Fibonacci retracement is a technical analysis tool that helps traders spot likely support and resistance levels during a pullback. Here’s how the levels are calculated, how to draw them on a chart and how traders use them to plan entries, stop-losses and profit targets.
What is Fibonacci retracement?
Fibonacci retracement is a charting tool that marks horizontal lines at key percentage levels between a significant high and low on a price chart. Traders use these lines to identify where a price might pause or reverse during a pullback before continuing in the direction of the original trend.
The tool takes its name from the Fibonacci sequence, the number series in which each number is the sum of the two before it (0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55…). Dividing numbers in that sequence produces a ratio of roughly 1.618, known as the golden ratio — the basis for the 61.8%, 38.2% and 23.6% levels traders plot on a chart.(1)
The Fibonacci retracement levels
Most charting platforms plot the same core set of retracement levels between the 0% and 100% points of a price move:
23.6% — a shallow retracement, often seen in strong trends
38.2% — derived from the golden ratio, a common pullback level
50% — not a true Fibonacci ratio, but widely watched since markets often retrace close to half of a move
61.8% — the golden ratio itself, generally treated as the key retracement level
78.6% — a less commonly used, deeper retracement level(2)
None of these levels guarantees a reaction — they’re simply the zones traders watch most closely for signs that a pullback is ending and the prior trend is resuming.(1)
How to draw Fibonacci retracement levels
To draw Fibonacci retracement, you need two reference points: a swing high and a swing low, the same kind of price landmarks you’d identify when reading a stock chart. Charting platforms plot the levels automatically once you connect these two points with the tool.(3)
In an uptrend
Click the swing low first, then drag to the swing high. The tool treats the swing low as the 0% level and the swing high as the 100% level, plotting the retracement lines in between. These lines mark potential support levels where the price may find buyers during a pullback before resuming its climb.
In a downtrend
Click the swing high first, then drag to the swing low. Here, the swing high is 0% and the swing low is 100%. The retracement lines mark potential resistance levels where the price may find sellers during a bounce before resuming its decline.
Choosing the right swing high and low is the trickiest part of the process — pick a different pair of points and the levels shift. Most traders use the most recent, clearly defined swing on the timeframe they’re trading.
How to use Fibonacci retracement in trading
Fibonacci retracement is typically used as part of a broader technical analysis approach rather than as a standalone signal.
Spotting entry points. Traders looking to join an existing trend often wait for the price to pull back to one of the key levels — commonly 38.2% or 61.8% — before entering, rather than chasing the price at a new high or low.
Setting stop-losses. A stop-loss placed just beyond the next Fibonacci level down (in an uptrend) gives the trade room to breathe while limiting losses if the level fails to hold.
Setting profit targets. Some traders use the levels in the other direction too, taking partial profits as the price approaches a retracement level on the way back toward the prior high or low.
Confirming with other indicators. Because Fibonacci levels are watched by so many traders, price often does react near them — but confirmation from candlestick patterns, moving averages or momentum indicators makes a bounce off a level a more reliable signal than the level alone.
Fibonacci retracement vs. Fibonacci extension
Fibonacci retracement and Fibonacci extension both use the same underlying ratios, but they answer different questions.
Fibonacci retracement measures how far the price might pull back within an existing move, using levels between 0% and 100%.
Fibonacci extension projects how far the price might travel beyond the original move once it breaks out, using levels above 100% such as 138.2% and 161.8%.(2)
Traders often use retracement levels to plan an entry, then switch to extension levels to set profit targets once the trend resumes.
Limitations of Fibonacci retracement
Fibonacci retracement is popular, but it isn’t a precise predictive tool.
It’s subjective. Two traders can pick different swing highs and lows on the same chart and end up with different retracement levels.
It works best in trending markets. In a sideways or choppy market, price can cross back and forth through the levels without any meaningful reaction.
It can become a self-fulfilling pattern. Because so many traders watch the same levels, price sometimes reacts near them simply because enough people are placing orders there — not because of any inherent property of the ratios themselves.
It doesn’t work in isolation. Most experienced traders treat a Fibonacci level as one input among several, rather than a signal to trade on its own.
Compare brokers with strong charting tools
See which platforms make it easy to draw Fibonacci retracement and other technical indicators on your charts.
Fibonacci retracement gives traders a consistent, repeatable way to identify potential support and resistance zones during a pullback. It won’t tell you exactly where a price will reverse, but combined with other tools from your technical analysis toolkit, it can help you plan entries, exits and risk management with more structure than guesswork alone.
Frequently asked questions
The golden ratio, roughly 1.618, is the mathematical relationship at the root of Fibonacci retracement. Dividing it gives the 61.8% level, and squaring its inverse gives the 38.2% and 23.6% levels that traders plot on a chart.
The 61.8% level is generally considered the most significant, since it's derived directly from the golden ratio. That said, many traders watch the 38.2% and 50% levels just as closely, depending on the strength of the trend.
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Matt Miczulski is an investments editor and market analyst at Finder. With over 450 bylines, Matt dissects and reviews brokers and investing platforms to expose perks and pain points, explores investment products and concepts and covers market news, making investing more accessible and helping readers to make informed financial decisions.
Before joining Finder in 2021, Matt covered everything from finance news and banking to debt and travel for FinanceBuzz. His expertise and analysis on investing and other financial topics has been featured on Yahoo Finance, CBS, MSN, Best Company and Consolidated Credit, among others. Matt holds a BA in history from William Paterson University.
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