You can buy Hive Dollars (HBD) with Binance Dollars (BUSD) at par on Ionomy.com. There is a $400 HBD to buy $400 BUSD at 1:1. There is a 0.25% charge from the exchange itself rather than the order, so the total cost to you for $100.25 BUSD for $100.25 HBD.
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From @leprechaun