DEVON ENERGY CORP long ... The exchange rate moves in a dual wave motion. The ATR (D1) is 1.66 times the previous value. This means that the distance of the exchange rate movement can be greater than 1.66 times the wave (BC) wave period as in the (0A) wave period. This may also have the consequence that the wave (BC) is twice as large as the wave structure (0A). The (BC) wave periodus target price is 56usd.