It can move significantly on what appears to be relatively low volume, when in fact, by percentage of the float, that is not really the case.
Imagine when the average daily volume is upwards of 200K or more per day.
Last
6.05
Change
+0.15
Bid
6.05
Ask
6.24
High
6.19
Low
5.90
Volume
13,487
Time (ET)