AlphaSMO Launches Free API Built on Cleaned SEC EDGAR 13F Institutional Filing Data

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A team has spent months cleaning SEC EDGAR Form 13F data, which requires over 13,000 institutional investment managers to disclose U.S. equity holdings each quarter. The raw data presents significant challenges, including duplicate entity names, unresolvable CUSIPs, staggered filing deadlines up to 45 days after quarter-end, and shifting XML schemas from amendment filings. These issues can silently produce incorrect analytics, such as miscounting first-time filers' portfolios as new inflows with no prior-quarter data to compare against. To make this data accessible, the team built AlphaSMO, a free public API, CLI, and MCP server that sits atop the cleaned 13F and Form 4 insider-trading data with no signup required. The platform's key feature is a 'smart money convergence' signal that identifies stocks where both institutional investors and company insiders are buying simultaneously.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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