The cannabis sector is experiencing extensive growth all over the world right now. The future looks even better, as consumers – particularly in North American recreational markets – are set to fork over $57 billion a year for their cannabis by 2027, according to Arcview Research.

But as bright and lucrative as the future prospects of marijuana are, there's no getting around the fact that right now is a pretty tough time to be a cannabis investor.

Consider that the $782 million ETF Managers Tierra XP Alternative Harvest ETF – the richest cannabis-heavy exchange-traded fund bought and sold in the United States – is down some 16.5% for the year.

Now, marijuana stocks are all affected to one degree or another by the domestic and international stressors pushing down stocks across the board, but it seems like all sorts of challenges have cropped up for an industry with such explosive potential.

So I'll tell you what I told folks at the recent National Institute for Cannabis Investors retreat that just wrapped up in Las Vegas: what's causing the trouble – and most importantly, when we can expect the juicy gains to start up again… Full Story