Stray asterisks are very suspicious. I see one in the Inkling question, but I don't see the footnote itself. It has a "background information" section, but all their questions do. Is "last price" a technical term? If the usual term is "settlement price," and GJ doesn't make that clear, then it is quite suspicious.

Here are two two more Inkling questions with asterisks. One has an explicit footnote. The other is a change to the question.