How long does it take to trade my bitcoins after a sell transaction is initiated?

Within a minute after receiving your bitcoins a trade is automatically initiated. If you initiate a Sell transaction through the form on the Sell page, the bitcoin price for your transaction will be locked in for a short period so you know exactly what your payout will be. Alternatively if you don't use the Sell form to lock your bitcoin price, your bitcoins will automatically be traded when HappyCoins receives them. Your payout is then based on our market reference price of that moment.