CVS price on December 8 was $73
CVS Price on January 6 is $72
If you can exit your position (with profits presumably) and go catch a 10, 20, 30, 80, 100, 200% runner elsewhere and come back and get in at the same price again, why not?
*Assuming the people doing this are aware of their risks and are just playing a different version of a casino game through the stock market and not "actually" investing