There is a reason behind Moderna's 89% return

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Moderna skyrocketed in August.
The news was good, but
usually, when a stock surges like that, a massive crash follows as a standard pattern,
but it managed to hold its position.
(Maintaining a horizontal level near the upper candle of the upward move)
So, I entered with a 2-month outlook.
Two months later, an 89% return...

Please share your own entry know-how with me ㅠㅠ