Yes of course bitcoin is stable. Bitcoin is running now for many long years which makes this stable. Yes before we can say that we have doubts if bitcoin will be stable because of luck of users, but now as it grows the population of bitcoin also grows. Before bitcoin is the one who is chasing the users but now the game had change because the users are now the on who are chasing bitcoin. Well this is due to increasing benefits also bring by bitcoin to its users. Every one now wants to be with the growth of bitcoin and to excel in life in terms of financial stability.