Why HOKU jumped?

HOKU provides necessary basic materials and tech for solar and clean energy sectors. Do you see solar sector stocks like FSLR, SPWR, TSL, STP, CSUN, SOLF are all up? So will be HOKU. HOKU's current market captial is only 180m. Any one of solar sector stocks is bigger than it. So HOKU has reason to jump up. HOKU recently signed sell contracts with a total of 165 millions for 7 years.