Even if you have a modest amount to invest, building a small position in great companies can get you started.While some growth stocks are getting more love from investors than others, great businesses can persist through all market cycles. As summer is in full swing, you might be considering what stocks you want to add to your portfolio in the near future.Even with a more modest amount of investment capital, like $500, you can adhere to investment strategies like dollar-cost averaging to compound your holdi ...