Well Bitcoin is the most valuable cryptocurrency.Those who got in at the right time have been making alot of money.Since Bitcoin there have and i guess there will be other crytocurrencies linked to Bitcoin.All these crytocurrencies seem to also be doing well because their values do raise over time.
And so the answer is yes cryptocurrencies linked to Bitcoin do well in the cryptocurrency market.Some even go up in value not long after their introduction to the market.And these are cryptocurrencies like Bitcoin Cash,BitConnect,Bitcoin Plus and Bitcoin Dark.If there are others that i have failed to mention please let me know.