OTC Markets OTCPK • USD Psychemedics Corporation (PMDI) Follow Compare 1.7500 -0.0100 (-0.57%) At close: January 13 at 3:00:00 PM EST Conversations Community Insights Related Tickers BNR Burning Rock Biotech Limited 6.55 +0.61% IDXG Interpace Biosciences, Inc. 1.0000 +78.38% XGN Exagen Inc. 3.0000 -3.85% ERF.PA Eurofins Scientific SE 46.08 -5.98%