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Show HN: OSS tool for testing out new trading thesis based on insider activity

https://github.com/bagoldbe/form4lab
1•bagoldbe•58m ago
Created a tool that ingests form 4 for a universe of stocks you define. pulls it all into a database, cleans the data e.g. planned trade vs. discretionary trade and allows you to test different trading hypothesis based on insider activities. You can backtest the different trading ideas.

Some illustrative trading ideas are cluster buys for insiders, large purchases relative to historical buys, exercise and holding rather than immediately selling, etc...

I've also designed it in a way that it can automatically trade via Alpaca API. I'm currently testing some of my own ideas via their paper trading accounts. Some promising ideas so far, buts it's only been ~4 months of trading in a relative bull market.

It's all open source. I used Railway to host it which has some minimal costs but can also host locally.

Welcome any feedback or thoughts.

Circle Receives Final OCC Approval to Establish National Trust Bank

https://www.circle.com/pressroom/circle-receives-final-occ-approval-to-establish-national-trust-bank
1•petethomas•1m ago•0 comments

A Love Letter to Flashcards

https://lesleylai.info/en/flashcards/
1•surprisetalk•2m ago•0 comments

OpenAI's Atlas browser doesn't make it to its first birthday

https://www.theregister.com/ai-and-ml/2026/07/10/openais-atlas-browser-doesnt-make-it-to-its-firs...
1•LorenDB•2m ago•0 comments

Where Is Downtown?

https://www.observingthecity.ca/downtown-definer
2•newer_vienna•6m ago•1 comments

Why accessing cuBLAS, cuFFT, cuDNN from within your Java application

https://www.tornadovm.org/blogs/java-at-the-metal-cuda-graphs-tensor-cores-cublas-cudnn-cufft
2•mikepapadim•6m ago•0 comments

Adam Tooze on the AI Arms Race – Ones and Tooze [video]

https://www.youtube.com/watch?v=QevC7OrdJP8
1•verdverm•6m ago•0 comments

Show HN: LoopVera – evidence ledger for pipeline debugging (no code yet)

https://github.com/Proofrun/LoopVera
1•cuirunxing•8m ago•0 comments

DNA signatures preserved in official 1978 sample collection of Shroud of Turin

https://www.nature.com/articles/s41598-026-60684-7
2•bookofjoe•9m ago•0 comments

Computation as a Universal and Fundamental Concept

https://ergo.org/courses/computation-as-a-universal-and-fundamental-concept
3•simonpure•9m ago•0 comments

I Did Not Kill Stanley Lieber: How to Draw (With 9front)

https://triapul.cz/automa/i_did_not_kill_stanley_lieber
2•birdculture•9m ago•0 comments

AI Is the Poisoned Apple of the SaaS Ecosystem

https://jlopes.eu/blog/ai-is-the-poisoned-apple-of-saas/
2•offeringofpie•9m ago•1 comments

Never Argue with Your Boss (2009)

https://righteousit.com/2009/03/12/never-argue-with-your-boss/
2•indigodaddy•11m ago•0 comments

Who Sends the Internet's Email? The 2026 Provider Market Share

https://dmarcguard.io/blog/email-provider-market-share/
1•meysamazad•11m ago•0 comments

BYD wins 11.3 GWh battery deal for largest solar+storage

https://electrek.co/2026/07/10/byd-masdar-11-gwh-rtc-storage-abu-dhabi/
2•Bender•12m ago•0 comments

Is an air-conditioning revolution coming to Europe?

https://arstechnica.com/science/2026/07/is-an-air-conditioning-revolution-coming-to-europe/
2•Bender•13m ago•0 comments

Babylon Lite – 19x Smaller

https://forum.babylonjs.com/t/introducing-babylon-lite/63648
2•riidom•14m ago•0 comments

NASA finally releases a critical planning document for private space stations

https://arstechnica.com/space/2026/07/nasa-finally-releases-a-critical-planning-document-for-priv...
2•Bender•14m ago•0 comments

Show HN: Tapeline – a stock scanner that publishes its formula and its losses

https://tapeline.io
2•tapeline_io•14m ago•0 comments

The .plan Archive

https://d8d.org/plan-archive/
4•twalichiewicz•15m ago•0 comments

The Side That Won the Civil War Is Now Banning Books About Why It Was Fought

https://lithub.com/the-side-that-won-the-civil-war-is-now-banning-books-about-why-the-civil-war-w...
4•Geekette•15m ago•0 comments

Ask HN: Do you still trace new codebases manually?

2•culopatin•15m ago•1 comments

Banter

https://homosabiens.substack.com/p/banter
2•surprisetalk•17m ago•0 comments

What Muse Spark 1.1 Taught Us About Enterprise Agent Architecture

https://int21.ai/insights/muse-spark-1-1-enterprise-agent-architecture/
2•antinucleon•19m ago•0 comments

Make Europe Cool Again

https://jacek.migdal.pl/2026/07/07/make-europe-cool-again
3•jakozaur•20m ago•0 comments

AI Cameras on Garbage Trucks to Scan Properties for Code Violations

https://www.gadgetreview.com/cape-coral-eyes-ai-cameras-on-garbage-trucks-to-scan-properties-for-...
3•deadonarrival•23m ago•0 comments

Show HN: ChessFlex – iPhone chess with no server, no accounts (P2P via QR)

https://apps.apple.com/us/app/chessflex/id6761064938
2•yrotsih•24m ago•0 comments

Practical Algorithms for Incremental Software Development Environments [pdf]

https://www2.eecs.berkeley.edu/Pubs/TechRpts/1997/Archive/CSD-97-946.pdf
3•chiply•26m ago•1 comments

Show HN: Lever – replace agent token transport with deterministic hooks

https://github.com/Clear-Sights/Lever
1•Present_Flow•26m ago•0 comments

No, Qwen 27B isn't the sweet spot

https://barajas.blog/posts/no-qwen-27b-isnt-enough/
3•bearjaws•27m ago•0 comments

Honestly – out of pure curiosity: Custom SaaS built with AI in under 30 minutes

https://liqlab.ai
1•reskin_design•27m ago•0 comments