Traders betting against pot stocks made almost $1 billion in 2019. Here are the 8 stocks most responsible for those gains.

Ticker: GWPH

Total year-to-date profit: $54 million

Source: S3 Partners

Ticker: HEXO

Total year-to-date profit: $79 million

Source: S3 Partners

Ticker: CTST

Total year-to-date profit: $82 million

Source: S3 Partners

Ticker: CGC

Total year-to-date profit: $135 million

Source: S3 Partners

Ticker: TLRY

Total year-to-date profit: $174 million

Source: S3 Partners

Ticker: CRON

Total year-to-date profit: $217 million

Source: S3 Partners

Ticker: ACB

Total year-to-date profit: $265 million

Source: S3 Partners