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RSI calculator
The Relative Strength Index (Wilder's method) from your own closing prices, with what the number means.
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Questions
What does RSI tell me?
How strongly prices rose versus fell recently, from 0 to 100. Above 70 is often called overbought, below 30 oversold - a reason to look closer, not a signal on its own.
Which method is used?
Wilder's smoothing over 14 periods, the standard used by most charting platforms.
Free to use, nothing is stored. Educational information only - not financial or tax advice.