Yes Victor almost everyone of those charts i traded during those periods.
Anything under $1 i'll have my eye on, does'nt have to be Otcbb necessarily.
Almost every day something will be up over 100%,occasionally you'll see 400%,disregarding total pigs down the .0001 area.
Its not all roses tho,It is a world of its own and they can bite back,but it is a tradable area.