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Volume & money flow · daily rule · Energy & power

Money Flow Index on TransAlta

What the play says

Out since May 25, 2026at C$18.71TA since then +0.4%

Latest reading: MFI 73.82

Next move

No single daily close can flip this call, not even one as low as C$4.70 or as high as C$75.12. 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

TA with the play, last two years

TAPlay 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 TA over exactly the same dates, after costs.

Play, since 2005Hold, since 2005Play, 5 yrsHold, 5 yrs
Annual return+4.5%+3.9%+6.0%+8.1%
Total return+160%+129%+34%+48%
Worst drawdown−70.8%−84.1%−44.2%−44.2%
Volatility22.8%29.9%23.6%33.3%
Sharpe ratio0.230.220.210.29
Time invested48%100%
Switches per year3.30

Every call, graded

Right on 51 of 72 closed calls (71%). In calls averaged +3.3%; out calls saw TA move +2.4% on average.

CalledCallPriceUntilTA movedResult
May 25, 2026OUTC$18.71now+0.4%open
Jan 5, 2026INC$17.51May 25, 2026+6.9%✓ right
Jun 13, 2025OUTC$14.81Jan 5, 2026+18.3%✕ wrong
Jan 16, 2025INC$19.20Jun 13, 2025−22.9%✕ wrong
May 7, 2024OUTC$9.34Jan 16, 2025+105.6%✕ wrong
Jan 25, 2024INC$9.49May 7, 2024−1.6%✕ wrong
Nov 16, 2023OUTC$10.83Jan 25, 2024−12.4%✓ right
Nov 1, 2023INC$9.84Nov 16, 2023+10.1%✓ right
Aug 3, 2023OUTC$12.57Nov 1, 2023−21.7%✓ right
Jun 30, 2023INC$11.70Aug 3, 2023+7.4%✓ right
Apr 20, 2023OUTC$11.17Jun 30, 2023+4.7%✕ wrong
Oct 14, 2022INC$10.10Apr 20, 2023+10.6%✓ 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 73 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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