Menu What is spread and how is it calculated? Spread is the difference between the buying price (ask price) and the selling price (bid price) of the product. It is calculated as: Spread = ask price - bid price Related articles What are long (buy) and short (sell) positions? How do I find my trading account number? What are ask price and bid price? What products does Vantage offer? What execution method do you use? Email Us to Create aSupport Ticket Email Now