Repeat Conviction
A CEO or board member is buying their stock — again.
The narrative pick. When the same CEO or director buys their own company's stock twice within 90 days, it's a deliberate, sustained signal — they liked it at €X, they like it more at €Y. Doesn't clear our formal alpha bar — included for the story; ships labelled experimental.
How the rule fires
Insider role ∈ {CEO, Board} · transaction is a buy · the same insider bought the same company at least once in the prior 90 days.Hypothetical, frictionless. €1,000staked the moment each signal fired, closed at the screen's default horizon. No trading costs, no slippage, no taxes. Backtest window 2025-05-19 → 2026-04-19.
Every backtest trade
533 signals · 30-day horizon · €1,000 notional per trade| Filing date | Company | Insider | Value | Horizon | Raw return | € P&L | |
|---|---|---|---|---|---|---|---|
| 2026-04-17 | 🇸🇪 | Xer Tech Holding AB $XER | Thomas Lundin Member of the Board of Directors | €544 | 30d | -5.0% | −€50 |
| 2026-04-16 | 🇩🇪 | ProCredit Holding AG $PCZ | Joleska Popovska, Jovanka Aufsichtsrat | €1k | 30d | -7.0% | −€70 |
| 2026-04-16 | 🇸🇪 | Skanska AB | Anders Danielsson Chief Executive Officer (CEO)/Managing Directory | €28k | 30d | -3.5% | −€35 |
| 2026-04-16 | 🇸🇪 | Skanska AB | Anders Rättgård Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors | €400 | 30d | -3.5% | −€35 |
| 2026-04-16 | 🇸🇪 | Skanska AB | Åsa Widholm Thunman Other member of the company's administrative, management or supervisory body | €2k | 30d | -3.5% | −€35 |
| 2026-04-16 | 🇸🇪 | Skanska AB | Claes Larsson Other member of the company's administrative, management or supervisory body | €14k | 30d | -3.5% | −€35 |
| 2026-04-16 | 🇸🇪 | Skanska AB | Fredrik Norrman Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors | €3k | 30d | -3.5% | −€35 |
| 2026-04-16 | 🇸🇪 | Skanska AB | Hans Reinholdsson Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors | €2k | 30d | -3.5% | −€35 |
| 2026-04-16 | 🇸🇪 | Skanska AB | Lena Hök Other member of the company's administrative, management or supervisory body | €7k | 30d | -3.5% | −€35 |
| 2026-04-16 | 🇸🇪 | Skanska AB | Malte Fält Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors | €756 | 30d | -3.5% | −€35 |
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Sign up — free⚠️ Risks
Below the formal acceptance bar — mean of +2.4% is modest, drop-top-5 mean is only +1.2%, hit rate is 52%. We ship this as an experimental screen because the narrative is strong and the t-stat is real, but expect the edge to be small after costs. High frequency (~35 events/month) means alert fatigue risk.
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Free. Each alert names the company, insider, role, and value, with a link to the source filing. We add the safety filters we have (earnings-window suppression where data exists); we never wrap any screen as a recommendation.