useful : wiki

Some of these tools were built for professional work. Others started simply for the joy of learning, and a few are open source forks taken further. Knowledge works best when it is shared, and AI makes that easier now, from vibe coding an idea into a working tool to figuring out hosting on Vercel or cPanel. This is an ambitious project, and it starts with SEC and EDGAR because that data is not paywalled and is easier to build on.

  • SEC: Don’t let 980,000 CIK numbers overwhelm you [coming soon]
  • SEC: A complete guide to 500+ EDGAR forms [coming soon]

Plenty, but this is still a project in stealth mode and effectively a one-man effort today. Stocks, strategy, business processes, CI/CD, technology, economics, more datasets, even board agendas, there is a lot to talk about and knowledge worth sharing. Working on it, bit by bit.

If you have an article, a tool or an app you would like to share, write to support@useful.wiki. Every idea goes through a quick feasibility check before it moves forward.

The tools and knowledge here are free to use for your professional work, under a simple and unwritten fair use policy. A mention of useful.wiki as the source is appreciated, but entirely optional.

Write to support@useful.wiki. Every email gets a reply, guaranteed.

Useful tools for practitioners

sec filings · app

Extract qualitative sections from 10-K and 10-Q filings

Extract business descriptions, risk factors, MD&A, legal proceedings and other qualitative sections from more than 290,000 filings since 2015, covering both active and delisted companies. →

sec filings · dataset · learning

The 8-K Filings Ledger

More than 65,000 Form 8-K reports are filed each year, covering 30 types of current events. Search the organized dataset and use the plain-language guide to understand what each Item means. →

sec filings · dataset

Filing Summary Maps

Every financial filing includes a routing map for its statements and notes. This dataset brings those maps together for more than 5,000 companies, helping you find the right disclosure faster. →

sec filings · learning · dataset · [coming soon]

Do not let 980,000 CIK numbers overwhelm you

Understanding CIKs is essential to working effectively with EDGAR. This guide explains CIKs for operating companies, individuals, funds and business development companies and why only about 15% are active.

sec filings · learning · [coming soon]

A complete guide to 500+ EDGAR forms

Many EDGAR forms contain valuable information that is easy to overlook. This guide explains what to look for across more than 500 form types in the SEC’s public repository.