Between 1998 and 2010, impact investment funds outperformed funds of the same size, according to the Wall Street Journal. Impact-focused funds of $100 million or less posted a 9.5 percent pooled net internal rate of return, outperforming the 4.5 percent delivered by funds of the same size that were not focused on impact investments. The industry, however, is still in its nascent stage and data remains somewhat scarce. In an article for Quartz, William Burckart contends that wealth management professionals are hesitant to propose impact investment funds to their clients for several reasons, including: