You can hold them in 1 week, if they dont recover, you should sell them and invest in others.
One week is too short mate and maybe price will be more fluctuating for few days. Its suggested that holding can take longer time of patience so that won't regreat that decisions of early selling. Wait for that moment of price to surge back to higher value so that you will benefit the good price and earn good profit.
One week only?
You need to hold Bitcoin for a lot longer than one week. Try one year, at least. And only then you might get a big ROI, but you should ways more like ONE DECADE if you want to get rich.
Bitcoin has largest market among digital currencies and this is the reason why it keeps increasing in value all the time. The market demand of bitcoin is damn high than any other coin.