The ETFMG Alternative Harvest ETF /zigman2/quotes/204332491/composite MJ -0.31% , which tracks the cannabis sector, lost 0.7% in morning trade Wednesday, as a surge in shares of component Philip Morris International Inc. /zigman2/quotes/201611010/composite PM -0.88% wasn't enough to prevent an 8th-straight decline, and a potential 2nd-straight record closing low. Since inception in December 2015, the previous longest losing streak was 7 sessions, which occurred 4 times, in October, July and June of 2018 and January 2016. Among its most active components Wednesday, shares of Philip Morris rallied 6.3% while Altria Group Inc. /zigman2/quotes/208895754/composite MO -0.18% slipped 0.6%, as the companies called off merger talks. Elsewhere, the U.S.-listed shares of Aurora Cannabis Inc.'s /zigman2/quotes/210559470/composite ACB -2.09% /zigman2/quotes/203734337/delayed CA:ACB -2.32% shed 1.4%, Canopy Growth Corp. /zigman2/quotes/200603886/composite CGC -1.03% /zigman2/quotes/202205609/delayed CA:WEED -1.61% edged up less than 0.1% and Tilray Inc. /zigman2/quotes/209129655/composite TLRY -1.56% gave up 0.7%. Over the past three months, the ETF has tumbled 30%, as shares of Aurora fell 37%, Canopy dropped 40% and Tilray lost 43%, while the S&P 500 /zigman2/quotes/210599714/realtime SPX +0.78% gained 2.0%.