Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: A major investor in leading e-cigarette-maker Juul has seen its stake in the company drop by more than two-thirds.

Vaping crackdown costs Juul investor more than $8bn