I recently got started in trading stocks and today was my first day. My Robinhood account was set up and I bought some stocks for $6.93 each.. or so I thought. Two seconds after putting in my buy order at 6.93 I get a buy confirmation message.. and paid 7.12 a share. With a stock that ended today at 7.01 I should have made profit, but because of that blunder made loss. What gives? Can anyone explain why Robinhood did this, or offer an alternate brokerage? I like Robinhood for its $0 trade cost because I'm only trading with $100 to start while I get my feet wet investing.