Open S.E.C. is a web service datafeed for fundamental financial data from income statements, balance sheets, and statements of cash flows as reported to the Securities and Exchange forms 10-K (annnual report) and 10-Q (quarterly). We use logical/syntactic parsing algorithms to retrieve and build databases of financial statements from publicly available source documents. We provide a raw public datafeed which is free and open to use for all purposes, including but not limited to quantitative financial modeling and trading, risk management, programming and development of financial applications, industry research, fundamental equity analysis, and academic research.