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Re:Show HN: Bitcoin derivatives – call and put options by bjterry on Monday March 24, 2014 @06:14PM (#7462046)
I just noticed that they don't actually provide an order book or any sort of bid-ask spread information. That makes price discovery extremely challenging, and makes this even more difficult for providers of liquidity (traders, dealers, etc.). Charitably, I assume this is coming and they haven't had time to implement it yet.
Re:Show HN: Bitcoin derivatives – call and put options by ciscoriordan on Monday March 24, 2014 @06:16PM (#7462058)
The order book is at https://derivabit.com/order_book. You can drill down into specific contracts for more details.

There is also a summarized version built into the trade form.

Re:Show HN: Bitcoin derivatives – call and put options by bjterry on Monday March 24, 2014 @06:26PM (#7462124)
Oh, I see. I didn't realize those line-items were clickable. For the interface of the order book you should really check out how it's displayed on a trading system or something (with bids and asks in separate columns), although it's impossible for me to know how your system would look with more orders attached.