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Guide to Technical Analysis
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• Key Technical Analysis Concepts
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# Overbought

## What is Overbought?

Overbought is a term used when a security is believed to be trading at a level above its intrinsic or fair value. Overbought generally describes recent or short-term movement in the price of the security, and reflects an expectation that the market will correct the price in the near future. This belief is often the result of technical analysis of the security’s price history, but fundamentals may also be employed. A stock that is overbought may be a good candidate for sale.

The opposite of overbought is oversold, where a security is thought to be trading below its intrinsic value.

### Key Takeaways

• Overbought refers to a security with a price that's higher than its intrinsic value.
• Many investors use price-earnings (P/E) ratios to determine if a stock is overbought, while traders use technical indicators, like the relative strength index (RSI).
• Fundamental analysis can also be used to compare an asset's market price to its predicted value based on financial statements or other underlying factors.
• Ultimately, overbought is a subjective term. Since traders and analysts all use different tools, some may see an overbought asset while others see an asset that has further to rise.

## Overbought Explained

Overbought refers to a security which has been subject to a persistent upward pressure and that technical analysis suggests is due for a correction. The bullish trend may be due to positive news regarding the underlying company, industry or market in general. Buying pressure can feed on itself and lead to continued bullishness beyond what many traders consider reasonable. When this is the case, traders refer to the asset as overbought and many will bet on a reversal in price.

### Fundamentally Overbought

Traditionally, the standard indicator of a stock’s value has been the price-earnings ratio (P/E). Analysts and companies have used either publicly reported results or earnings estimates to identify the appropriate price for a particular stock. If a stock’s P/E rises above that of its sector or a relevant index, investors may see it as overvalued and pass on buying for the time being. This is a form of fundamental analysis, which uses macroeconomic and industry factors to determine a reasonable price for a stock.

### Technically Overbought

The rise of technical analysis has allowed traders to focus on indicators of a stock to forecast price. These indicators measure the recent price, volume, and momentum. Traders use technical tools to identify stocks that have become overvalued in recent trading and refer to these equities as overbought.

Some traders use pricing channels like Bollinger Bands to spot overbought areas. On a chart, Bollinger Bands are positioned at a multiple of a stock's standard deviation above and below an exponential moving average. When the price reaches the upper band, it may be overbought.

## How to Identify Overbought Stocks with RSI

Technical analysis has provided traders with increasingly sophisticated calculations to identify overbought stocks. George Lane’s stochastic oscillator, which he developed in the 1950s, examines recent price movements to identify imminent changes in a stock’s momentum and pricing trend. This oscillator laid the foundation for the technical indicator which has become the primary indicator of an overbought stock, the relative strength index (RSI). The RSI measures the power behind price movements over a recent period, typically 14 days, using the following formula:

﻿ $\text{RSI}=100-100/\left(1+\text{RS}\right)$﻿

RS represents the ratio of average upward movement to downward movement over a specified period of time. A high RSI, generally above 70, signals traders that a stock may be overbought and that the market should correct with downward pressure in the near term. Many traders use pricing channels like Bollinger Bands to confirm the signal that the RSI generates. On a chart, Bollinger Bands lie one standard deviation above and below the exponential moving average of a stock’s recent price. Analysts that identify a stock with a high RSI and a price that is edging toward the high end of its upper Bollinger Band will likely consider it to be overbought.

## Example of Overbought Conditions Using RSI

Here's an example of a chart with a high RSI reading that suggests overbought conditions:

In the above chart, the oversold RSI conditions (below 30) predicted a rebound in the stock price in October. The overbought RSI conditions (above 70) in February could indicate that the stock will consolidate or move lower in the near-term.

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