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Volume & money flow · daily rule · Industrials & materials

Money Flow Index on ATS Corporation

What the play says

Out since May 21, 2025at C$36.69ATS since then −31.6%

Latest reading: MFI 25.89

Next move

No single daily close can flip this call, not even one as low as C$6.27 or as high as C$100.36. 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

ATS with the play, last two years

ATSPlay 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 ATS over exactly the same dates, after costs.

Play, since 2005Hold, since 2005Play, 5 yrsHold, 5 yrs
Annual return+14.8%+3.9%+3.6%−9.7%
Total return+1,881%+130%+19%−40%
Worst drawdown−47.6%−83.6%−47.6%−60.9%
Volatility26.8%40.7%26.9%39.7%
Sharpe ratio0.580.250.12−0.15
Time invested40%100%
Switches per year3.80

Every call, graded

Right on 61 of 83 closed calls (73%). In calls averaged +8.1%; out calls saw ATS move −1.5% on average.

CalledCallPriceUntilATS movedResult
May 21, 2025OUTC$36.69now−31.6%open
Jan 17, 2025INC$38.31May 21, 2025−4.2%✕ wrong
Oct 1, 2024OUTC$39.24Jan 17, 2025−2.4%✓ right
Oct 25, 2023INC$48.51Oct 1, 2024−19.1%✕ wrong
May 5, 2023OUTC$57.55Oct 25, 2023−15.7%✓ right
Mar 27, 2023INC$54.88May 5, 2023+4.9%✓ right
Feb 6, 2023OUTC$53.40Mar 27, 2023+2.8%✕ wrong
Sep 7, 2022INC$39.59Feb 6, 2023+34.9%✓ right
Aug 22, 2022OUTC$41.81Sep 7, 2022−5.3%✓ right
Feb 28, 2022INC$49.15Aug 22, 2022−14.9%✕ wrong
Nov 18, 2021OUTC$48.62Feb 28, 2022+1.1%✕ wrong
Oct 1, 2021INC$40.84Nov 18, 2021+19.0%✓ 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 84 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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