RSI calculator
Wilder's RSI from your own closing prices
Paste at least 15 closing prices to get the current RSI, the average gain and loss behind it, and whether the reading sits in overbought or oversold territory.
- RSI
- 85.8
- Reading
- Overbought territory
- Average gain
- 0.693
- Average loss
- 0.114
What the inputs mean
- Closing prices
- Comma or line separated, oldest first.
- Period
- Lookback length; 14 is the standard.
Formula
Worked example
15 closes rising from 100 to 112 with two down days → An RSI in the low 70s — overbought territory.
Questions people ask
Is an RSI above 70 a sell signal?
No. It describes crowding, not a verdict. Strong trends hold RSI above 70 for weeks, which is why Autonium reads it inside the trend rather than on its own.
Limitations
Every result here is arithmetic on the numbers you enter. It carries no view on any specific security, assumes returns are steady when real returns are not, and ignores taxes, slippage and commissions. Use it to size and sanity-check, not to forecast.
Now run it on a real ticker
Score any name free, then bring the number back here.
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Understand the inputs
Autonium publishes research, not recommendations. Scores, factors and written reads describe historical and current data and are not buy or sell advice. Not financial advice. Market data is refreshed on a schedule and may lag. See our methodology and disclosures.