Moving averages (SMA / EMA)
SMA 20 / 50 / 200 · EMA 9 / 20 / 50 / 200
The average closing price over the last N sessions, replotted each day. The 200-day average is the standard long-term trend marker; the 50-day is the medium-term one. An EMA weights recent sessions more heavily, so it turns faster than an SMA of the same length.
How to read it. Price above its 200-day average is conventionally read as a long-term uptrend, below it as a downtrend. The average itself often acts as a reference level traders watch, but it is a description of the past, not a prediction — averages lag price by construction.