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A comment on High Frequency Trading Development Kit. Parent comment

Re:High Frequency Trading Development Kit by shn21 on Wednesday March 30, 2011 @11:23AM (#2387626)
How one donwvotes? I do not see a downvote link?
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Re:High Frequency Trading Development Kit by JonnieCache on Wednesday March 30, 2011 @11:59AM (#2387821)
You need 500 karma to downvote.
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