One such company is the Cronos Group (CRON), a medical cannabis firm that has exploded into the news this week. Warning! GuruFocus has detected 4 Warning Signs with CRON. Click here to check it out.

Key Levels to Watch Immediate Resistance: $0.1065 (horizontal support turned resistance) Key Resistance: $0.1326 (0.618 Fibonacci retracement) Immediate Support: $0.0950 (local horizontal support) ...

Cronos made its big debut in the stock market on Tuesday, trading on the NASDAQ exchange. Shares surged 20.34% on Wednesday and saw additional gains in after-hours trading.