What Is the TTM Squeeze? The Compression-Breakout Cycle Explained

Markets do not move at a constant speed. They alternate between two states: compression, where price coils into a tighter and tighter range, and expansion, where the stored energy releases in a directional move. The TTM Squeeze is an indicator built to detect exactly one thing — the moment a market shifts from compression to expansion. It will not tell you where price is going. It tells you when the market is loaded, and pairs that with a separate momentum reading that suggests which way the release is leaning.

That distinction matters, and most introductions gloss over it. The squeeze itself has no direction. Treating it as a buy signal on its own is the single most common way traders misuse it.

The two bands: Bollinger inside Keltner

The squeeze is a relationship between two well-known volatility envelopes drawn around the same 20-period moving average:

• Bollinger Bands (BB) — a 20-period simple moving average of close, plus and minus two standard deviations of close. Standard deviation reacts fast: when price goes quiet, the Bollinger Bands pinch inward within a few bars.
• Keltner Channels (KC) — the same 20-period SMA basis, but the envelope is built from the Average True Range (a 20-period average of True Range) instead of standard deviation. ATR is a steadier, slower measure of range, so the Keltner Channels breathe more gradually.

Because the fast envelope (BB) contracts quicker than the slow one (KC), a quiet market eventually pulls the Bollinger Bands entirely inside the Keltner Channels — upper band below upper channel and lower band above lower channel. That condition, on both sides at once, is the squeeze. Volatility is being wound like a spring.

Compression levels: not all squeezes are equal

The original TTM Squeeze used a single Keltner multiplier (1.5×ATR): the squeeze was simply on or off. The Squeeze Pro refinement — popularized in John Carter's circle and released as the open-source Beardy Squeeze Pro script, which The Pulse replicates parameter-for-parameter — draws three Keltner Channels at multipliers of 2.0, 1.5 and 1.0 ATR and grades how deep the compression goes:

• Low compression — BB inside the widest channel (2.0×ATR). Price is quieting down.
• Mid compression — BB inside the 1.5×ATR channel. This is the classic original squeeze.
• High compression — BB inside the tightest channel (1.0×ATR). The market is wound extremely tight; these are the rarest and often precede the largest expansions.

Note the inversion that trips people up: the smallest multiplier is the tightest channel, so fitting inside it is the deepest compression. A high-compression squeeze means the Bollinger Bands have shrunk inside a Keltner Channel only 1.0 ATR wide.

The fire

The squeeze "fires" when the Bollinger Bands expand back outside the Keltner Channels. Volatility has returned; the spring has released. In squeeze terminology this is the moment of interest — Carter's original rule of thumb was to consider entries on the first bar after the fire, in the direction of momentum, and to reassess within a handful of bars.

Two honest caveats. First, the fire tells you expansion has started, not that it will continue — plenty of fires fizzle within a few bars, especially on low timeframes and in news-driven chop. Second, the fire is only detectable on a closed bar; an in-progress bar can drift in and out of squeeze conditions before it settles.

Momentum: the directional half of the system

Because compression is directionless, the TTM Squeeze pairs it with a momentum histogram. The construction is more thoughtful than a simple rate-of-change: take the close, subtract a blended anchor — the average of (a) the midpoint of the highest high and lowest low over the lookback, and (b) the SMA of close over the same lookback — then fit a linear regression to that difference. The regression's endpoint is the histogram value. In Pine terms: linreg(close − avg(avg(highest, lowest), sma(close)), length, 0).

The histogram is read by sign and slope, giving the familiar four colors:

The classic playbook combines the two halves: a deep squeeze building while momentum turns aqua suggests a loaded market leaning long; the same squeeze with deepening red momentum leans short. The squeeze supplies energy, momentum supplies direction. Neither is sufficient alone.

Where the TTM Squeeze came from

Credit where due: the TTM Squeeze was created by John Carter (of Simpler Trading), who popularized it in Mastering the Trade. The multi-level "Squeeze Pro" concept came later from the same lineage, and the open-source Beardy Squeeze Pro Pine Script is the community's reference implementation of it. The Pulse's squeeze engine was built against that script and verified bar-by-bar against TradingView — same SMA basis, same population standard deviation, same SMA-of-True-Range ATR, same 1.0/1.5/2.0 multipliers. We didn't invent the squeeze; we made it scannable across a whole board at once.

What the squeeze can't do

An honest tool description includes the failure modes:

• No direction. The squeeze itself never says long or short. Momentum, trend structure (see the EMA stack + SuperTrend guide), and higher-timeframe context have to supply that.
• False fires. Volatility expansion can reverse. A fire into a major level, or against the higher-timeframe trend, fails more often than one aligned with it.
• Timeframe dependence. A 5-minute squeeze and a weekly squeeze are entirely different events with different expectancies — which is why multi-timeframe confluence matters more than any single squeeze.
• Data sensitivity. Borderline squeezes can flip on/off with tiny data differences between feeds, and on futures, badly-stitched continuous contracts can corrupt the bands outright (see the futures guide).

Used with those limits in mind, the squeeze is one of the cleanest answers to a question every trader asks: where is energy building right now? Answering it across many symbols and timeframes at once is exactly what a scanner is for.

For informational purposes only. Not financial advice. Trading involves substantial risk of loss. TTM Squeeze is associated with John Carter / Simpler Trading; The Pulse is an independent product of Technical Trading Academy and is not affiliated with or endorsed by them.