Heartsoft, Inc. (HTSF: Pink No Information) | Venue Change Fri, Oct 30, 2020 12:00 - Heartsoft, Inc. ( HTSF : OTC Link) - Venue Change - The symbol, HTSF, no longer trades on Grey Market. As of Fri, Oct 30, 2020, HTSF trades on OTC Link. You may find a complete list of venue changes at otcmarkets.com .