First, let’s assume I use a margin account but also do not have 25k.

Suppose today, I own 500 shares of AAPL and they’re currently worth $50 each.

Scenario 1: Tomorrow, I sell the 500 shares at $50 each. 30 minutes later, the price drops to $40 each and so I buy back 500 shares. 30 minutes later, the price drops to $30 and I buy another 500, **totaling 1000 shares**. Do I get marked PDT twice?

Scenario 2: Tomorrow, I sell the 500 shares at $50 each. 30 minutes later, the price drops to $40 each and so I buy back 200 shares. 30 minutes later, the price drops to $30 and I buy another 300, **totaling 500 shares**. Do I get marked PDT twice?

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