On 19 April 2026, the Stock in Focus portfolio will be 10 years old. This rules-based portfolio was conceived during a casual chat with Ed in 2016. I wondered if I could create a set of screening rules to help me build a portfolio that would beat the market.
The strategy I adopted was influenced by notable guru investors including Jim Slater and Joel Greenblatt. I also added momentum metrics and a minimum holding period, after which stocks are reviewed for potential sale (and many are sold).
Dividends were always a requirement, but I upped my yield requirement last year to reflect the portfolio’s tilt towards an income strategy.
While SIF is a model portfolio, I’ve invested a part of my own portfolio in this strategy since 2017, so I’ve always had skin in the game.
Here’s a brief overview of how the strategy works:
I select new shares from my SIF stock-buying screen in a weekly review, adding new shares when possible, while taking into account diversification by sector and the number of existing holdings;
Shares are held for a minimum of nine months. However, if a stock issues a profit warning or falls by more than 25% below the portfolio’s cost price, it’s sold at the next weekly review;
After nine months, I test shares against my SIF stock-selling screen. If they pass all the rules, they remain in the portfolio subject to a rolling monthly review. If they fail, they’re sold.
SIF: 10-year performance
Barring market armageddon in the next couple of days, here’s how the portfolio has performed during its first decade:

Note: SIF portfolio dividends are included from 2025 onwards. The All-Share index excludes dividends.
In total, the SIF portfolio has delivered a gain of 139% since April 2016, or 9% annualised (including dividends since January 2025).
The FTSE All-Share index has risen by 70% on an equivalent basis over the same period, giving an annualised return of 5.5%.
A quick look at the chart above suggests that the portfolio has only outperformed in some years. Annual performance data confirm this. SIF has only outperformed the All-Share index in five of the last 10 years: