Weight of money is a very powerful indicator used predominantly by Betfair traders. If proportionally more people are looking to lay on an event the price is likley to go up, while if more people are looking to back a selection the price will go down.

With the weight of money (WOM) settings, there are seven formulas any one of which can be selected to calculate the weight of money value and drive the indicators found on BetGizmo forms such as the Betfair trading ladder.