I don't post often, but I am watching and reading

I don't post often, but I am watching and reading daily. I have a question for the board. I am on TDA and have noticed this AM that the volume has been at 414,29k for quite a while and the SP has changed 3 times. Are there trades going on that I don't see or is it because someone keeps changing the Ask? Or is it that the feed to update is just slow? I'm grateful for all of the conversation and positive vibes coming from you all. Thanks in advance,

Mike