they changed their default marketcap calculation to "market cap by available supply" recently.
This is the boring and simple answer.
Ripple is what it is, maybe it will work though I don't really see how.
what they said about bitcoin in 2011 (warning: they are completely hilarious!):bjornb: "They are trading at a ridiculous 70 cents USD which is hilarious for a currency that no one uses."
party: "i wonder if these people all share the same mental illness, or if it's more of a general hodgepodge of stupid."
Gullanian: "Yeah the problem with this currency is it's pretty much untested and extremely volatile, and a better one might come along, or a security flaw might be discovered which will render the currency worthless in seconds."
Scottyy: "Who is funding bitcoin? You can not make money out of thin air. What does Paypal do with the bitcoins people exchange for cash?"
source:
http://forumserver.twoplustwo.com/30/business-finance-investing/bitcoins-digital-currency-1011408/