Sorry but I think with a high degree of confidence that this is bogus. If that was true and you suffered a loss because of that information discrepancy then you can sue IB and will absolute win that case. Similar case was settled and IB had to pay several millions. If I remember clearly then it was a wrong expiration date posted on their contract details for an options contract.
Not saying such error may never repeat itself but you make it sound like as if there are numerous cases like that which I don't believe holds true.
Not saying such error may never repeat itself but you make it sound like as if there are numerous cases like that which I don't believe holds true.
On TWs type in the ticker of the stock you are interested in, right click, select Contract Info, than press Details, it will open a link indicating a bunch of information about the stock, including its margin treatment.
It looks better than it is though, as some of the margin information you find is different than the margin treatment tws eventually applies.
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