Returns on stocks in the S&P 500 have averaged 8% annually over the last 20 years. That’s pretty good considering two monstrous stock market crashes during the period.

That annual gain pales in comparison to the average for a portfolio of startup investments, with research on angel investing by Willamette University showing gains of about 25% annually. While most of your equity crowdfunding investments will likely bust or return less than your original investment, the stars could end up returning 20- and 30-times your money.