Most of the altcoins that we have right now that are on top, especially those that were introduced late part of the year 2016, have their All Time Highs in the first and early part of the second quarters of the year 2017. Some of the coins, in fact a good number of them, that reached their ATH during these months have not yet returned to such ATH until now. If you bought your altcoins during these times then you might really need to wait a little more time. Perhaps in the same months next year we will be seeing the same performance.