I don't think the coins below the rate of 1$ are said to be stable and powerful coin for bulk trading investors .
Here in my opinion only few coins are available which is better to buy in the current time .
Dgb , Pak , blry , trump , bsd , pivx , xbyte , bcn , Putin , creva doge , posw ,  Sia coin , str , ldoge , 1337 , rdd etc .
These are those coins which have really a good technology based algorithm and I don't think that Thier any risk to have such coins in 2-3$ of value in btc .
Here I myself holding all these coin ( except pivx ldoge ) .
But I have about 0.005btc in every coin and Thier price are always increasing and decreasing and giving a decent amount of profit daily because overall the market will get net gain in the investment .