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Volume & money flow · daily rule · Financials

Money Flow Index on National Bank of Canada

What the play says

Out since Mar 2, 2026at C$187.17NA since then +8.1%

Latest reading: MFI 44.06

Next move

No single daily close can flip this call, not even one as low as C$50.58 or as high as C$809.24. 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

NA with the play, last two years

NAPlay 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 NA over exactly the same dates, after costs.

Play, since 2005Hold, since 2005Play, 5 yrsHold, 5 yrs
Annual return+8.5%+14.7%+15.3%+19.4%
Total return+489%+1,854%+103%+141%
Worst drawdown−25.7%−58.5%−14.3%−22.6%
Volatility11.9%22.3%10.5%18.1%
Sharpe ratio0.600.651.050.86
Time invested28%100%
Switches per year2.10

Every call, graded

Right on 28 of 46 closed calls (61%). In calls averaged +7.2%; out calls saw NA move +10.2% on average.

CalledCallPriceUntilNA movedResult
Mar 2, 2026OUTC$187.17now+8.1%open
Feb 3, 2026INC$161.37Mar 2, 2026+16.0%✓ right
Jun 4, 2025OUTC$128.78Feb 3, 2026+25.3%✕ wrong
Mar 19, 2025INC$112.06Jun 4, 2025+14.9%✓ right
Aug 27, 2024OUTC$111.84Mar 19, 2025+0.2%✕ wrong
Jun 26, 2024INC$101.12Aug 27, 2024+10.6%✓ right
Feb 7, 2023OUTC$88.45Jun 26, 2024+14.3%✕ wrong
Dec 20, 2022INC$79.82Feb 7, 2023+10.8%✓ right
Nov 2, 2022OUTC$79.92Dec 20, 2022−0.1%✓ right
Sep 9, 2022INC$78.59Nov 2, 2022+1.7%✓ right
Aug 9, 2022OUTC$77.87Sep 9, 2022+0.9%✕ wrong
Jun 20, 2022INC$75.08Aug 9, 2022+3.7%✓ 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 47 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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