Some of them yes some not, just when i though i can make little profit yesterday the price of coin im holding go down rapidly

choose wisely mate that all i can say
Yep not every altcoin does really have show their potential this year but it was a good news for all ethereium coin holders because it already reached 1k dollar. Ico's will also increase the value of their tokens since the market is pumping eth coins value. I think that eth coins does really have the potential to surpass bitcoins in the future.
If you have to take a look at it, altcoins rises last week of November up to now. My speculation says that it coincides when bitcoin price is going up so fast. So it has something to do with more people finding bitcoin and other altcoins a good way to earn a lot of money. But I also noticed that pumpers will choose a coin, do their thing and get out and put it on the next coin. That's why altcoins thrives, but with the current market crash, the landscapes has changes.
With that said, 2018 will be big for altcoins, but you have to be very careful what coins to put your money with. I advise top 10 coins to be safe. If you are going to funds shitcoins, just watch how it moves, you don't want to be trap specially during P&D.