Anyone else have a 20% rule?

It’s a weird kind of learned behavior, but whenever I see this notification it almost always follows with a reversal. So most of the time I will seriously consider immediately selling. Only once on Robinhood have I seen a 50% notification. I always long my options and will hold past 20% in those cases, but it’s a philosophical lead indicator for me. Just wondering if anyone does the same thing.

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