The Relative Strength Index (RSI) is a momentum indicator, scaled from 0 to 100, that measures the speed and size of recent price changes over a set window (14 periods is the common default). It rises as upward price momentum builds and falls as downward momentum builds.
Conventionally, an RSI above 70 is read as "overbought" — the price has risen fast enough recently that some kind of pause or pullback is considered more likely — and below 30 as "oversold," the mirror case. Those thresholds are a convention, not a law: a strongly trending stock can sit above 70 or below 30 for an extended stretch without reversing, so RSI is generally read alongside price action and other indicators rather than as a standalone buy or sell trigger.
RSI is one of many momentum oscillators; it appears on WOWS's technical analysis panel alongside moving averages and other indicators feeding into a single summary reading.