OneChicago, a securities finance exchange announced its April 2018 volume of 514,176, a decrease of 66% year-over-year and about 26% month-on-month. March saw a 53% drop in volume. OneChicago is a CFTC and SEC regulated exchange offering Single Stock Futures (SSF), a Delta One product, on approximately 1,800 equities, including ADRs and ETFs.