The original HiLo Activator was a three day simple moving average calculated from the daily highs and the daily lows. The HiLo Activator was introduced by Robert Krausz with his FibonacciTrader and first described by him in 'The New Gann Swing Chartist', which was published in the TASC magazine (Stocks & Commodities V16:2, pp 57-66) in 1998.
10 This is a new implementation of the Gann HiLo activator for NinjaTrader 7.