Oct 13 close Sign in

Breakouts & channels · daily rule · Financials

P&F Double Top on Sprott

What the play says

Out since Sep 16, 2026at C$173.67SII since then −5.6%

Next move

Stays out until a daily close lands above C$190.13.

C$190.13
+15.9% from the Oct 13 close of C$163.98

Next check: the Oct 14, 2026 close

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

SII with the play, last two years

SIIDouble-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 2008

P&F Double TopBuy & hold

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

The record

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

Play, since 2008Hold, since 2008Play, 5 yrsHold, 5 yrs
Annual return+7.7%+9.4%+18.1%+32.3%
Total return+283%+401%+129%+303%
Worst drawdown−73.7%−78.7%−43.3%−43.4%
Volatility32.1%43.5%29.4%37.4%
Sharpe ratio0.350.390.590.83
Time invested57%100%
Switches per year7.30

Every call, graded

Right on 47 of 132 closed calls (36%). In calls averaged +3.7%; out calls saw SII move +1.2% on average.

CalledCallPriceUntilSII movedResult
Sep 16, 2026OUTC$173.67now−5.6%open
Jul 22, 2026INC$152.33Sep 16, 2026+14.0%✓ right
Jun 24, 2026OUTC$150.85Jul 22, 2026+1.0%✕ wrong
Jun 17, 2026INC$181.72Jun 24, 2026−17.0%✕ wrong
Jun 8, 2026OUTC$168.62Jun 17, 2026+7.8%✕ wrong
Jun 1, 2026INC$183.02Jun 8, 2026−7.9%✕ wrong
Apr 21, 2026OUTC$177.29Jun 1, 2026+3.2%✕ wrong
Apr 1, 2026INC$202.57Apr 21, 2026−12.5%✕ wrong
Mar 13, 2026OUTC$201.48Apr 1, 2026+0.5%✕ wrong
Nov 10, 2025INC$128.52Mar 13, 2026+56.8%✓ right
Oct 21, 2025OUTC$113.86Nov 10, 2025+12.9%✕ wrong
Apr 15, 2025INC$66.86Oct 21, 2025+70.3%✓ 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 133 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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