We have a few delistings and halts going on today. First, despite the bad news for HD-DVD that surfaced last week, there were more titles available on HD-DVD than Blu-Ray at the year's end. And so our HDVSBLU prop pays out at $100. The market missed out on this one: trading was halted at $47.25 per share.

Despite high hopes, the NASA-sponsored Space Elevator Games failed to produce viable space elevator technology for the third year in a row. The event concluded this morning with no winners in either the robotic climber or the vertical tether competition, and our SEGWIN stock was delisted. The value of the stock—trading at $30.75 prior to its halt—dropped to $0.