Oct 13 close Sign in

Breakouts & channels · daily rule · Financials

P&F Double Top on TMX Group

What the play says

In since Jul 31, 2026at C$50.99X since then +4.4%

Next move

Stays in unless a daily close lands below C$43.92.

C$43.92
−17.5% from the Oct 13 close of C$53.22

Next check: the Oct 14, 2026 close

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

X with the play, last two years

XDouble-top buy levelDouble-bottom sell levelPlay inPlay out

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

Growth of C$10,000 since 2005

P&F Double TopBuy & hold

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

The record

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

Play, since 2005Hold, since 2005Play, 5 yrsHold, 5 yrs
Annual return+10.9%+14.7%+10.0%+17.0%
Total return+850%+1,849%+61%+119%
Worst drawdown−49.4%−59.4%−22.3%−22.8%
Volatility19.4%24.8%16.6%19.5%
Sharpe ratio0.540.600.430.71
Time invested73%100%
Switches per year2.70

Every call, graded

Right on 23 of 58 closed calls (40%). In calls averaged +10.4%; out calls saw X move +3.1% on average.

CalledCallPriceUntilX movedResult
Jul 31, 2026INC$50.99now+4.4%open
Jun 25, 2026OUTC$45.19Jul 31, 2026+12.8%✕ wrong
Apr 15, 2026INC$53.13Jun 25, 2026−14.9%✕ wrong
Oct 7, 2025OUTC$50.86Apr 15, 2026+4.5%✕ wrong
Oct 5, 2022INC$25.11Oct 7, 2025+102.5%✓ right
Sep 28, 2022OUTC$23.39Oct 5, 2022+7.4%✕ wrong
Mar 4, 2022INC$24.60Sep 28, 2022−4.9%✕ wrong
Nov 30, 2021OUTC$22.44Mar 4, 2022+9.6%✕ wrong
Aug 5, 2021INC$25.41Nov 30, 2021−11.7%✕ wrong
Nov 10, 2020OUTC$22.06Aug 5, 2021+15.2%✕ wrong
Mar 25, 2020INC$18.29Nov 10, 2020+20.6%✓ right
Mar 12, 2020OUTC$17.83Mar 25, 2020+2.6%✕ wrong

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 59 calls shown.

How the play works

  1. In on a double-top breakout: the current X column rises at least one box above the top of the previous X column.
  2. Out on a double-bottom breakdown: the current O column falls at least one box below the bottom of the previous O column.
  3. Otherwise the rule keeps the chart's last signal.

Boxes are 2% apart, and a new column needs a 3-box reversal (about 6%). Dorsey's classic box table uses fixed price bands; ChartSchool's examples use 1% boxes.

The chart is built from daily highs and lows by StockCharts' high-low method: a new box from the high wins, and the low only counts if it reverses the column.

The signal fires on the day the breakout box fills during the day. Be The Puck acts on that day's close.

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.

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