OR (Open Range)
Open range for a timeframe is the range established during the initiation process in STOPD. It is a yardstick good for measuring the price behaviour dynamically. For example, for intraday trading purpose, the E-mini S&P and other US stock market indices have their OR established within the first 30 minutes to an hour. For Forex, it is the first 4 hours based on 24 hour trading, using 5 pm Eastern Time as the starting time for a trading day.