About GBYTE I am wondering, there has been a massive distribution of 'free' Bytecoins to us BTC holders recently. So what about there being an excess of supply - couldn't that depress or even drop the price?
To see how much it drops on each airdrop look at the historical prices on each full moon in the past 6 months. That gives you a good idea of how much you're going to drop percentage-wise on each full moon. Keep in mind though that if you own byteball in your own wallet you'll get 20% on top of it (I think that's how it works) + blackbytes. Also don't forget to link your bitcoin addresses to your byteball address if you're still holding bitcoins. That gets you 62.5mb/btc. Not bad at all.
Feathercoin... I rest my case.
It's pretty stable compared to most crypto. That's why I hold some (albeit not 7.5% of my portfolio. Closer to 0.5%).