MACD Indicator Warm-Up and EMA Initialization
Summary
The document notes that MACD values may take time to settle at the beginning of a price series. Its explanation is that MACD depends on exponential moving averages, which are updated recursively from the previous estimate and the new price. As a result, early indicator readings can be affected by how those averages are initialized.
It advises allowing at least the slow-period number of bars before treating the indicator as showing normal values, and says more bars may be needed. The note offers no worked example, empirical comparison, or guidance for choosing a warm-up length beyond this rule of thumb. It is a concise implementation caveat rather than a complete MACD trading method, and it does not discuss signal interpretation, parameter selection, or performance.
Key ideas
- MACD relies on exponential moving averages that update recursively as new prices arrive.
- Early readings may be distorted while the averages are settling.
- Allow at least the slow-period number of bars for the indicator to produce more typical values.
- The document gives no evidence for a precise warm-up length beyond this guidance.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.