Short answer
A rising wedge is a chart pattern bounded by two up-sloping, converging trendlines, with the lower line rising faster than the upper. In Thomas Bulkowski's bull-market sample of over 1,400 wedges, price broke downward 60% of the time, yet those breakdowns ranked 36th of 36 bearish patterns, with a 51% break-even failure rate and a 9% average decline.
This article explains the rising wedge chart pattern and the evidence on how it behaves. It is educational and general, not personalised investment advice. The confirmation and target methods described are conventions found in the technical-analysis literature, shown so readers understand them, not instructions to act on, and nothing here is a recommendation to buy, sell, sell short, or hold any security.
The rising wedge is taught as a bearish pattern, and on paper it usually is: it breaks down more often than up. Yet in the largest public catalogue of chart patterns, its downward breakouts rank dead last for performance. Here is how to read the shape, what the data says about it, why it matters more as a warning than as a trade, and why we measure fading momentum with rules rather than drawing it.
The short version. A rising wedge is a price pattern bounded by two up-sloping trendlines that converge, with the lower line (the higher lows) rising faster than the upper line (the higher highs). It is usually read as bearish: in Thomas Bulkowski’s bull-market sample of over 1,400 wedges, price broke downward 60% of the time. But those downward breakouts ranked 36th of 36 bearish patterns, with a 51% break-even failure rate and an average decline of only 9%.
What is a rising wedge pattern?
A rising wedge is a narrowing, upward-sloping range: price makes higher highs and higher lows, but each new high adds less than the rise in the lows, so the two trendlines converge. The shape describes buying pressure that is still lifting price but buying less progress each time, which is why it is read as a loss of upside momentum.
It is the mirror image of the falling wedge, and the geometry rules carry over with the slopes flipped:
- Both lines slope up. The upper (resistance) line joins the reaction highs; the lower (support) line joins the reaction lows. StockCharts’ ChartSchool specifies that the lower line is the steeper of the two, so the highs become comparatively shallower as the pattern matures.
- The lines converge. Two parallel rising lines make an ascending channel (or, if short and after a sharp drop, a bear flag). A flat upper line with rising lows is an ascending triangle. Only converging, rising lines make a wedge.
- Enough touches. Bulkowski asks for at least five trendline touches in total, three on one line and two on the other. ChartSchool asks for at least two, ideally three, higher peaks and at least two higher lows.
- Enough time. Bulkowski sets three weeks as the minimum; shorter shapes he classes as pennants. ChartSchool’s reversal wedges typically take three to six months to form.
Is a rising wedge bearish?
It leans bearish on direction and is weak on payoff. Bulkowski’s statistics (bull market, updated August 2020 and still the figures on his site as of October 2026) show downward breakouts 60% of the time. That leaves four wedges in ten breaking upward, a much less lopsided split than the pattern’s reputation suggests.
The bigger surprise is what happens after a breakdown. Bulkowski calls rising wedges some of the worst-performing chart patterns he tracks, and singles out downward breakouts for unacceptably high failure rates and small post-breakout declines. In his data, about half of all downward breakouts failed to fall even 5% before turning back up. So the honest answer to “is a rising wedge bearish” is: it tilts that way, but as a shorting signal it is one of the least reliable shapes on record.
Reversal or continuation: where the wedge appears
A rising wedge can be either, and the trend before it decides which. Bulkowski’s guideline for the prior trend is “any direction”, and ChartSchool treats both versions as bearish.
- As a reversal, the wedge forms at the end of an uptrend and slopes with it. The advance continues, but each leg is shorter and more grinding. This is the version that matters most to anyone holding a strong stock, because it describes a trend that is still rising on the chart while losing force underneath.
- As a continuation, the wedge forms as a rebound inside a downtrend, sloping up against the trend before the decline resumes. This is the shape often called a “bearish wedge”, a larger, looser cousin of the bear flag.
Volume: quiet on the way up
Volume usually falls as a rising wedge forms. Bulkowski reports a downward volume trend in 79% of his samples until the breakout. In a rising wedge, that matters: price is climbing while participation thins, which is the opposite of the expanding-volume advance that momentum traders look for.
ChartSchool adds that an expansion of volume on the support break strengthens the bearish confirmation. A break of the lower line on light volume is weaker evidence, and given how often rising-wedge breakdowns fail, weak evidence deserves extra scepticism.
What counts as a rising wedge breakdown?
A breakdown is a close below the lower trendline. ChartSchool says bearish confirmation does not come until support is broken “in a convincing fashion”, and notes that some traders also wait for a break below the most recent reaction low inside the wedge.
The asymmetry with the falling wedge is worth seeing. There, a falling upper line is easy to cross by drifting sideways. Here, the steep rising lower line is the one that is easy to cross: if price simply stalls, the support line climbs into it and a “breakdown” appears without much selling. That is one reason so many rising-wedge breakdowns go nowhere. The trade-off between acting early and waiting for proof is the same one covered in anticipation versus confirmation.
Retests are the norm. Bulkowski records a pullback (price returning to the breakout area after a downward breakout) in 72% of cases, and a throwback after upward breakouts at the same 72%. He also notes that upward breakouts may show weakness about two weeks after the breakout.
How do you calculate a rising wedge price target?
The conventions disagree, and one source declines to give one. ChartSchool states there are no measuring techniques to estimate the decline. Bulkowski’s measure rule offers two: the lowest valley in the wedge (where the pattern started), or the wedge height multiplied by the share of patterns that historically met their target, subtracted from the breakout price. Many trading guides subtract the full height.
A worked example with round, illustrative numbers. The wedge’s highest peak is $60, its lowest valley is $50, so the height is $10. Price closes below the lower trendline at $56.
| Convention | Calculation | Target |
|---|---|---|
| Lowest valley (Bulkowski) | Bottom of the wedge | $50.00 |
| Scaled height (Bulkowski) | $56 − ($10 × 0.32) | $52.80 |
| Full height (common convention) | $56 − $10 | $46.00 |
The 0.32 is Bulkowski’s measured rate of downward-breakout rising wedges reaching the lowest-valley target. In other words, about two breakdowns in three never returned to where the wedge began. For the falling wedge, the equivalent figure was 62%. The mirror image is not a mirror in performance.
What the evidence says
Bulkowski’s bull-market figures, from more than 1,400 rising wedges, put numbers on the weakness:
| Measure | Upward breakout | Downward breakout |
|---|---|---|
| Share of breakouts | 40% | 60% |
| Overall performance rank (1 is best) | 32 of 39 | 36 of 36 (last) |
| Break-even failure rate | 19% | 51% |
| Average rise / decline | 38% | 9% |
| Throwback / pullback rate | 72% | 72% |
| Met price target | 63% | 32% |
Read it carefully. The upward breakouts, the ones the pattern is not supposed to produce, have the lower failure rate and the larger average move. Two cautions apply. First, these are “perfect trades”, measured from breakout to the ultimate high or low with no costs, so they are a ceiling, not what a trader captured. Second, bull-market samples flatter upside breaks and penalise downside ones: a rising wedge that breaks down in a rising market is fighting the tide.
The academic evidence does not cover wedges at all. Andrew Lo, Harry Mamaysky and Jiang Wang (“Foundations of Technical Analysis”, Journal of Finance, 2000) detected patterns with an automatic kernel-regression method on US stocks from 1962 to 1996 and tested ten classic shapes: head-and-shoulders and its inverse, broadening, triangle and rectangle tops and bottoms, and double tops and bottoms. Several carried some incremental information about subsequent returns. Wedges were not among them, so the paper offers no verdict on this one. Its contribution is methodological: patterns can only be tested honestly once a rule, not an eye, decides where they are.
Why it matters to a long-only momentum trader
For someone who only buys strength, a rising wedge is less a short setup than a description of a tiring trend. A stock can still be making higher highs, still sit above its moving averages, and still rank well on trailing returns while each push higher gains less and volume thins. That combination, price up and thrust down, is what the wedge draws.
- It is a warning, not a verdict. Four wedges in ten broke upward in Bulkowski’s sample, with a 38% average rise. Treating every rising wedge as the top would mean leaving many working trends early.
- It is not a fresh entry signal either. Buying a grinding, narrowing advance after a long run is buying late in a move. A healthy continuation base looks different: a pause that tightens sideways or slightly down, as in a bull flag, not a climb on fading volume.
- Stops do the real work. If the wedge does resolve down, an exit rule already in place handles it without needing to name the pattern. A volatility-aware stop scales to the stock’s own range (see volatility-aware stops).
Rising wedge vs ascending triangle vs bear flag vs falling wedge
These shapes are easy to confuse. The quickest test is the slope of each boundary and what came before the pattern.
| Pattern | Upper line | Lower line | Typical read | Bulkowski breakout direction (bull market) |
|---|---|---|---|---|
| Rising wedge | Slopes up, shallower | Slopes up, steeper; lines converge | Bearish, reversal or continuation | Downward 60% of the time |
| Ascending triangle | Horizontal (flat resistance) | Slopes up | Bullish, buyers pressing a fixed ceiling | Upward 63% of the time |
| Bear flag | Slopes slightly up | Parallel to upper line | Bearish continuation after a sharp drop | Short pause inside a downtrend; usually resolves with the pole |
| Falling wedge | Slopes down, steeper | Slopes down, shallower; lines converge | Bullish, the mirror image | Upward 68% of the time |
The rising wedge versus ascending triangle question comes down to the upper line. In an ascending triangle, sellers defend a flat price while buyers lift the lows into it; the pressure is building against a fixed level, which is why it is read as bullish. In a rising wedge the highs keep rising too, just more slowly than the lows, so each advance is shrinking. The data backs the distinction: Bulkowski’s ascending triangles (updated July 2025) break upward 63% of the time and rank 16th of 39 on upward breakouts, against the rising wedge’s 32nd. Getting the upper line wrong turns one of the better bullish shapes into one of the weaker ones.
Why rising wedges fail
The failures overlap with breakout failures in general (see why breakouts fail), with a few specific to this shape.
- The trendlines are subjective. Shift one anchor and the support line, and with it the breakdown, moves. Patterns fitted after the fact always look cleaner than they did in real time.
- A steep support line is easy to break. Sideways drift is enough to cross it. That is the line catching up, not supply arriving.
- The market is rising. In a bull market, a breakdown has to overcome the broad tide. Many simply become a pause before the uptrend resumes, the pattern behind the shakeout.
- Small declines. With a 9% average decline from best-case measurement, there is little room for costs, slippage or a late exit.
- Hindsight in the examples. Guides show wedges that collapsed. The four in ten that broke up, and the half of breakdowns that failed, rarely make the illustration.
How Shishin approaches wedges
Shishin is long-only and rules-based. It does not short rising wedges, does not detect wedges, and does not draw trendlines. The useful idea inside the shape, a trend whose advances are shrinking while volume thins, is measurable directly, so we measure that instead of the drawing.
Each day the board ranks roughly 1,000 US stocks on eight scoring components built from price, volume and trend, using point-in-time, split- and dividend-adjusted data. Those components capture, among other things, whether the trend is intact, whether range and average true range are contracting, and how volume is behaving. The setup-state classifier then labels where a name sits in its cycle, from a basing, tightening state through a breakout to an extended one. An extended, tiring advance and a quiet, tightening base can both look “narrow” on a chart; scored objectively they land in different states. The constructive version of contraction is described in the volatility contraction pattern.
The same arithmetic runs on every stock every session, so two readers get the same answer, and the rules can be tested on data they were not tuned on. Entries fill at the market close, and stops are volatility-aware (ATR-based) rather than tied to a line someone chose, which is how a held position that rolls over gets handled without anyone needing to call it a wedge. Rules do not guarantee an edge; they make one testable. Our paper-traded record, with the misses shown, is on the track record, and every signal is committed to the tamper-evident log on the verification page.
Honest limits and common mistakes
- Calling every grinding rally a wedge. Without converging lines, enough touches and enough time, it is just an advance.
- Confusing it with an ascending triangle. If the highs are flat, it is a triangle, and the historical read flips toward bullish.
- Assuming it must break down. Four in ten broke up in Bulkowski’s bull-market sample.
- Treating the target as a promise. Only about a third of downward breakouts reached even the lowest-valley target.
- Trusting old statistics blindly. The figures are dated 2020, come from one researcher’s identification of patterns, use best-case exits and describe a bull market. They are the best public reference, not a law.
Our own approach has limits too. Scoring momentum and contraction objectively removes the drawing bias, but it cannot tell a pause from a top in advance; some strong trends will still roll over before an exit triggers. A rules-based process makes those cases visible and countable. It does not make them disappear.
Sources & further reading
- Bulkowski, T. N. “Rising Wedges”, statistics, identification guidelines and measure rule. thepatternsite.com/risewedge (statistics updated 2020). Also Encyclopedia of Chart Patterns, Wiley.
- Bulkowski, T. N. “Ascending Triangles” and “Falling Wedges”, thepatternsite.com/at and thepatternsite.com/fallwedge.
- StockCharts ChartSchool, “Rising Wedge”, chartschool.stockcharts.com.
- Lo, A. W., Mamaysky, H. & Wang, J. (2000). “Foundations of Technical Analysis: Computational Algorithms, Statistical Inference, and Empirical Implementation.” Journal of Finance, 55(4), 1705 to 1765. NBER working paper 7613.
- The falling wedge pattern for the bullish mirror image and its statistics.
- False breakout vs shakeout and why breakouts fail for the failure modes in more depth.
- The setup-state classifier for how the system labels where a name sits in its cycle.