Acorns announced a Series E funding round on Monday that brings its valuation to $860 million.

According to CNBC, the new $105 million investment came from Comcast Ventures, NBCUniversal, Bain Capital Ventures, BlackRock, TPG's Rise Fund, DST and Michael Dell's MSD Capital.

Acorns is the largest and fastest growing investment app that allows people to round up their daily purchases and automatically Invest the Change into a commission-free diversified portfolio of index funds offered by the world's top asset managers. Founded in Newport Beach, CA in February 2012, by son and father team Jeff and Walter Cruttenden. Acorns takes the guess work out of investing and provides a simple entry-point for anyone to get started using the Acorns app on iPhone or Android. The app and financial engine were built with natural human behavior in mind to help inspire realistic investment strategies that can be held for the long term. Customers accumulate fractional shares and automatically invest and save into a portfolio constructed by world-renowned Nobel Laureate economist Dr. Harry Markowitz. Acorns' smart portfolio algorithms automatically work behind the scenes, helping people build wealth, pennies at a time.