RSI Value
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Signal
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Avg Gain / Avg Loss
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When Should You Use This?
Use RSI to time entries and exits. RSI above 70 suggests the stock is overbought (potential pullback). RSI below 30 suggests it's oversold (potential bounce). RSI is the most popular momentum indicator in trading.
How It Works
1
Enter Price Data
Paste at least 15 closing prices, comma-separated. More data gives smoother, more reliable RSI.
2
Set Period
14 is the standard period. Shorter periods (7-9) give more signals but more noise. Longer (21+) gives fewer but more reliable signals.
3
Read the Signal
RSI > 70 = overbought (may pull back). RSI < 30 = oversold (may bounce). RSI divergence from price is one of the most powerful signals.
Frequently Asked Questions
RSI (Relative Strength Index) measures the speed and magnitude of recent price changes on a scale of 0-100. Developed by J. Welles Wilder in 1978, it's the most widely used momentum oscillator.
Overbought (RSI > 70) means the stock has risen quickly and may be due for a pullback. Oversold (RSI < 30) means it has fallen quickly and may bounce. These are not guaranteed reversal signals.
Yes. In strong uptrends, RSI can stay above 70 for weeks or months. This is why RSI works better as a confirmation tool than a standalone signal.
When price makes a new high but RSI makes a lower high, it's bearish divergence — a warning that momentum is weakening. The opposite (bullish divergence) signals potential reversals.
Both are momentum oscillators. RSI measures speed of price change. Stochastic measures where the close is relative to the high-low range. RSI is smoother; Stochastic gives earlier signals.