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Dev.to
6/15/2026
Penny Stock Due Diligence From Your Terminal: A Free CLI

Penny Stock Due Diligence From Your Terminal: A Free CLI

Short summary

PennyTune is a free, open-source CLI that automates SEC filing analysis to surface forensic red flags in penny stocks—dilution, delisting risk, accounting quality issues. It runs locally with no API keys, emphasizing evidence over buy/sell verdicts. The tool includes 365 automated tests and CI coverage across 12 OS/Python combinations, addressing the gap between basic screeners and manual filing review.

  • •CLI tool parses SEC filings to detect forensic red flags in penny stocks (dilution, delisting risk, accounting issues)
  • •Runs locally, no API keys or accounts needed; surfaces evidence, not buy/sell signals
  • •MIT open-source with rigorous test coverage (365 tests across 12 OS/Python combinations)

Generated with AI, which can make mistakes.

#open-source#product-launch
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