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RSI and moving averages from your closing prices.
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Relative volatility index
Was the recent volatility on up closes or down closes? Dorsey's RSI of volatility, from your closes.
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The closes
The relative volatility index
The relative volatility index is 71.0, above 50: more of the recent volatility came on up closes.
- The direction
- It was 68.4 on the bar before, so it is rising.
- The 50 line
- It last crossed above 50 12 bars ago. 19 of the last 20 readings were above 50.
- Read it with care
- Dorsey built it to confirm other signals, not to trade alone: a buy from another tool with the RVI above 50, a sell with it below. It measures where the volatility fell, not how much there was.
The close, its 10-bar standard deviation and the 14-bar RVI on the last bars. The last bar is marked.
| Bar | Close price | Deviation | RVI |
|---|---|---|---|
| 5 ago | 2,399.10 | 26.80 | 65.8 |
| 4 ago | 2,412.50 | 29.34 | 69.4 |
| 3 ago | 2,430.80 | 30.52 | 72.7 |
| 2 ago | 2,427.40 | 29.42 | 65.4 |
| 1 ago | 2,432.40 | 25.86 | 68.4 |
| Last | 2,443.60 | 24.56 | 71.0 |
Education only, not investment advice. The answer comes from the numbers you typed in, not from your account or the market. Simulated results are hypothetical and have limits: real trading has slippage, gaps, changing results and emotions. Trading leveraged products can lose money quickly, including all of it. Risk warning
Educational only, not financial advice; trading involves risk.
The RSI of volatility
Donald Dorsey's relative volatility index works like the RSI, but in place of the size of each move it uses the standard deviation of the last 10 closes, counted as up on a rising close and down on a falling one. Above 50, more of the volatility came with rising closes; below 50, with falling ones. Dorsey meant it as a filter: take buy signals from another tool only with the RVI above 50, and sell signals only below it. It is not the relative vigor index, which also goes by RVI and compares each close with its open.
Compare it with the RSI calculator, see how big the moves are with the historical volatility calculator, and whether volatility is high or low for this market with the volatility regime tool.
Not advice. Arithmetic on the closes you type; past readings do not promise future ones.
Next tools
Historical volatility calculator
The real swing of a price from its closes.
Volatility regime calculator
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Baroq never holds your money and never trades for you. Educational only, not financial advice; trading involves risk.