If you're any bit unsure, by all means cover your investment. I know of 1 investor with 1.3M shares who's followed SFIO for a year, bought as low as .0023, still has not taken a dime out, and says to watch for .25 within 1-2 weeks. I tend to favor his opinion.
.25 equals around a $140M marketcap, which in theory is paltry for a company that solves the cancer risks of a highly addictive habit.
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