Key Points Building a $1 million portfolio isn't as daunting as it seems. But it will require discipline, consistency, and a willingness to "set it and forget it." Even a modest monthly investment into a diversified stock fund over the long term can create huge wealth. 10 stocks we like better than Vanguard S&P 500 ETF › There's this misconception that building a $1 million portfolio is a herculean task. If you wait until the end of your prime saving years, then it probably is. But given enough ...