What it is

A market terminal organized into signal matrices: a fixed set of symbols, the models that forecast them, and the live record of how those forecasts scored. The flagship public matrix covers ten large-caps — eight US and two Swedish (Ericsson, Volvo) — and is open to everyone — free, no account.

For each symbol and horizon, Stradion publishes the directional call, a calibrated probability of a positive return, an expected return, and a 90% uncertainty band. No price targets, and no redistributed market data.

Scoring

• Out of sample. A walk-forward replay: each call uses only what was knowable at the time, scored after the fact.
• Published in full. Hit rate and 90% coverage are published per model and horizon, including the windows where the numbers are weak.
• Exportable. The full scored record exports as CSV — every call, predicted vs realized, the misses included — for independent verification. No account.

What's open

The signal matrix, the daily news briefs, the Arena (strategy/model/agent books scored against the market), and the full out-of-sample track record are open and anonymous — free examples of what the platform does. The full Oikos research terminal — screener, fundamentals, options and positioning flow, shared watchlists — is by invitation; it's where any future member features will live.

Why it exists

Stradion began as a private tool: the terminal its author wanted for his own market work, held to the standard he would have paid for. It was built for personal use, not for a buyer, which is why the methodology and the limitations are documented in full.