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Volume & money flow · daily rule · Industrials & materials

Money Flow Index on Air Canada

What the play says

Out since May 21, 2025at C$18.36AC since then +21.5%

Latest reading: MFI 30.70

Next move

No single daily close can flip this call, not even one as low as C$5.58 or as high as C$89.24. It needs the MFI to cross 20 or 80, which takes more than one day from here.

Next check: the Oct 15, 2026 close

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

AC with the play, last two years

ACPlay 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 2010

Money Flow IndexBuy & hold

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

The record

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

Play, since 2010Hold, since 2010Play, 5 yrsHold, 5 yrs
Annual return+5.2%+14.4%−2.1%−0.6%
Total return+130%+814%−10%−3%
Worst drawdown−69.7%−78.9%−48.3%−51.4%
Volatility33.7%45.9%25.4%36.2%
Sharpe ratio0.270.49−0.110.06
Time invested42%100%
Switches per year2.60

Every call, graded

Right on 24 of 42 closed calls (57%). In calls averaged +7.1%; out calls saw AC move +12.6% on average.

CalledCallPriceUntilAC movedResult
May 21, 2025OUTC$18.36now+21.5%open
Jan 23, 2025INC$20.08May 21, 2025−8.6%✕ wrong
Oct 21, 2024OUTC$18.31Jan 23, 2025+9.7%✕ wrong
Jun 26, 2024INC$17.54Oct 21, 2024+4.4%✓ right
Apr 9, 2024OUTC$19.69Jun 26, 2024−10.9%✓ right
Aug 11, 2023INC$23.60Apr 9, 2024−16.6%✕ wrong
May 18, 2023OUTC$22.23Aug 11, 2023+6.2%✕ wrong
Mar 29, 2023INC$18.52May 18, 2023+20.0%✓ right
Aug 17, 2022OUTC$19.35Mar 29, 2023−4.3%✓ right
Jul 5, 2021INC$26.95Aug 17, 2022−28.2%✕ wrong
Nov 20, 2020OUTC$21.01Jul 5, 2021+28.3%✕ wrong
Mar 2, 2020INC$34.57Nov 20, 2020−39.2%✕ 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 43 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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