Methodology

A model per stock.

Most quant shops train one model for the whole market. We train one for every name. Here is why, and what it buys an asset manager.

Eldarion Research · 4 min read

The default in quantitative equity research is a single cross-sectional model: one set of factor weights applied across thousands of stocks. It is elegant, cheap to run, and easy to explain. It also averages away the very thing a stock-picker cares about, what makes this name move.

One market, many machines

Eldarion takes the opposite route. We train an individual machine-learning model on each of 5,000+ equities. Each model learns the drivers that matter for its own name, the factors, the regimes, the sensitivities, rather than borrowing an average fitted across the index.

The output is a clean, name-level forecast: an expected return at 1-month and 3-month horizons for every stock in the universe, refreshed continuously.

A single model tells you what the market rewards on average. A model per stock tells you what moves the stock in front of you.

What it buys you

Sharper signal. Name-specific models capture idiosyncratic drivers that a one-size model smooths over.

Coverage at scale. A quant research team's worth of names, ranked the same way, every day, the strongest and weakest of the market at a glance.

A clean unit to explain. Because each forecast is its own model, each comes with its own factor attribution. That is what makes the call defensible to an investment committee (more on that in our note on explainability).

The discipline behind it

Training thousands of models invites one obvious risk: overfitting. So the method is only as good as its guardrails. Every model is validated out-of-sample on data it never saw in training, retrained as markets evolve, and constrained by risk controls before any forecast informs a strategy. Rigour is not a feature bolted on at the end, it is the condition for the approach to work at all.

Eldarion is pre-revenue. Figures are model estimates, not forecasts or guarantees, and nothing here is investment advice.

See the engine behind the method.