RSI & Momentum

The Relative Strength Index (RSI) measures the speed and magnitude of price changes on a 0–100 scale. Above 70 is "overbought" — possibly due for a pullback. Below 30 is "oversold" — potentially a buying opportunity.

Quick quiz and answers

An RSI reading of 75 suggests the stock is:

Answer: Overbought and may pull back. RSI above 70 signals overbought conditions — the stock may have risen too far too fast.

RSI below 30 is generally considered:

Answer: Oversold — a potential buy opportunity. RSI below 30 suggests oversold conditions — excessive selling may have pushed the price too low.

RSI divergence occurs when:

Answer: Price makes new highs but RSI makes lower highs. Bearish divergence: price rises to new highs but RSI doesn't — suggesting weakening momentum.

What period is RSI most commonly calculated over?

Answer: 14 days. The default RSI period is 14 days, as proposed by Welles Wilder when he developed the indicator.

Practice this with $10,000 in virtual cash in Tradecraft, free paper trading with real market data.

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