Oct 14 close Sign in

Breakouts & channels · daily rule · Energy & power

P&F Double Top on Capital Power

What the play says

Out since Sep 11, 2026at C$60.13CPX since then +4.1%

Next move

Stays out until a daily close lands above C$76.46.

C$76.46
+22.1% from the Oct 14 close of C$62.61

Next check: the Oct 15, 2026 close

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

CPX with the play, last two years

CPXDouble-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 2009

P&F Double TopBuy & hold

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

The record

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

Play, since 2009Hold, since 2009Play, 5 yrsHold, 5 yrs
Annual return+9.3%+13.7%+7.6%+13.4%
Total return+348%+768%+44%+87%
Worst drawdown−34.8%−47.4%−31.0%−33.8%
Volatility17.6%23.5%19.9%25.5%
Sharpe ratio0.510.600.280.47
Time invested74%100%
Switches per year1.90

Every call, graded

Right on 12 of 32 closed calls (38%). In calls averaged +11.9%; out calls saw CPX move +5.0% on average.

CalledCallPriceUntilCPX movedResult
Sep 11, 2026OUTC$60.13now+4.1%open
May 26, 2026INC$68.52Sep 11, 2026−12.2%✕ wrong
Apr 29, 2026OUTC$61.09May 26, 2026+12.2%✕ wrong
Feb 19, 2026INC$61.36Apr 29, 2026−0.4%✕ wrong
Jan 16, 2026OUTC$55.45Feb 19, 2026+10.7%✕ wrong
Apr 24, 2025INC$47.01Jan 16, 2026+17.9%✓ right
Jan 13, 2025OUTC$54.05Apr 24, 2025−13.0%✓ right
May 31, 2024INC$34.96Jan 13, 2025+54.6%✓ right
May 1, 2024OUTC$31.58May 31, 2024+10.7%✕ wrong
Nov 15, 2023INC$33.88May 1, 2024−6.8%✕ wrong
Mar 2, 2023OUTC$34.59Nov 15, 2023−2.1%✓ right
Dec 1, 2022INC$38.38Mar 2, 2023−9.9%✕ 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 33 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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