We use cookies to run essential site features, understand how visitors use AutoEdges, and — if you allow it — show relevant ads. See our Cookie Policy for details.
A moving average smooths out price by plotting the average price over a set number of periods, updating as new candles form. It's one of the simplest ways to see the underlying trend without the noise of every individual candle.
A Simple Moving Average (SMA) weighs every period in its lookback equally. An Exponential Moving Average (EMA) weighs recent periods more heavily, so it reacts faster to new price action — at the cost of being a bit more prone to false signals in choppy markets.
A common technique is watching for crossovers — for example, when a faster-moving average crosses above a slower one, some traders treat that as an early signal of a potential trend change. Like any single indicator, it's rarely used in isolation.
Real-World Example
A trader compares a 50-day SMA and a 50-day EMA on the same stock chart during a sharp two-day selloff. The SMA barely reacts, since it weighs all 50 days equally and the recent drop is diluted across the whole period. The EMA, weighting recent price more heavily, bends downward noticeably faster, giving a trader using the EMA an earlier warning that short-term momentum has shifted, at the cost of being more prone to whipsaws during choppy, directionless periods.
This lesson is free — no purchase needed to keep learning.