I use TD's Think or Swim, sometimes the platform, but it also feeds to a different platform called Medved Trader. They only post about 15 minutes or less of trades depending on volume. I saw it pop when it hit, but also see it on the IHUB trades link which is delayed for me because I'm free. All trades must be listed at some point, not necessarily during the day or individually, like t trades, etc...but, short sells and covers will only post as short volume, the cover will not post so as to not double count the volume.