Why is Six Flags Entertainment Corporation (SIX) down -34.10% from the day 1 this year?

Why is Six Flags Entertainment Corporation (SIX) down -34.10% from the day 1 this year?
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https://investchronicle.com/2020/11/11/why-is-six-flags-entertainment-corporation-six-down-34-10-from-the-day-1-this-year/