GreenGro Technologies Inc. closed at 4-cents on 31 December 2013.
On 8 January 2014 it closed at 80-cents, . . . a 1900% gain ! ! !
"GreenGro Technologies Inc. provides management services for the planning, construction, staffing and operation of medical marijuana dispensaries and nurseries on behalf of non-profit patient co-operatives. The Company operates non-profit centers, returning all unused patient 'contributions', on a pro-rata basis to each co-op member in the form of additional product."
Ref: Bloomberg
Pr'bly something to do with Colorado; they'll likely change their mission statement to include recreational weed.
More from: Bloomberg