over several months time. If there is gap they always close it. If there was just a penny left, but they managed to do some fake print at the day end they would get back to that bid and close it even if it takes several days. Not the same with URZ.
When I first started trading this stock, I learned the same. This MM has a very distinct personality with how he chooses to move the stock. Watching this stock, preparing to buy in, was a very different experience verses actually owning it.