Advanced Container Technologies Inc. (MDTRD: Pink Current) | Symbol Change Fri, Nov 06, 2020 12:00 - Advanced Container Technologies Inc. ( MDTRD : Pink Current) - Symbol Change - The symbol, MDTRD, is no longer a valid symbol for Advanced Container Technologies Inc.. As of Fri, Nov 06, 2020, the new trading symbol is ACTX. You may find a complete list of symbol changes at otcmarkets.com .