The Securities and Exchange Commission today announced that Prosper Funding LLC will pay a $3 million penalty for miscalculating and materially overstating annualized net returns to retail and other investors.   San Francisco-based Prosper is a marketplace lender that, through its website, offers and sells securities linked to the performance of its consumer credit loans. According to the SEC's order, from approximately July 2015 until May 2017, Prosper excluded certain non-performing charged off loans from its calculation of annualized net returns that it reported to investors. The order finds that, as a result, Prosper reported overstated annualized net returns to more than 30,000 investors on individual account pages on Prosper's website and in emails soliciting additional investments from investors