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Volume & money flow · daily rule · Software & devices

Money Flow Index on CGI

What the play says

Out since Apr 30, 2025at C$144.89GIB.A since then −29.1%

Latest reading: MFI 56.97

Next move

No single daily close can flip this call, not even one as low as C$25.68 or as high as C$410.80. It needs the MFI to cross 20 or 80, which takes more than one day from here.

Next check: the Oct 14, 2026 close

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

GIB.A with the play, last two years

GIB.APlay inPlay out

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

Money Flow Index (14)

MFI

Dashed lines at 20, 80.

Growth of C$10,000 since 2005

Money Flow IndexBuy & hold

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

The record

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

Play, since 2005Hold, since 2005Play, 5 yrsHold, 5 yrs
Annual return+8.1%+12.7%+4.2%−1.3%
Total return+445%+1,229%+22%−6%
Worst drawdown−29.6%−50.8%−12.0%−50.8%
Volatility18.6%25.9%8.7%22.7%
Sharpe ratio0.420.520.08−0.11
Time invested36%100%
Switches per year1.60

Every call, graded

Right on 20 of 35 closed calls (57%). In calls averaged +9.1%; out calls saw GIB.A move +11.3% on average.

CalledCallPriceUntilGIB.A movedResult
Apr 30, 2025OUTC$144.89now−29.1%open
Mar 10, 2025INC$149.42Apr 30, 2025−3.0%✕ wrong
Jul 29, 2024OUTC$148.00Mar 10, 2025+1.0%✕ wrong
Apr 11, 2024INC$142.87Jul 29, 2024+3.6%✓ right
Jul 22, 2022OUTC$107.77Apr 11, 2024+32.6%✕ wrong
Mar 3, 2022INC$103.69Jul 22, 2022+3.9%✓ right
Apr 8, 2021OUTC$105.36Mar 3, 2022−1.6%✓ right
Nov 4, 2020INC$83.71Apr 8, 2021+25.9%✓ right
Apr 15, 2020OUTC$81.49Nov 4, 2020+2.7%✕ wrong
Mar 10, 2020INC$93.66Apr 15, 2020−13.0%✕ wrong
Jan 27, 2020OUTC$111.16Mar 10, 2020−15.7%✓ right
Dec 19, 2019INC$109.09Jan 27, 2020+1.9%✓ 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 36 calls shown.

How the play works

  1. In when the 14-day MFI crosses up through 20.
  2. Out when it crosses down through 80.

The creators also stress divergences, which this rule ignores.

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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