Unless you buy and sell the same day or week.... Why bother when the SP moves down or up a few pennys.....
In technical analysis, the SP will trade in a "trading zone" untill the support or the resistance is broke and the SP moves to another "trading zone". In short term you will the small picture but in long term you will get the Big picture and the actual trend of the SP :-)
Normal behavior for all stock weither it's a good stock or a bad stock.
Good news for the fondamental analysis, SZLS is making lots of money thru COVID testing. StageZero is cashflow positive and for this type of sector it's a pretty good!
So enjoy life and let SZLS do their job without focusing only on the SP every minute,hour,days....