Bitcoin keep on falling down and no sign of raising. How long can we keep holding?
As of now we can never tell how long we have to hodl our coin, we have to hodl our coin until the time that we will earn a big profit. There is no time frame in hodling our coin as long as we earn that is the time we can exchange it.
As long as you see the market condition and especially how your coins is growing or falling in price - then you make your decision