If you are day trading A Gap down ( price opens significantly lower than previous close) is for buying.
Typically, you'll see the opening lower price, followed by a lower low...on the one minute chart.
Once you see the bottom, marked by a higher high after a lower low, you can buy in..
But often the stock price move up...and then tanks below the lowest low, and keeps on dropping..
Rarely are gaps filled---especially after poor earnings.
We have an all-time low of .50 cents...That is the lowest support below .95 cents
To trade a gap up or down, you must use a candlestick chart on the 1 minute time frame.
To be safe, wait 1 hr, using the candlestick chart, and one minute time frame---that often identifies the low(support) and high ( resistance)
If Hexo Gaps down, shorters will tank the share price .20 cents or more..
But I am just speculating----as I have not seen the pre-market bids and asks...
Potential bloodbath.