Fibonacci retracement levels are horizontal lines drawn at key ratios between a significant swing high and swing low, used to identify likely areas where a pullback within a trend will stall and reverse. The most commonly used ratios are 23.6%, 38.2%, 50%, 61.8%, and 78.6%. They work not because of hidden market physics, but because enough traders watch and act on the same levels that they become self-fulfilling.
How to Draw a Retracement
For an uptrend, click the tool at the swing low and drag to the swing high — the retracement levels then appear below the high, showing where a pullback might find support. For a downtrend, click at the swing high and drag to the swing low, showing where a bounce might find resistance. Using the wrong swing points (e.g. a minor wiggle instead of the real leg) produces meaningless levels.
The Key Levels and Their Meaning
| Level | Interpretation |
|---|---|
| 23.6% | Shallow pullback; typical of very strong trends |
| 38.2% | Moderate pullback; common in healthy trending markets |
| 50% | Not a true Fibonacci ratio, but widely watched as the psychological midpoint |
| 61.8% | The 'golden ratio' — the deepest pullback still considered healthy for the trend |
| 78.6% | Deep pullback; a break beyond this often signals the trend has failed |
Fibonacci Extensions for Targets
Extensions project levels beyond 100% of the original move and are used to set profit targets, most commonly 127.2%, 161.8%, and 261.8%. A common three-point extension tool uses the initial swing (A to B), the retracement (B to C), and projects from C using the same ratios that applied to the retracement — this is the basis of the classic ABCD pattern and many harmonic patterns.
Worked Example
USD/CAD rallies from 1.3400 (A) to 1.3600 (B), a 200-pip move. Price then retraces to the 61.8% level: 1.3600 - (200 x 0.618) = 1.3476 (C). If price holds there and resumes the uptrend, a 127.2% extension of the A-B move from C gives a target of 1.3476 + (200 x 1.272) = 1.3730.
Confluence Makes Fibonacci Powerful
A Fibonacci level alone is a weak signal. It becomes tradeable when it aligns with other evidence: a prior support/resistance level, a round number, a moving average, or a candlestick reversal pattern. The more independent factors that converge at the same price, the higher the probability of a reaction.
Draw the Fibonacci tool from the exact swing low to swing high on your chosen timeframe, then check the resulting 61.8% level against CURIO's other indicators for confluence before treating it as a trade zone.
Redrawing the tool on every minor swing until a level lines up with where you already want to trade is confirmation bias, not analysis. Pick the dominant, obvious swing and stick with it.