Good for you that in spite of this bearish market, you can still earn. Higher tier ICos doesn't mean that are already exempted in fluctuations. Remember that when it fluctuates, expect all coins become red. Because traders nowadays makes their altcoin's price base on the market cycles of Bitcoin. If Bitcoin fluctuates, same goes for the altcoins.
True, but higher tier ICOs are more likely to stay stable/grow due to the overwhelming demand. Let's take NEX for example. Their lottery allowed 10k people to join, out of the 50k+ that want to get in. High chance it will pump after ICO instead of dump.