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Momentum · month-end rule · Industrials & materials

12-1 Momentum on Ferrovial

What the play says

In since Jan 31, 2023at $27.88FER since then +81.3%

Latest reading: 12-1 return 1.9%

Next move

The next check flips it whatever the price: the rule will sell.

At the latest close ($50.56) the rule would already sell if the month ended today.

Next check: this month's close, Oct 30, 2026

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

FER with the play, last two years

FERPlay inPlay out

Shading shows the play's call from the close that triggered it.

Return from 12 months to 1 month ago

12-1 return

Dashed line at 0.

Growth of $10,000 since 2013

12-1 MomentumBuy & hold

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

The record

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

Play, since 2013Hold, since 2013Play, 5 yrsHold, 5 yrs
Annual return+8.8%+10.8%+11.0%+14.1%
Total return+202%+282%+68%+93%
Worst drawdown−45.3%−41.2%−31.9%−31.9%
Volatility29.8%33.2%26.5%31.3%
Sharpe ratio0.370.420.380.46
Time invested74%100%
Switches per year0.90

Every call, graded

Right on 6 of 12 closed calls (50%). In calls averaged +9.1%; out calls saw FER move +5.2% on average.

CalledCallPriceUntilFER movedResult
Jan 31, 2023IN$27.88now+81.3%open
Apr 29, 2022OUT$22.36Jan 31, 2023+24.7%✕ wrong
Jan 31, 2022IN$23.31Apr 29, 2022−4.1%✕ wrong
Dec 31, 2021OUT$24.80Jan 31, 2022−6.0%✓ right
Mar 31, 2021IN$22.69Dec 31, 2021+9.3%✓ right
Aug 31, 2020OUT$24.01Mar 31, 2021−5.5%✓ right
Feb 28, 2019IN$18.72Aug 31, 2020+28.3%✓ right
Nov 30, 2018OUT$17.12Feb 28, 2019+9.4%✕ wrong
Oct 31, 2018IN$17.02Nov 30, 2018+0.6%✓ right
May 31, 2018OUT$16.97Oct 31, 2018+0.2%✕ wrong
Jun 30, 2017IN$18.40May 31, 2018−7.7%✕ wrong
Feb 29, 2016OUT$17.02Jun 30, 2017+8.1%✕ 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 13 calls shown.

How the play works

  1. In at month-end when the return from 12 months ago to 1 month ago is above zero.
  2. Out when it is zero or below.

Jegadeesh and Titman ranked thousands of stocks and bought the winners. Testing one stock against zero is time-series momentum, a related idea.

The skip-a-month form came later; their 1993 paper skipped at most a week.

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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