Volume & money flow · daily rule · Market indexes
Money Flow Index on Nasdaq-100 index
What the play says
Latest reading: MFI 51.04
Nasdaq-100 with the play, last two years
Shading shows the play's call from the close that triggered it.
Money Flow Index (14)
Dashed lines at 20, 80.
Growth of 10,000 since 2005
Log scale. After trading costs, with T-bill interest while out.
The record
The play against buying and holding Nasdaq-100 over exactly the same dates, after costs.
| Play, since 2005 | Hold, since 2005 | Play, 5 yrs | Hold, 5 yrs | |
|---|---|---|---|---|
| Annual return | +5.9% | +14.5% | +8.8% | +15.7% |
| Total return | +248% | +1,806% | +52% | +107% |
| Worst drawdown | −49.6% | −53.7% | −27.0% | −35.6% |
| Volatility | 15.3% | 22.0% | 17.3% | 23.2% |
| Sharpe ratio | 0.34 | 0.65 | 0.36 | 0.58 |
| Time invested | 33% | 100% | ||
| Switches per year | 1.1 | 0 |
Every call, graded
Right on 14 of 24 closed calls (58%). In calls averaged +9.6%; out calls saw Nasdaq-100 move +20.2% on average.
| Called | Call | Price | Until | Nasdaq-100 moved | Result |
|---|---|---|---|---|---|
| May 19, 2025 | OUT | 21,447 | now | +42.5% | open |
| Mar 14, 2025 | IN | 19,705 | May 19, 2025 | +8.8% | ✓ right |
| Nov 21, 2023 | OUT | 15,934 | Mar 14, 2025 | +23.7% | ✕ wrong |
| Oct 3, 2022 | IN | 11,230 | Nov 21, 2023 | +41.9% | ✓ right |
| Jul 22, 2022 | OUT | 12,396 | Oct 3, 2022 | −9.4% | ✓ right |
| Jan 26, 2022 | IN | 14,173 | Jul 22, 2022 | −12.5% | ✕ wrong |
| Feb 28, 2017 | OUT | 5,330.31 | Jan 26, 2022 | +165.9% | ✕ wrong |
| Nov 7, 2016 | IN | 4,773.73 | Feb 28, 2017 | +11.7% | ✓ right |
| Jul 19, 2016 | OUT | 4,603.28 | Nov 7, 2016 | +3.7% | ✕ wrong |
| Jan 19, 2016 | IN | 4,147.07 | Jul 19, 2016 | +11.0% | ✓ right |
| May 23, 2013 | OUT | 2,991.45 | Jan 19, 2016 | +38.6% | ✕ wrong |
| Jun 5, 2012 | IN | 2,487.50 | May 23, 2013 | +20.3% | ✓ 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 25 calls shown.
How the play works
- In when the 14-day MFI crosses up through 20.
- 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.