Fib Retracement

What is a Fib Retracement?

A Fib retracement maps horizontal levels across a completed price leg at fixed fractions of its range, conventionally 23.6%, 38.2%, 50%, 61.8%, and 78.6%. Anchored from a swing low to a swing high, or high to low for down legs, each level marks how much of the move a pullback has given back: in an up leg, the 61.8% level sits at the high minus 0.618 times the leg's range.

The ratios derive from the Fibonacci sequence, where the ratio of each term to the one before it converges on the golden ratio of about 1.618: 0.618 is its reciprocal, 0.382 is 0.618 squared (also one minus 0.618), 0.236 is 0.618 cubed, and 0.786 is the square root of 0.618. The 50% level is not a Fibonacci ratio at all; it persists by convention from older halfway-back rules. Since the grid depends entirely on its anchors, anchor selection is the real skill: use the most recent completed impulse leg, keep one wick-or-body convention, and redraw once price sets a new extreme.

The tool matters because it is watched. Retracement depth is a common shorthand for pullback health: shallow holds near 23.6% to 38.2% read as trend strength, deep ones near 61.8% to 78.6% as fading momentum, and the golden pocket just past 61.8% is a favored entry window. None of this is mechanical. Price cuts through fib levels constantly, so they work best as attention areas that still require structure or confirmation, not as forces acting on price.

How to draw a Fib retracement

The grid is only as good as the leg it is anchored to, so most of the work is choosing anchors.

1. 1Choose the leg. Pick a clear, recently completed impulse from one swing extreme to another, not a meandering stretch of overlapping swings; if the leg is ambiguous, the grid will be too.
2. 2Anchor consistently. Wick-to-wick is the most common convention and body-to-body the main alternative; mixing them shifts every level. The standard reading places 0% at the leg's end and 100% at its origin, so percentages measure how far price has traveled back toward the start.
3. 3Read the levels. Each ratio marks the price where that fraction of the leg has been retraced: for an up leg, the level equals the high minus the ratio times the distance from low to high. A pullback holding 38.2% has surrendered just over a third of the advance.
4. 4Re-anchor as structure evolves. Once price breaks the anchored extreme, the old grid is stale; redraw from the new completed leg, and remember that other traders may hold slightly different grids from slightly different anchors.

How it's calculated

Horizontal levels placed at fixed ratios of a completed price leg, showing how much of the move has been retraced.

0.5 is not a Fibonacci ratio but ships in the default set on nearly every platform; the others derive from the golden ratio (0.382 = 1 - 0.618, 0.786 = sqrt(0.618)).

Anchor to confirmed swing points such as zigzag or fractal pivots; wick versus candle-body anchoring is a convention choice, so pick one and apply it consistently.

Ratios above 1 (1.272, 1.618) project beyond the leg and belong to the extension tool, not retracement.

How traders use it

• For pullback entries with the trend: let price retrace into a chosen band (38.2% to 61.8% is the common window, the golden pocket its refinement) and then demand a trigger, such as a reversal candle or a level that visibly holds, before entering.
• As a trend-health gauge: repeated shallow retracements suggest one-sided control, while a leg that gives back more than 61.8% to 78.6% has, in many playbooks, lost the presumption of continuation.
• For invalidation: a full retrace through the 100% anchor breaks the premise of the leg, so stops commonly sit behind the origin, or behind the next level of the grid when tighter risk is wanted.
• As a confluence input: a retracement that lands on prior structure, an anchored VWAP, or a level from another grid (fib clusters) carries more weight than a naked ratio, and entry models such as optimal trade entry are built directly on this tool.

Fib Retracement vs related concepts