If you have a stock in a US brokerage and sell it, you owe taxes on that sale, leaving less to invest in the next stock. If you have a PDR in the Fundacion, and you sell it, you can invest the money in a different type of PDR...ALL of it. It's just like an IRA in that you can reinvest ALL of your profit, and you don't owe taxes until you pull your money out.
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