Yes BrightFuture! It would appear that AMBS 'has' switched exchanges from the OTCBB over to the OTCQB and I also believe this is an upgrade and a good thing. Perhaps it will alleviate some of the short selling and Market Maker manipulation which has been occurring in the stock. The only downside I'm seeing from this changeover right now is it seems to be causing some confusion with the DTC so they have placed a chill order restriction on the settlement of shares so myself and others (Solantey) have been unable to place any BUY orders for AMBS at TDAmeritrade. I am hoping this is only temporary and that the chill order will be removed soon. I will speak with Amarantus IR sometime on Monday to see if I can get an update on what they are trying to do about it.