The cannabis sector traded mostly lower Tuesday, with the ETFMG Alternative Harvest ETF down 1.0% as 24 of 38 components traded lower. The Horizons Marijuana Life Sciences Index ETF dropped 1.4%, with 43 of 57 components falling. The declines come the ETFMG ETF gained 4.6% and the Horizons ETF advanced 5.5% over the past two sessions, while the S&P 500 tacked on 1.5%. Among some of the more-active pot stocks, Aurora Cannabis Inc. fell 2.6%, Canopy Growth Corp. shed 2.1%, Cronos Group Inc. gave up 2.5%, Tilray Inc. slumped 5.3% and Canopy Rivers Inc. lost 1.4%. The ETFMG ETF has now lost 10.3% over the past three months, while the S&P 500 has gained 3.7%.