https://www.reuters.com/article/us-robinhood-ipo/robinhood-seeks-up-to-35-billion-valuation-in-mega-u-s-ipo-idUSKBN2EP0XA >(Reuters) -Robinhood Markets Inc is targeting a valuation of up to $35 billion in its initial public offering in the United States, the company revealed in a filing on Monday, setting the stage for one of the highly anticipated stock market listings of the year.