Cornerstone Portfolio Research

Cornerstone is led by its founding team of former bank analysts, though individual names are not publicly promoted. The firm maintains a flat research structure with each sector analyst contributing directly to buy/sell decisions (per public record).

Cornerstone does not rely on proprietary deal flow; it invests exclusively in public equities. The firm's edge comes from deep fundamental research on companies it already follows, often holding positions for 5-10 years (per the firm's published whitepapers).

Cornerstone is a registered investment advisor (RIA) and functions as a traditional asset manager, not a family office. It serves multiple clients including family offices, endowments, and high-net-worth individuals (per public filings).

Cornerstone manages both separately managed accounts (SMAs) and a pooled vehicle. Client capital is commingled in a single strategy portfolio, with no co-investment or direct-deal options (per firm documentation).

Cornerstone targets only publicly traded companies across the market-cap spectrum, from mid-cap to mega-cap. It does not invest in private companies, venture-stage, or pre-IPO offerings (per public record).

Cornerstone has publicly stated it avoids commodity-oriented sectors (energy, metals, agriculture) and companies with high financial leverage (per whitepapers). It also avoids industries it considers insufficiently transparent, such as biotech pre-FDA approval.

Cornerstone does not participate in co-investments. Its mandate restricts itself to public-market equities, and no partnership structure exists with private equity or venture capital firms (per public record).