It goes without saying that in forex trading, when doing technical analysis, the price of a currency pair can move anywhere between zero and to an unspecified upper limit on the charts. For example, based on today’s prices in GBP/USD at around 1.298, a 1.37 would be regarded as a high price. However, how about 1.40, or 1.45? While these numbers may seem unrealistic (according to history), and they are all ‘high’ by definition, then we would have some degree of difficulty in placing a stop loss or assign a certain profit on the charts. There needs to be a more realistic and practical range that can be classed as truly high.