MACD Signals from Exponential Moving Average Crossovers

Summary

This document explains MACD as a way to compare a short-term and a long-term exponential moving average of closing prices. Their difference, DIFF, is smoothed into a signal line called DEA; MACD is calculated from the gap between DIFF and DEA. The standard periods described are 12, 26, and 9. The note interprets a change in MACD from negative to positive as a possible buy signal and a change from positive to negative as a possible sell signal. It also outlines signal-line crossovers, with direction and whether both lines are above or below zero used to distinguish entry and exit conditions.

The document mentions backtests on a single Chinese stock and on a selected group of stocks, but supplies no performance figures or methodology details. It therefore teaches indicator construction and candidate rules rather than demonstrating their profitability. MACD signals can lag price moves, and the note does not address transaction costs, risk controls, parameter selection, or out-of-sample validation.

Key ideas

• MACD compares short- and long-period exponential moving averages of closing prices.
• DIFF is the short-period EMA minus the long-period EMA, and DEA smooths DIFF.
• The example uses 12, 26, and 9 periods for its MACD components.
• A DIFF crossover of DEA can be interpreted as a potential buy or sell signal.
• The document mentions stock backtests but provides no results or validation details.

Tags

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