5min20

5min20 is shorthand for a specific tool: the 20-period simple moving average plotted on a 5-minute chart. A moving average takes a set number of past price bars (here, 20) and averages their closing prices, then plots that average as a line that updates as each new bar forms. On a 5-minute chart, each bar represents five minutes of trading, so the 5min20 line reflects the average closing price over the last 100 minutes (20 bars times 5 minutes each).

Traders use this line as a reference point for where price "should" be if it were trading in a normal, orderly way relative to its recent past. When price is trading far above or below this line, it is described as extended, meaning it has moved further from its recent average than usual, often on strong momentum or a news-driven spike. Some traders watch for price to return toward the 5min20 line as a natural point where a stretched move might pause, reverse, or find support or resistance.

The naming convention extends to other timeframes: 1min20 is the same 20-period average calculated on 1-minute bars (covering the last 20 minutes), and 20min20 is the same calculation on 20-minute bars (covering roughly the last 400 minutes, or about 6.5 hours). The number before "min" sets the bar size, and the number after is always the period count, which stays at 20 in this naming scheme. Switching timeframes changes how far back the average looks and how sensitive it is to recent price swings—shorter timeframes react faster but produce more false signals, longer timeframes are smoother but slower to react.

The nuance beginners miss is that a moving average is a lagging tool: it is built entirely from past prices, so it does not predict where price will go, it only describes where price has already been on average. Using it to gauge "how extended" a stock is or to set a profit target is a judgment call based on typical distance from the average, not a fixed rule, and different traders will treat that distance differently depending on the stock's volatility.