Saturday, July 31, 2010

Technical Indicators - Momentum, Buy and Sell Signals

An example of the Momentum indicator is shown below in the chart of the E-mini Nasdaq 100 Future:


Potential buy or shortsell entries are shown above in the chart.


Momentum Buy Signal

When the Momentum indicator crosses above the zero line. The crossing of the zero line implies that the price of the stock, future, or currency pair is reversing course, either by having bottomed out or by breaking out above recent highs, a bullish signal.

Momentum Sell Signal

Momentum indicator crosses below the zero line. A cross of the zero line can generally mean two things: the future, currency pair, or stock's price has topped out and is reversing or that the price has broken below recent lows, either way, a bearish signal.

Momentum Exit Signals

Generally speaking the buy and sell signals discussed above are poor exits, either selling out of a long position or buying to cover a short position. By the time the Momentum indicator returns back to the zero line, most or all of the profits have probably eroded, or even worse the trader has let a winning position turn into a losing position.
When the Momentum is reversing course and is heading back towards the zero line, that means profits have been eroded. How much of a retracement back towards the zero line before an exit is triggered is up to the trader. Another alternative is to draw a trendline; when the trendline is broken, that could be the exit signal. Like most technical analysis indicators, interpreting them is part science, part art form.