Fibonacci Wedge

The Fibonacci wedge combines the concept of converging trendlines — as seen in classical rising and falling wedge patterns — with Fibonacci ratio levels. Two boundary lines define the wedge edges, and Fibonacci ratio levels (23.6%, 38.2%, 50%, 61.8%, 78.6%) are drawn between them, creating a conical projection zone. The wedge can be expanding (diverging boundaries) orcontracting (converging boundaries).

Classical wedge patterns were described by Richard Schabacker in the 1930s and later byJohn J. Murphy and Thomas Bulkowski. A contracting wedge (also called a "symmetrical triangle" variant) represents a period of decreasing volatility as the market consolidates before a breakout. An expanding wedge (also called a "megaphone" or "broadening" pattern) represents increasing volatility and uncertainty. The Fibonacci wedge adds internal structure to these patterns by drawing proportional levels between the boundaries.

The tool is inspired by Gann angles and Fibonacci channel theory. The wedge shape naturally suggests that resistance and support are narrowing (or expanding) over time, helping traders anticipate breakout points and internal support/resistance zones. Unlike a standard channel, the wedge's boundaries are not parallel — they converge or diverge, reflecting changing market conditions and volatility regimes.

The Fibonacci Wedge is a three-anchor drawing tool. The first two clicks define the two boundary lines at the start of the wedge: click 1 sets the upper boundary start, click 2 sets the lower boundary start (or vice versa). The third click defines the end of the wedge: it sets the endpoint for both boundaries simultaneously by specifying the wedge width at the end point.

After placement, the tool draws a polygon between the two boundary lines. Inside this polygon, it draws lines at Fibonacci ratios (23.6%, 38.2%, 50%, 61.8%, 78.6%, and optionally 100%) of the distance between the two boundaries. These internal lines converge or diverge proportionally, creating a Fibonacci-ratio grid within the wedge. The area between the boundaries can be filled with configurable colors and opacity to create visual bands.

1. 1
   Click the first boundary anchor

   Set the first point of one edge of the wedge (e.g., the upper boundary start). This marks the beginning of the pattern at a swing high or low.
2. 2
   Click the opposite boundary anchor

   Set the first point of the other edge (e.g., the lower boundary start). The distance between clicks 1 and 2 defines the initial wedge width.
3. 3
   Click the third point to set the end

   Position the end of the wedge. The distance from the wedge line at this point defines whether the wedge converges (narrower) or diverges (wider). The tool draws the boundaries through this point.

The wedge is defined by two boundaries: Upper(y) = U_start + slope_U × (x − x_start) andLower(y) = L_start + slope_L × (x − x_start). The internal Fibonacci level at ratior is drawn at:Level_r(y) = Lower(y) + r × (Upper(y) − Lower(y)). This ensures the internal levels remain proportional to the local wedge width at every point along the wedge.

• Price respects the wedge boundaries as support and resistance, bouncing between them during the pattern formation. Each touch of a boundary reinforces its validity.
• The internal Fib levels act as intermediate targets within the wedge. Price may reverse at the 38.2% or 61.8% level before reaching the opposite boundary. These internal levels provide early-entry opportunities.
• As the wedge converges, volatility compresses — the range between bounces narrows. A breakout typically follows this compression phase within a few bars of the apex.
• The breakout direction in a contracting wedge: a rising wedge (higher highs, higher lows converging) usually breaks downward; a falling wedge (lower highs, lower lows converging) usually breaks upward. This is the classical expectation.
• An expanding wedge (megaphone pattern) is a sign of increasing disagreement among market participants. Expect wide, volatile swings between boundaries. The expanding wedge is a reversal pattern, not a continuation pattern.

1. 1
   Draw the wedge on a clear pattern

   Identify converging or diverging boundaries on the chart. Ensure the pattern has at least two touches of each boundary to be valid and reliable.
2. 2
   Trade swings between internal levels

   Buy at the 61.8% level (from lower boundary) within the wedge, sell at the 38.2% level (from upper boundary). These internal bounces provide low-risk intra-wedge trades with tight stops.
3. 3
   Prepare for the breakout

   As price approaches the wedge apex in a contracting wedge, reduce position size — the breakout direction is inherently uncertain. Prepare orders for both breakout directions.
4. 4
   Enter on the confirmed breakout

   Wait for a decisive close beyond one boundary with above-average volume. Enter in the breakout direction with a stop just inside the boundary. The apex is the invalidation point.
5. 5
   Project the post-breakout target

   For a contracting wedge, the minimum projected move equals the height of the wedge at its widest point (measured vertically). Add this height to the breakout point for the target.

A cryptocurrency forms a falling contracting wedge over 40 days. The upper boundary starts at $60,000 and slopes down to $40,000. The lower boundary starts at $50,000 and slopes down to $38,000. The wedge has two touches of each boundary. Internal Fib levels: 38.2% at $45,000, 50% at $44,000, 61.8% at $43,000 (from lower boundary).

Price reaches the 61.8% level at $43,000 on day 35. RSI shows bullish divergence (lower low in price, higher low in RSI). A bullish engulfing candle forms. Enter long at $43,500 with a stop at $38,000 (below the lower boundary). The height of the wedge at its widest is $10,000 ($60,000 − $50,000). The projected target is $43,000 + $10,000 = $53,000. Price reaches $55,000 within 15 days of the breakout — exceeding the minimum target.

The internal 61.8% level provided the exact entry point. Without the Fib levels, you would have had to choose an arbitrary entry within the wedge. The 61.8% level combined with RSI divergence created a precise, high-probability entry at the optimal point within the wedge.

• Volume: Contracting wedges should have declining volume during formation and expanding volume on the breakout. Low-volume breakouts are often false. Volume is the single most important confirming factor for wedge breakouts.
• Bollinger Bands: When the Bollinger Bands contract inside the contracting wedge, the compression is validated from a volatility perspective. The breakout is imminent when Bandwidth reaches an extreme low.
• RSI: In a falling wedge (bullish), RSI often makes higher lows while price makes lower lows — a bullish divergence that confirms the impending upside breakout. This is a reliable early signal.
• Elliott Wave: Contracting wedges often form as diagonal patterns in wave 1 or wave 5 of an Elliott Wave impulse. The internal Fib levels help track sub-wave retracements within the diagonal.
• Horizontal S/R: A breakout beyond the wedge that also breaks a horizontal support/resistance level is doubly significant. The wedge provides the "shape" context, the horizontal level provides the "price memory" context.

The Fibonacci wedge combines geometric boundary computation with proportional internal level interpolation. Its implementation requires tracking both boundary slopes and computing internal ratios at each bar.

Wedge boundary computation: Given upper start U_start(xᵤ, yᵤ), lower start L_start(xₗ, yₗ), and end point E(xₑ, yₑ), compute the boundary slopes: slope_U = (yₑ − yᵤ) / (xₑ − xᵤ) for the upper boundary and slope_L = (yₑ − yₗ) / (xₑ − xₗ) for the lower boundary. At any bar x between the start and end, the upper boundary is at U(x) = yᵤ + slope_U × (x − xᵤ) and the lower boundary at L(x) = yₗ + slope_L × (x − xₗ). A wedge is contracting when |slope_U| < |slope_L| (converging) and expanding when the opposite.

Internal level computation: For each Fibonacci ratio r in the set {0.236, 0.382, 0.500, 0.618, 0.786}, the internal level at bar x is: Fib_r(x) = L(x) + r × (U(x) − L(x)). These levels maintain their proportional distance between the boundaries, converging or diverging as the wedge boundaries do. The levels are computed at every bar the wedge spans, creating a dynamic grid that adapts to the wedge geometry.

Breakout detection: Monitor price relative to the boundaries on each bar. A breakout occurs when price closes beyond either boundary by more than 0.3× ATR and the volume is above the 20-bar average volume. The breakout direction determines the entry. After breakout, the projected target is computed as: target = breakout_price + height × direction, where height is the maximum vertical distance between the boundaries (at the wedge's widest point). Generate a "return move" signal if price retests the 50% or 61.8% internal level within 10 bars after the breakout.

Wedge trading involves two distinct risk phases: intra-wedge swing trading (before breakout) and post-breakout trend trading. Each phase requires its own risk management approach.

Intra-wedge position sizing: For trades within the wedge (buying at lower internal levels, selling at upper internal levels), use 0.75× standard position size. The wedge is a consolidation pattern, and internal bounces are lower probability than full breakout trades. The stop is placed just inside the nearest boundary (1× ATR beyond the boundary for protection against boundary wicks). The target is the opposite internal level — e.g., buy at the 61.8% level, target the 38.2% or 23.6% level.

Post-breakout position sizing: On a confirmed breakout (volume-confirmed close beyond the boundary), use full position size (1.0× base). The breakout has a higher probability than intra-wedge reversals. Place the stop just inside the broken boundary — the boundary now acts as support (for upside breakouts) or resistance (for downside breakouts). The initial target is the wedge height projected from the breakout point. Trail the stop at the 50% retracement level of the post-breakout move.

False breakout management: A false breakout occurs when price breaks the boundary but closes back inside within 2–3 bars. If a false breakout is detected, exit immediately and reverse the position: a false upside breakout is often followed by a strong downside move, and vice versa. The false breakout reversal is a high-probability setup with a tight stop just beyond the false breakout extreme. False breakouts occur in approximately 25–30% of wedge patterns.

Wedge trading requires patience to wait for the pattern to mature and discipline to enter precisely at the breakout or internal level. The temptation to enter too early is the most common psychological error.

The "I called the breakout" trap: Traders who correctly identify a wedge often enter before the breakout, projecting where price "should" go rather than waiting for actual confirmation. This premature entry gets stopped out repeatedly as price oscillates within the wedge. The rule: do not enter a wedge trade until either (a) price reaches an internal Fib level with a reversal candle, or (b) a volume-confirmed breakout occurs. Guessing the breakout direction before it happens is the fastest way to lose money on wedges.

The "apex anxiety" trap: As the wedge approaches its apex (for contracting wedges), the narrowing range creates a sense of urgency — "the breakout must happen soon!" This anxiety causes traders to enter with reduced conviction, small targets, and tight stops just before a major move. The solution: as the wedge apex approaches, widen your mental time horizon. The breakout will happen when it happens, and it is better to miss the first 2% of the breakout and catch the remaining 10% than to enter early and get stopped out. Patience at the apex is rewarded.

The Fibonacci wedge can be adapted for specialized pattern recognition and trading approaches. Several advanced variations build on the core wedge geometry.

Wedge angle symmetry analysis: The ratio of the upper boundary slope to the lower boundary slope indicates the wedge's symmetry. A perfectly symmetric wedge has |slope_U| / |slope_L| = 1. Asymmetric wedges (ratio ≠ 1) have a stronger directional bias: if the upper boundary is steeper than the lower (ratio > 1 in a contracting wedge), the downward breakout is more likely. If the lower boundary is steeper (ratio < 1), the upward breakout is more likely. Use this slope ratio as an additional input to determine the expected breakout direction beyond the classical wedge expectation.

Volume-weighted internal levels: Instead of equal-spaced internal Fib levels, weight the levels by volume. High-volume areas within the wedge attract more internal level lines, creating a "volume-density wedge" where the internal levels cluster near high-activity price zones. This customization highlights the prices within the wedge where most trading activity occurred, which often act as stronger support/resistance than the standard proportional levels. High-volume internal levels should be given priority for entry and exit decisions.

A wedge on a higher timeframe defines the major consolidation or reversal pattern. Lower timeframe wedges may form within the larger wedge. A breakout from a daily wedge that is inside a weekly wedge should be evaluated in the context of the weekly wedge's expected breakout direction.

Nested wedges: A 4-hour wedge forming inside a daily wedge creates a "nested pattern." The breakout of the 4-hour wedge often triggers the eventual breakout of the daily wedge. Trade the 4-hour breakout in the direction of the daily wedge's expected breakout (based on the daily wedge's slope: falling wedge → bullish, rising wedge → bearish).

Wedge-within-wedge: When a smaller wedge (4-hour) forms at the apex of a larger wedge (daily), the setup is called a "wedge-within-wedge" and is considered a high-reliability pattern. The smaller wedge's breakout has a higher probability of being genuine because it occurs at the larger wedge's natural breakout point. These nested structures offer the most reliable wedge trading opportunities.

Wedges are volatility patterns. Their behavior and reliability are directly tied to the market's volatility regime. Understanding volatility is essential for wedge trading.

Contracting volatility (declining ATR): This is the classic wedge environment. As price compresses, the wedge boundaries converge. The breakout is imminent when ATR reaches a multi-week low. The wedge's internal Fib levels provide precise entry and exit points within the compression. This is the ideal regime for contracting wedge trades.

Expanding volatility (rising ATR): Expanding wedges (megaphones) form in rising volatility environments. Price swings between widening boundaries. The internal Fib levels are useful for trading the swings within the megaphone: buy at the 61.8% level from the lower boundary, sell at the 38.2% level from the upper boundary. Do not trade breakouts from an expanding wedge — they often reverse immediately.

Abrupt volatility spike: A sudden news-driven volatility spike invalidates an existing wedge pattern instantly. The boundaries are meaningless after a shock event. Wait for a new pattern to form after the volatility spike subsides. A wedge that contained 10 days of quiet price action is destroyed by a single earnings gap that exceeds the wedge width.

• 1.Wedge Patterns — classical TA — Investopedia
• 2.Fibonacci drawing tools guide — TradingView Help
• 3.Technical Analysis of Financial Markets — John J. Murphy (1999)
• 4.Fibonacci Analysis — Constance Brown (2008)
• 5.Encyclopedia of Chart Patterns — Thomas N. Bulkowski (2005)
• 6.Technical Analysis Explained — Martin J. Pring (2014)