The Elder Impulse System was designed by Alexander Elder and featured in his book,
Come Into My Trading Room.
According to Elder, "the system identifies inflection points where a
trend speeds up or slows down". The Impulse System is based on two
indicators, a 13-day exponential moving average and the
MACD-Histogram.
The moving average identifies the trend, while the MACD-Histogram
measures momentum. As a result, the Impulse System combines trend
following and momentum to identify tradable impulses.
The Elder Impulse System can be used across different timeframes, but
trading should be in harmony with the bigger trend. Elder recommends
setting your trading timeframe and then calling it intermediate.
Multiply this intermediate timeframe by five to get your long-term
timeframe. Traders using daily charts for an intermediate timeframe can
simply move to weekly charts for a long-term timeframe. The choice is
not as clear cut for smaller or longer timeframes. A little judgment is
required. Traders using 10-minute charts to chart their "intermediate"
timeframe can use 60-minute charts for their "long-term" timeframe.
Investors using weekly charts can base the bigger picture on monthly
charts. Once the trading timeframe is decided, chartists can then use
the longer timeframe to identify the bigger trend.
A buy signal occurs when the long-term trend is deemed bullish and the
Elder Impulse System turns bullish on the intermediate term trend. In
other words, the weekly chart has to show a clear uptrend in order for a
daily buy signal to be valid. Daily buy signals that happen when the
weekly chart is not in a clear uptrend are ignored.
A sell signal occurs when the long-term trend is deemed bearish and the
Elder Impulse System turns bearish on the intermediate term trend. For
example, the weekly chart has to show a clear downtrend in order for a
daily sell signal to be valid. Daily sell signals that happen when the
weekly chart is not in a clear downtrend are ignored