Oct 13 close Sign in

Breakouts & channels · daily rule · Indexes & ETFs

TTM Squeeze on S&P 500 ETF

What the play says

Out since Jul 20, 2026at $740.25SPY since then +5.1%

Latest reading: Momentum 12.36

Next move

No single daily close can flip this call, not even one as low as $194.50 or as high as $3,112.04. It needs the Bollinger Bands to squeeze inside the Keltner Channel and then fire with momentum above zero and rising.

Next check: the Oct 14, 2026 close

See every reason, for and against, in the Theory tester

SPY with the play, last two years

SPYBollinger upper (20, 2)Keltner upper (20, 1.5 ATR)Play inPlay out

Shading shows the play's call from the close that triggered it.

Squeeze momentum (20)

Momentum

Dashed line at 0.

Growth of $10,000 since 2005

TTM SqueezeBuy & hold

Log scale. After trading costs, with T-bill interest while out.

The record

The play against buying and holding SPY over exactly the same dates, after costs.

Play, since 2005Hold, since 2005Play, 5 yrsHold, 5 yrs
Annual return+1.6%+11.0%+5.5%+13.9%
Total return+40%+861%+31%+91%
Worst drawdown−17.1%−55.2%−4.7%−24.5%
Volatility4.3%18.9%4.1%17.1%
Sharpe ratio−0.030.550.400.62
Time invested11%100%
Switches per year5.70

Every call, graded

Right on 38 of 126 closed calls (30%). In calls averaged +0.1%; out calls saw SPY move +3.9% on average.

CalledCallPriceUntilSPY movedResult
Jul 20, 2026OUT$740.25now+5.1%open
Jul 9, 2026IN$749.85Jul 20, 2026−1.3%✕ wrong
Feb 2, 2026OUT$690.02Jul 9, 2026+8.7%✕ wrong
Jan 27, 2026IN$690.10Feb 2, 20260.0%✕ wrong
Nov 7, 2025OUT$663.81Jan 27, 2026+4.0%✕ wrong
Oct 27, 2025IN$677.93Nov 7, 2025−2.1%✕ wrong
Sep 30, 2025OUT$659.07Oct 27, 2025+2.9%✕ wrong
Sep 10, 2025IN$643.47Sep 30, 2025+2.4%✓ right
Feb 3, 2025OUT$586.25Sep 10, 2025+9.8%✕ wrong
Jan 21, 2025IN$591.43Feb 3, 2025−0.9%✕ wrong
Feb 14, 2024OUT$482.77Jan 21, 2025+22.5%✕ wrong
Jan 19, 2024IN$467.14Feb 14, 2024+3.3%✓ right

An in call is right when the price rose before the next call; an out call is right when it fell. The latest 12 of 127 calls shown.

How the play works

  1. The squeeze is on while the Bollinger Bands (20 days, 2 standard deviations) sit inside the Keltner Channel (20 days, 1.5 × average true range). It fires on the first day it turns off.
  2. In on the firing day if the momentum histogram is above zero and rising.
  3. Out after two days in a row of falling momentum, or when momentum drops below zero.

Carter's momentum formula is proprietary. Be The Puck uses StockCharts' version: a 20-day linear-regression reading of the close minus the average of the 20-day midrange and the 20-day average.

The Keltner Channel is built as a 20-day average ± 1.5 × the 20-day simple average of true range.

A squeeze that fires with negative or falling momentum is Carter's short signal, so the rule stays out.

Where the rules come from

The case against

Valeriy Zakamulin tested moving-average timing on up to 155 years of U.S. stock data and found no statistically significant edge in the second half of that record. The rules earned their keep in a few severe bear markets and lagged buy and hold for long stretches in between.

Read the skeptic's scoreboard

Free account

Know the moment the light flips on your stocks.

Follow your stocks and get an email with the analysis the evening a light flips. Member tools are free until January 1, 2027.