See the Trend Clearly from the Fluctuations
Among many technical analysis tools, the Simple Moving Average (SMA) is favored by many traders for its ease of understanding and use. Its core function is to smooth out price fluctuations, helping traders identify the true trend direction of an asset.
The calculation logic of the Simple Moving Average is quite straightforward: add up the closing prices of the past N trading days, then divide by N to get a data point. As trading days progress, the oldest prices are continuously removed, and the latest closing prices are added. Connecting these data points sequentially forms the moving average line.
For example, using 15 days of data, if the closing prices for the first three weeks of an asset are:
First week (5 days): 30, 35, 38, 29, 31
Second week (5 days): 28, 33, 35, 34, 32
Third week (5 days): 33, 29,