This is the thing right, you can bet your bottom dollar that management are aware of the hot copper sentiment and will release something to prop up the share price. Then holders will feel it's somewhat okay before it continues to slide. It's often harder to decide when to sell than to buy. Put yourself in a cash position and ask yourself would you buy BUB now? If not then you might have the answer to your question.
BUB Price at posting:
38.5¢ Sentiment: None Disclosure: Not Held