hi @mnopq, I don't follow the development of Bitcoin Diamond closely. But if you are in doubt about selling or holding, look at what price you bought it at, if the current price is higher than your purchase price or if it is lower. If it is higher and the profit is enough for you, you can sell, if the price is lower than your purchase, you can hold to see if it increases in the future. Always do your best for yourself and don't let anyone tell you what to do with your money. Do Your Own Research.