Aigen Investment Management, LP

Background

Aigen Investment Management, LP is a quantitative investment manager that runs a concentrated, model-driven equity strategy. The firm does not carry the public profile of larger institutional names, and its biographical footprint in the press is limited. What the numbers do say is notable: over the trailing twelve months, Aigen posted a +68.2% return against a backdrop where the S&P 500 generated roughly 17–18%, producing an alpha spread of approximately +50.5 percentage points. That figure is not typical of a diversified long-only fund, and it is not typical of a quant manager running hundreds of names. Aigen does neither — it runs fifty-two positions, a number tight enough to imply genuine conviction behind each allocation.

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Current Portfolio Signal

Aigen's current book reads like a curated cross-section of large-cap U.S. equity — with no single position dominating. Home Depot (HD) leads at just 1.6%, followed by Sempra (SRE) at 1.5% and Huntington Bancshares (HBAN) at 1.3%. Air Products (APD), Visa (V), and Capital One (COF) each sit in the 1.1–1.2% range. What's immediately striking is the flatness of the weight distribution: the top fifteen names span only 70 basis points from first to fifteenth, suggesting the manager…