I had a question for those you trade NYSE stocks and have access to the regional exchanges. From what I understood I thought ARCA took over the PSE exchange. So if other firms see a quote for PSE is it really someone entering the order on ARCA. I am asking this because the firm I trade thru now I only see the ecns, NAS and NYSE however I can post bids and offers on ARCA on the NYSE stock exchange but wanted to know if they are seen by other traders at other firms as PSE or are they just sent to the book of ARCA and only hit by other traders crossing the ARCA book.