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To: waverider who wrote (1946)8/19/1998 7:01:00 PM
From: SJS  Read Replies (1) | Respond to of 14427
 
I think I know what the problem is. With options you can't always look at the last trade unless you KNOW the option and know it has recently traded and when. Many options lay dormant, and then someone sells or buys them days after the last person did.

To alleviate this, use the BID as your marker for price, not last trade.