ArTStAu is an Aroon Trading Strategy. It uses Aroon 48 period to determine buy or sell positons. If Aroon Down is 100 in 48 period, a buy position is opened and existing sell position is stopped. If Aroon Up is 100 in 48 period, a sell positon is opened and existing buy position is stopped. For each 100 (Aroon Up or Down), the equity is tested, if the equity is below the Initial Equity, the position is closed and a new position is openned with an increment of 1.7 times of the last lost amount. This process is repeated until Aroon 100 test is associated to equity above Initial Equity.