Bull Trap and Bear Trap: How to Spot a Failed Breakout, With Real Counts

A bull trap is a breakout that fails: price closes above a resistance level, buyers step in on the breakout, and within a few sessions price closes back below the level. Those buyers are "trapped" in a losing position. A bear trap is the mirror image: a close below support that draws in sellers, followed by a close back above it. Both are names for the same thing, a breakout that did not hold.

A rule that finds bull traps

To count traps rather than pick them after the fact, we used one rule, the same for every market:

• Resistance: the highest high of the previous 20 sessions. A breakout is the first close above it.
• Bull trap: a close back below that level within the next 5 sessions. Otherwise, the breakout held.
• Bear trap: the same on the way down, with the lowest low of the previous 20 sessions as support.

The full Bitcoin chart below the introduction applies the rule to daily Bitcoin from December 2025 to April 2026. Of the six upside breakouts in the window, five turned into bull traps, marked above the bars; only the breakout of April 13, 2026 held, marked below.

What followed bull traps: the counts

We ran the rule over the daily S&P 500 ETF from January 4, 2021 to October 28, 2026 (1,462 sessions, dividend-adjusted prices) and over daily Bitcoin from March 8, 2025 to October 28, 2026 (600 bars). For each breakout we checked whether the close 20 sessions later was above the breakout close; as a baseline, the same check over all sessions.

• Traps are common. By this rule, more than half of the upside breakouts on both markets failed within 5 sessions: 67 of 124 on the ETF, 14 of 22 on Bitcoin.
• On the ETF, a bull trap was not a sell signal. After a trap, the ETF was higher 20 sessions later in 44 of 66 cases, about the same as after any session (67.2%). Breakouts that held did a little better, 42 of 57, a gap of 7 points that is within the margin of samples this size. In a market that rose over the period, a failed breakout was mostly a pause.
• On Bitcoin, the sample is too small. Only 4 of 14 traps were followed by a higher close 20 sessions later, but 14 cases over 20 months do not support a conclusion.
• Volume did not separate them on the ETF. Low volume on the breakout is the warning most guides give. The median volume on the breakout day, divided by the average of the 20 sessions before it, was 0.92 for traps and 0.98 for breakouts that held.

Bear traps on the ETF: 29 of 42 downside breakouts closed back above the level within 5 sessions, and after 22 of those 29 the ETF was higher 20 sessions later. Failed breakdowns in a rising market were often followed by gains. The 13 breakdowns that held are too few to compare with.

How to avoid a bull trap

1. Wait for the close. A move above resistance during the session that does not hold to the close is not a breakout by this rule.
2. Plan the exit before the entry. The simplest rule: if price closes back below the broken level, the breakout failed and you are out. The stop is then close, and the loss small.
3. Give the level some room, or none. A stop exactly at the level is hit by every retest; a stop below the breakout bar's low gives room at a higher cost. The choice belongs in the plan, not in the moment.
4. Look at the level. Ask whether the breakout clears a level that matters, such as the top of a well-defined range or a support or resistance level seen on a higher timeframe, rather than any new 20-day high. We have not measured whether that filter helps. A breakout through a trendline has the same risk: see the trendline breakout strategy.
5. Do not assume a long rally makes a trap more likely, as many guides say. On the ETF, we split the 121 upside breakouts that had 60 sessions of history before them into three groups by the gain over those 60 sessions. Traps did not rise with the run-up: 23 of 40 after the smallest runs (a 7.1% loss to a 4.8% gain), 19 of 40 in the middle group (4.8% to 8.5%), 23 of 41 after the largest (8.6% to 23.2%).
6. Do not rely on volume alone. The Bitcoin trap of January 2026 came on almost twice the average volume. On Bitcoin, breakouts that held had the higher median volume, 1.74 against 1.14 times the average, on 8 and 14 cases: too few to build a filter on. Trading volume is one input, not a filter.

Bull traps in crypto

Crypto markets trade around the clock, so a breakout can be made and undone within hours, at any time of the day or week. On a daily chart, the rule above still works: it uses the daily close, which for Bitcoin is a fixed time of day rather than the end of a session. In our Bitcoin data, 14 of 22 upside breakouts and 10 of 18 downside breakouts from March 2025 to October 2026 were traps by the rule.

Traps are part of reading breakouts in technical analysis. Several chart patterns are failed moves of the same kind, such as the failed head and shoulders and the dead cat bounce; our bench measures them on real markets, and the method is described in how we test patterns.