The answer is not bid-ask spreads, as I said in my comment. The answer is probably substantial hidden fees. But your original post quoted 38% ignoring the fees. If you don't know the details of the bets, it's not surprising that you think that they are good opportunities.

The fee (I think) is you have to pay 10% of any profits you earn if you buy and then sell a contract. The bid-ask spreads change a lot.

Open Thread, Feb 8 - Feb 15, 2016

by Elo 1 min read8th Feb 2016224 comments

4


If it's worth saying, but not worth its own post (even in Discussion), then it goes here.


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