Symmetrical triangle: define both boundaries and wait for direction
A symmetrical triangle has declining reaction highs and rising reaction lows, forming two converging boundaries. It can precede continuation or reversal. The geometry alone does not establish which direction will break or how far price will travel.
No reproducible labeled dataset supports a triangle recognition rate, breakout-direction success rate, target-accuracy percentage or phone-photo comparison on this page.
AI Detection
Use AI Chart Analysis as a second review
Pineify can help interpret a chart screenshot. Its response may miss context or misread a level, so compare it with your own chart annotations.
Prepare a readable chart
Include the symbol, timeframe and relevant swings. A screenshot can omit price history needed to assess the setup.
Review the structure
Pineify reviews a chart screenshot with a general vision model. It does not implement a fixed 15–20-candle classifier, angle-compression test or guaranteed apex and measured-target calculation. Compare the proposed pattern with explicitly recorded swing anchors.
Check the interpretation
Compare the response with the chart. Verify each price level yourself and record confirmation and invalidation rules before considering a trade.
How to Detect It
Step-by-Step Detection Guide
Work through the chart in order. Treat each condition as a check, and record why a setup fails as well as why it qualifies.
Mark both sets of anchors
Record at least two declining highs and two rising lows with their bar positions and prices. Keep the prior trend, interval and axes visible.
State rules for both directions
Calculate the two boundaries on the test bar. Choose a completed-bar condition, buffer and expiry rule before viewing later prices.
Review the screenshot interpretation
Upload a supported image with an eligible signed-in account and remaining allowance. Check every returned level and retain unknown values when labels are unclear.
A hypothetical pair of converging boundaries
Let upper resistance U(b) = 120 − 0.5b and lower support L(b) = 100 + 0.5b on a linear-price chart. Assume the selected swing anchors follow those lines and satisfy the declared pivot confirmation rule. The gap is 20 − b; the lines meet at bar 20 at price 110.
At bar 12, U = 114 and L = 106. This is a geometric description, not a forecast for bar 20. An apex is the intersection of extended lines; it need not become a traded price. If an anchor needs bars on its right to confirm, the boundary cannot be treated as known before those bars complete.
Test the upward and downward cases separately
For an illustrative 0.50-unit buffer at bar 12, a completed close above 114.50 is an upward confirmation; a close below 105.50 is a downward confirmation. Thus alternative closes of 115 and 105 pass their respective rules. A high at 115 followed by a close at 113 does not confirm the upward case.
The initial boundary gap is 20. A boundary-anchored geometric projection would be 114 + 20 = 134 after an upward break or 106 − 20 = 86 after a downward break. Anchoring to the closing price would produce different numbers. No rule here says the market must travel at least that distance.
Keep failure and similar shapes distinct
A later close back inside the recorded boundaries can be defined as a failed hold, separately from a candidate that never breaks before an expiry. Freeze the rules; changing the anchors after a failed outcome creates hindsight bias.
A rising or falling wedge has both boundaries sloping in the same direction. A pennant describes a smaller consolidation following a sharp move, but a universal 5–10 versus 10–20-candle distinction is not established here. Neither a pattern label nor a prior trend proves the direction of the next move.
Review image evidence without an accuracy shortcut
The screenshot endpoint returns an interpretation of one supplied image, with possible levels, risks and 0–100 model-assessed confidence. It is not a free anonymous service or a continuous universe scanner. Account eligibility and usage allowance apply.
Keep relevant volume or indicator panels visible when they matter to the question. There is no benchmark here proving a fixed overlay limit, a required percentage of frame occupancy or a confidence cutoff that validates geometry. A high score can still accompany a wrong pattern or price.
Sources and related guides
- StockCharts: Symmetrical Triangle
Converging highs/lows, either breakout direction and geometric projections as rough guides.
FAQ
Frequently Asked Questions About Symmetrical Triangle: Two-Sided Breakout Rules and Review
Definitions, confirmation and limits of the pattern.
Review your chart annotations
Use a screenshot to ask Pineify about the structure, then check its interpretation against the original chart. The response does not establish a trading edge.
Open AI Chart AnalysisPast performance is not indicative of future results. AI-generated scores and stock picks are predictive in nature and are not guaranteed to produce any particular outcome or return. Nothing on this page constitutes financial advice, investment recommendation, or solicitation to buy or sell any security. All investment decisions involve risk, including the potential loss of principal. You should conduct your own independent research and consult with a qualified financial advisor before making any investment decisions. The AI model may miss or misinterpret market-moving events, and scores can change without notice.