It states: "This is because companies that are no longer operating may still have outstanding registered stock, which can be traded until the company has the shares deregistered or the stock's registration is revoked."
You do understand that ARIOQ is a Form 15 company - which means their stock was Deregistered - the article you provided states very clearly that it is about registered stock only.
As you can see from the following:
"Reporting Status Dark: Alternative Reporting Standard Deregistered a/o Jan 22, 2010"
Here is a link to the Form 15 that ARIO filed to Deregister their stock!
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