Photoelectron Corp. (PECN: Pink No Information) | Venue Change Fri, Jun 19, 2020 12:00 - Photoelectron Corp. ( PECN : OTC Link) - Venue Change - The symbol, PECN, no longer trades on Grey Market. As of Fri, Jun 19, 2020, PECN trades on OTC Link. You may find a complete list of venue changes at otcmarkets.com .