Every cryptocurrency has dropped significantly since yesterday :) Not just Ripple, Stellar and Litecoin.
If marketcap drops, almost every virtual currency drops.
As someone mentioned, that was caused by more reasons:
Facebook blocked crypto ads, Prime minister of India has announced some kid of crypto ban in India(which showed was not true), Tether case as well.
But that’s not all. Market cap is highly influenced by big companies, big crypto holders, which can cause this drops. Who knows, sometime big holders want to buy at “discount”. Put everything together and you have -30% dip in one day.
I still think prices are at discount now and investing right now after dip is not bad idea :) 