BIOA is the company’s ticker symbol. However, because they filed for bankruptcy protection, the Q has been added to the symbol to identify it as being in a bankruptcy status. The company has had the bankruptcy dismissed by the court, but has to send the court order stating it has been dismissed to FINRA to get the Q removed. Many ppl are posting and tweeting using both symbols so that if/when the Q does get removed, the DD in posts and tweets will still be easily accessible when searched by either symbol.