You can hold a penny like GRDO for a few days as long as it has upward movement. Soon as you see a down trend...SELL or you will get left holding the bag while the shorts are telling you to be patient....ALL THE WHILE THEY ARE SELLING AT HIGHEST PRICES AND COVERING AT LOWEST PRICE. Think of yourself buying at stock at .002 and selling at .008. Shorts borrow other peeps shares from their brokers and cover when the stock loses momentum. They can destroy a penny stock completely. I learned this the hard way. lol:-D Shorts will start selling this at highest price possible, and as stock creeps down they sell more and more until it tanks to previous run price. Say before run price was .0003 and runs to .0009. Shorts sell at .0009 and cover at .0003. They make s 6 thousand dollar profit. Some of those shortest are on this board pretending to be longs. Sub-human types with no souls are wolves masquerading as helpful peeps.