15.62.

BioDelivery Systems (BDSI): Option volume 836 percent above average. More than 2,500 October 2.50 calls were purchased, mostly for $1.15 as an investor positioned for upside in the stock. BDSI rose 8.71 percent to $3.37.

Kinross Gold (KGC): Option volume 731 percent above average. The November 19 calls were bought and the February 21s were sold, resulting either from the rolling of a covered call or a bullish diagonal spread. KGC rose 5.12 percent to $17.65.

Rounding out the rest of the top 10 are:

  • iShares MSCI Germany Index ETF (EWG): Option volume 727 percent above average.
  • Collective Brands (PSS): Option volume 724 percent above average.
  • Lennar (LEN): Option volume 712 percent above average.
  • Legg Mason (LM): Option volume 706 percent above average.
  • Lincare Holdings (LNCR): Option volume 681 percent above average.

closing volumes

(Chart courtesy of tradeMONSTER)

The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.

Copyright © 2010 OptionMonster® Holdings, Inc. All Rights Reserved.

This article appears in: Investing Options
Referenced Stocks: BDSI , GFI , KGC , MDVN , ST

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