CoinMarketCap's RSI guide, read on Oct. 14, 2026, says a Relative Strength Index (RSI) above 70 typically marks an asset as overbought. RSI is a momentum oscillator. It runs from 0 to 100 and helps flag overbought or oversold conditions. A crypto.news glossary puts the overbought line for the Stochastic indicator at a reading above 80. Neither number settles the question alone. The RSI guide and a Tangem glossary entry both advise checking other information before trusting one reading.
Key facts
- RSI levels: Scale of 0 to 100. Above 70 typically indicates overbought and below 30 oversold (CoinMarketCap).
- Stochastic level: Scale of 0 to 100. A reading above 80 shows the asset is overbought (crypto.news).
- Oversold by RSI: A value below 30 suggests an asset might be oversold (Tangem).
What an overbought reading measures
In the crypto.news glossary, overbought means a crypto asset rising in value on disproportionately higher purchase activity. Traders use both technical analysis and fundamental analysis to judge whether an asset has reached that state. How long an asset stays in overbought territory varies with multiple factors, it says.
It ranges from 0 to 100 and helps identify overbought or oversold conditions in a financial asset.
Chart timeframe changes what a reading means
CoinMarketCap says short crypto charts, such as 5-minute or 15-minute ones, often produce noisy RSI signals. Rapid market moves and frequent price spikes cause that noise. On higher timeframes, such as daily or weekly charts, RSI can give more reliable signals. Those longer charts filter out the short-term volatility common in crypto.
Sideways markets versus strong rallies
The CoinMarketCap guide says RSI can be quite effective in sideways or range-bound markets. When prices keep climbing, the indicator can hold above its overbought line for a long stretch. Check the timeframe, the market type and the reading itself before weighing an overbought reading.
How much weight does an overbought reading deserve?
Which conditions on your chart make an overbought reading more or less reliable?
What does the indicator on your chart read?
- RSI above 70 → next question
- Stochastic above 80 → Overbought on the Stochastic
- RSI 70 or lower, or Stochastic 80 or lower → Not overbought by these lines
Which chart timeframe are you reading?
- 5-minute or 15-minute chart → Short chart: often noisy
- Daily or weekly chart → next question
How is the market moving?
- Sideways or range-bound → Higher timeframe, sideways market
- Rising strongly → Strong rise: the reading can persist
CoinMarketCap puts the usual RSI overbought line above 70. crypto.news puts the Stochastic line above 80. A reading under those lines is not overbought by these conventions. No single reading settles the question, so combine it with other technical or fundamental information.
Source: Crypto Relative Strength Index (RSI) (coinmarketcap.com), accessed Oct 14, 2026 · What is Overbought in Trading? (crypto.news), accessed Oct 14, 2026 · Oversold Meaning in Crypto | Tangem (tangem.com), accessed Oct 14, 2026crypto.news says a Stochastic reading above 80 on its 0 to 100 scale shows an asset is overbought. The timeframe and market-type points from CoinMarketCap concern RSI. CoinMarketCap and Tangem advise combining any reading with other information rather than relying on one indicator.
Source: What is Overbought in Trading? (crypto.news), accessed Oct 14, 2026 · Crypto Relative Strength Index (RSI) (coinmarketcap.com), accessed Oct 14, 2026 · Oversold Meaning in Crypto | Tangem (tangem.com), accessed Oct 14, 2026CoinMarketCap says 5-minute or 15-minute crypto charts often give noisy RSI signals because of rapid moves and price spikes. It says RSI signals work best alongside other technical or fundamental information.
Source: Crypto Relative Strength Index (RSI) (coinmarketcap.com), accessed Oct 14, 2026CoinMarketCap says daily or weekly charts can give more reliable RSI signals. It says RSI can be quite effective in range-bound markets. It also advises combining the reading with other technical or fundamental information.
Source: Crypto Relative Strength Index (RSI) (coinmarketcap.com), accessed Oct 14, 2026CoinMarketCap says an overbought RSI can last a long time as prices go on rising. It says selling just because RSI hits 70 often results in missed gains. Tangem advises looking at other market factors and indicators, not RSI alone.
Source: Crypto Relative Strength Index (RSI) (coinmarketcap.com), accessed Oct 14, 2026 · Oversold Meaning in Crypto | Tangem (tangem.com), accessed Oct 14, 2026The tool sorts conditions the sources describe in general terms and gives no current reading for any coin and no buy or sell signal.
Why one reading is not a verdict
CoinMarketCap's guide warns: "Selling just because RSI hits 70 often results in missed gains." It says context matters, and RSI signals are most useful alongside other technical or fundamental information. Tangem's glossary makes the same case. It advises looking at other market factors and indicators to build a fuller view, instead of relying on RSI alone.
The oversold mirror case
Oversold is the mirror case. Tangem's glossary defines it as extensive selling that may leave an asset due for a price correction. It says an RSI value below 30 typically suggests an asset might be oversold. A correction does not always follow at once. Market news, economic shifts or regulatory changes can keep an asset oversold for longer.
What is confirmed and what is not
Two of the three pages agree on the oversold line: an RSI below 30. CoinMarketCap says RSI works best combined with other technical or fundamental information, and Tangem says not to rely solely on RSI or any single indicator. The RSI line at 70, the timeframe effects and the sideways-market point come from the RSI guide only. crypto.news is the only one of the three to give a Stochastic line, putting overbought above 80. None of the pages gives a current reading for any coin or a false-signal rate, so these lines are conventions rather than tested rules.
Analysis: where an overbought reading carries more weight
CoinMarketCap says RSI can be quite effective in sideways or range-bound markets. In a strong rally, RSI can remain overbought for long periods as prices keep rising. It also warns that selling only because RSI reaches 70 often leads to missed gains. A 70 reading on a daily chart in a range-bound market meets more of the conditions linked to reliable signals than a 70 reading on a 5-minute chart during a rally. Even then, Tangem advises against relying on RSI alone.
Read RSI on the right timeframe
CoinMarketCap's RSI page says daily or weekly charts can give more reliable RSI signals. It says 5-minute or 15-minute charts often give noisy readings in crypto. For other chart signals, see the bear flag chart pattern explainer.
Sources: Crypto Relative Strength Index (RSI) (coinmarketcap.com), accessed Oct 14, 2026 · What is Overbought in Trading? (crypto.news), accessed Oct 14, 2026 · Oversold Meaning in Crypto | Tangem (tangem.com), accessed Oct 14, 2026
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