why are you selling at 0.9X? Why are you assuming everyone is a day-trader trying to immediately cash out? If you believe the stock is worth a lot more than 0

why are you selling at 0.9X? Why are you assuming everyone is a day-trader trying to immediately cash out? If you believe the stock is worth a lot more than 0.5X and you're generally a buy-and-hold type investor, buy it at 0.5X and wait. If the exchange chooses to break the 0.5X trade it costs you only the opportunity cost of being able to buy something else at a good price during the next few days. And if they allow the trade, you got a great security for half price -- so you can be patient and sell at a later date, or hang on to the asset for whatever dividends it might pay out.