Double bottom: separate two lows from a confirmed W pattern
On a candlestick chart, a double bottom is a bullish reversal candidate after a decline: two comparable lows with a reaction high between them. The W shape remains a candidate until its stated neckline-break condition is met.
No reproducible labeled dataset or scoring method supports a double-bottom detection accuracy on this page. Model-assessed confidence is not a measured win rate.
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 interprets a screenshot with a general vision model. It does not implement a dedicated 3–5% trough-symmetry test or a minimum-30-candle W classifier. Check any reported neckline, pattern label and levels against the visible chart.
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.
Keep the decline and both lows visible
Record the interval, price axes, two low prices and intervening reaction high. State how a swing low becomes confirmed, including any right-side bars.
Define the neckline test
Write the tolerance and completed-bar condition before reviewing later prices. A second low alone does not confirm an upward break.
Check the image response
Use a supported image and an eligible signed-in account with remaining allowance. Compare the interpretation with the source chart and preserve unknown prices.
A W candidate is not evidence of exhausted sellers
Two similar troughs describe chart geometry. They do not identify who traded or establish that selling has ended. The reaction high between the troughs provides a resistance reference; a later break is a separate observation. StockCharts distinguishes this candlestick reversal from the differently defined bearish double-bottom breakdown in point-and-figure charts.
Choose your own explicit tolerance and pivot confirmation. A published convention is not a Pineify implementation or a universally profitable threshold.
A hypothetical neckline and projection
Suppose the first low is 100, the second is 101 and the intervening high is 115. In this exercise the allowed difference between lows is 2 price units, so the two lows qualify. This threshold is illustrative, not optimized. Assume the surrounding bars satisfy the chosen swing rule and both lows are known before confirmation.
A completed close strictly above 115 confirms this example: 116 passes; an intrabar high of 116 with a close of 114 does not. Using the lower trough, height = 115 − 100 = 15. Adding that height to the 115 neckline gives a geometric reference of 130. It is not a forecast or a verified Pineify-generated target.
Write failure and execution rules separately
For this example, a close below 100 before confirmation rejects the candidate. After an upward break, a close back below 115 records a failed hold. A retest may occur or may never occur; requiring one changes which observations are included, without proving a higher success rate.
A strategy also needs entry timing, exit conditions, position sizing, fees and slippage. A structural invalidation line and a stop-order fill are different: gaps and execution conditions can produce a worse fill. Keep recognition accuracy separate from strategy returns.
Review market data and automation limits
Volume refers to the displayed venue and feed; it cannot identify institutional accumulation by itself. Forex tick volume and exchange-reported trade volume are not interchangeable. No dataset here establishes a best daily or four-hour setting across stocks, forex and crypto.
Pineify reviews one uploaded image and can return pattern text, support/resistance and entry/stop/two target fields. Prices can be unknown. It does not continuously watch subsequent bars or execute trades through this page. A separately generated Pine indicator needs explicit pivot/tolerance rules and testing; generated code is not guaranteed error-free.
Sources and related guides
- StockCharts: Double Bottom Reversal
Conventional candlestick structure and neckline-based geometric projection; not a Pineify benchmark.
FAQ
Frequently Asked Questions About Double Bottom (W Pattern): Neckline and Confirmation Rules
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.