If you look at a time and sales you'll see a ton of trades go off on the market 'D'. If you go to Sterling's website you'll see 'D' is denoted as FINRA. So I called and talked to the rep (who was very helpful) and he said that 'D' used to be the ATF (alternative display faculity). And then he said it is a non specific nasdaq exchange. I still didn't get what that was and he explained well you see for example "EDGA... that is a specific exchange", all the smaller exchanges are classified under 'D' which would be nasdaq non specific. So he emailed me a list of exchanges, which would be nasdaq non specific. I see these. I know these are routing strategies. Is this what would classify under 'D'??? NSDQADOT Nasdaq Singlebook - DOTA NSDQDDOT Nasdaq Singlebook - DOTD NSDQDOTI Nasdaq Singlebook - DOTI NSDQIDOT Nasdaq Singlebook - DOTI NSDQMDOT Nasdaq Singlebook - DOTM NSDQIO Nasdaq Singlebook - Imbalance Only NSDQMOPP Nasdaq Singlebook - MOPP NSDQSAVE Nasdaq Singlebook - SAVE NSDQSCAN Nasdaq Singlebook - SCAN NSDQSMART Nasdaq Singlebook - SMART NSDQSTGY Nasdaq Singlebook - STGY NSDQTFTY Nasdaq Singlebook - TFTY or would these me classified under 'D'??? DARK NFS - DARK FADE NFS - FADE NFS NFS - Fidelity PDQARCA PDQ ARCA ROUTE PDQBATS PDQ BATS Route PDQEDGA PDQ EDGA Route PHLX Philadelphia Stock Exchange PIPE Pipeline QIKD QIKD - Nexa/ITS QIKD Route QUIK QUIK - Nexa/ITS QUIK Route ATSBOOK Sungard ATS route DISP Sungard ATS route DPING Sungard ATS route DSWEEP Sungard ATS route There is just so much Stuff traded on 'D' I just need to know what the hell is D?????