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Trend Entries and Exits with 9/21 EMA and Price Crosses

Article Strategy library · Author: ChaoZhang

Summary

This trend-following system uses 9-period and 21-period exponential moving averages to define market direction. When the shorter EMA is above the longer one, a close crossing above the short EMA opens a long position; when it is below, a close crossing beneath the short EMA opens a short position. A reverse cross of price and the short EMA closes the corresponding position.

The document describes adjustable EMA lengths and price sources, and gives a short BTC/USDT futures backtest interval, but includes no performance statistics. It warns that moving averages lag and that the approach may generate repeated false signals in ranging markets. Results may depend on parameter choices and market conditions. Suggested improvements include volume or trend-strength filters, volatility-aware sizing, and more flexible profit-taking, none of which are part of the described entry and exit rules.

Key ideas

  • The 9-period and 21-period EMAs establish the direction in which the strategy trades.
  • Price crossing the short EMA in the trend direction triggers an entry.
  • A reverse price cross of the short EMA closes an open position.
  • The strategy has no explicit profit target and may produce false signals in sideways markets.
  • The published BTC/USDT futures backtest interval has no accompanying performance results.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.