2002issue C111
Constructing Eve-and-Eve and classic double bottoms
A double-bottom is a two-trough base after a decline, and the archive treats that skeleton as unchanged across variants. Construction still needs a quieter retest, an intervening-high, and later confirmation-clearance. The eve-and-eve-double-bottom adds a spacing rule of at least three weeks between the lows.
- A double-bottom keeps the same two-trough structure across variants: a first-trough, an intervening-high, a retest, and later confirmation-clearance.
- The first-trough is described as forming after a decline in which volume expands on steep drops and then reaches a climactic selling peak.
- The retest is described as a quieter second approach, with noticeably lighter volume and narrower ranges than the first trough.
- An eve-and-eve-double-bottom spaces the two lows at least three weeks apart, typically with heavier volume on the left low, and the pattern is complete only when a later advance clears the intervening-high on increasing volume.
Keep the two-trough structure
The archive describes more than one double-bottom construction, yet it treats the basic two-trough structure as unchanged across those variants.
A double-bottom is a two-trough base after a decline. It is completed only when later price clears the high between the troughs. That high is the intervening-high. Until confirmation-clearance occurs, the chart still shows two lows and a bounce, not a finished pattern.
Build the first-trough
The first-trough is the initial selling extreme in the base. The archive describes that low as forming after a decline in which volume expands on steep drops and then reaches a climactic selling peak.
The bounce from that first low is described as typically light-volume, with narrower trading ranges, before stalling at an intervening-high. That peak is the resistance that later has to be cleared.
Require a quieter retest
The retest is the second approach toward the first low. The archive describes that second approach as occurring on noticeably lighter volume and narrower ranges than the first trough.
Editorial reading: the quieter retest is a construction checkpoint, not decoration. If the second approach is as heavy and as wide as the first-trough, the chart has not met the condition that distinguishes a constructed double-bottom from a generic pair of lows.
Separate Eve-and-Eve with a spacing rule
The eve-and-eve-double-bottom is a double-bottom variant whose two lows are at least three weeks apart and whose left low typically prints the heavier volume.
Editorial reading: the spacing rule is what separates that case from any two nearby lows that happen to print near the same price. The heavier left-low volume is part of the same construction, not a later comment on the pattern.
Finish only on confirmation-clearance
The pattern is described as complete when a later advance clears the intervening-high on increasing volume. That later advance is the confirmation-clearance.
Editorial reading: two comparable lows, a quieter retest, and, for the eve-and-eve-double-bottom, the three-week spacing still leave the hypothesis open. Confirmation-clearance is the last checkpoint. If the intervening-high is not taken out on increasing volume, the construction remains unfinished.
Turn the construction into a hypothesis
Editorial reading: the point of these checkpoints is not to name two matching prices. It is to state a repeatable chart condition that can fail. The hypothesis is that a first-trough, a quieter retest, the relevant spacing, and later confirmation-clearance together define the pattern. Any missing checkpoint falsifies that reading.
All readings on this track · 32 readings
- 1988Reaction length as a trend integrity test
- 1991Sold-out double bottoms as a three-gate inventory test
- 1991A breadth classifier for V-bottoms and W-bottoms
- 1991Precomputed price-ratio clusters and double-top tests
- 1992Bond turning points as a regime check on equity double tops and breakouts
- 1992Commodity-bond ratio as an equity regime overlay
- 1992Gold lead confirmation for commodity-index turns
- 1994Constructing the thousand-line advance-decline indicator
- 1995Evaluating zero-line patterns on a breadth-price oscillator
- 1996Constructing double tops from a resistance retest to a trough break
- 1996Four-stage double-bottom construction
- 1998Double-bottom confirmation and stop placement
- 2000Two-bar reversal construction
- 2001Constructing double tops from failed resistance retests
- 2002Eve-Eve double bottoms: width, confirmation, and overhead resistance
- 2002Constructing Eve-and-Eve and classic double bottoms
- 2003Eve-Adam double bottoms as a two-step classroom test
- 2003Shape contrast then breakout confirmation in Adam and Eve double bottoms
- 2003Reading cyclical bottoms inside secular bear regimes
- 2004A case study of the shark-attack Fibonacci retracement
- 2004Confirming index turns with envelopes, divergence, and breadth
- 2005A five-wave euro/dollar case and the support that still had to fail
- 2007Constructing commodity seasonal indexes for regime context
- 2009Constructing rounded and double-top short setups
- 2010Hourly pattern entries, exits, and abstention as one playbook
- 2016Ugly double bottom after a yearly low
- 2016An unconfirmed stock double bottom next to a confirmed index
- 2016Constructing a range-midpoint moving average
- 2017Evaluating whole-dollar delays on pattern breakouts
- 2018Volume-confirmed bottoms and breakouts with moving averages
- 2018Evaluating double bottoms with a locked stochastic confirmation
- 2019Forex pairs as relative value: yield spreads, support, and a double bottom