There is a different stock that went from where we are here, to over a dime.
Market Cap hit 1 billion at 0.10 per share, and it's currently at about 0.04 per share.
I'd argue the same thing that I argued when it happened there - a 1 billion market cap is unreasonable given the type of company and their accomplishments.
That's to say, if this company ever hits the levels required for a 1 billion market cap, sell, unless they've made progress that goes above and beyond reason.
That said; the current market cap is lower than is reasonable, and those who are patient will be rewarded for it.