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Show HN: HackerBooks – HackerTube, but for books mentioned on HN

https://hackerbooks.org
369•roansh•3h ago•108 comments

Show HN: I rebuilt my old canvas 3D library as a small WebGL 2 library – phoria2

https://kevs3d.co.uk/phoria2/
47•kevs3d•1d ago•6 comments

Show HN: OmniDiff – Opensource, super fast, content aware Git difftool, in Rust

https://github.com/ivankovic/omnidiff
49•FabCH•5h ago•24 comments

Show HN: Point your camera at a landscape to learn about its geology

https://outcrop.rocks/
100•headsupernova•3d ago•28 comments

Show HN: Offline project memory for coding agents – no API key, no vector DB

https://github.com/krapcys1-maker/adaptive-agent-memory-research
2•krapcys•1h ago•0 comments

Show HN: 2D world SIM where each creature runs a text classifier in the browser

https://id-le.com/?lab&halloween
2•nico•1h ago•1 comments

Show HN: A browser game where you navigate home to Earth using pulsars

https://lightyears-home.pages.dev/
4•gagarwal123•1h ago•0 comments

Show HN: BBRouter – Ben Eater's 8-bit computer, simulated on 3D breadboards

https://bbrouter.com/bbrouter/ben-eater-sap-1
45•creack•18h ago•10 comments

Show HN: A language model that lives in a boot sector

https://github.com/kerlenton/bootgpt
90•kerlenton•1d ago•6 comments

Show HN: Crystal Caves (1991) – C and WebAssembly port without an emulator

https://github.com/vital101/crystal-caves
2•vital101•4h ago•1 comments

Show HN: When a CEO buys their stock, does it beat the S&P 500? Check any trade

https://www.insiderprint.com/spy-mode
3•insiderprint•4h ago•1 comments

Show HN: Ghostman – A fast, keyboard-driven TUI API client and webhook inspector

https://github.com/4yk5/Ghostman
63•4yk5•2d ago•40 comments

Show HN: NES Contra (1987) port (ASM –> C and then C –> WebAssembly)

https://epoyraz.github.io/nes-contra-us/
87•tevlon•23h ago•77 comments

Show HN: To Honor Sir Patrick Stewart, Enjoy the TNG Episode Guessing Game

https://tng.episodle.com/
240•francisofascii•1d ago•76 comments

Show HN: A working Nintendo in ~1GB of Qwen weights

https://github.com/dbreunig/nesformer
291•dbreunig•2d ago•150 comments

Show HN: A USB-C LTE modem that gives my computer a phone line

https://github.com/Koppar-AI/koppar-lte-modem
59•abijahkaj•1d ago•39 comments

Show HN: I Turned DOOM into a Transformer

https://github.com/mottopanikeiku/doomformer
130•falperc•2d ago•35 comments

Show HN: Jointter – A daily word puzzle using dots and lines

https://www.jointter.com/
14•proy87•1d ago•25 comments

Show HN: Sketch Stadium – watch your agent play Pictionary

https://sketch.wakeshift.ai/games/q5ucru
35•ericlevine•2d ago•11 comments

Show HN: Auto Dismiss Mac OS "Allow <app> to find devices on local networks?"

https://github.com/johncassil/dontallow
154•johncassil•2d ago•132 comments

Show HN: Multi-Layer ASCII Art

https://typeart.mitpit.com/
4•MitPitt•13h ago•1 comments

Show HN: Create a Dumbphone on Android

https://beeswax.getflourish.org/
4•privacyishuman•14h ago•0 comments

Show HN: I rebuilt Kubernetes for ESP32 microcontrollers

https://github.com/arterialist/kube32
53•Arterialist•3d ago•21 comments

Show HN: A proof-of-concept formalization of the IRS federal tax forms

https://github.com/emmilco/us-tax-model
82•RGS1811•4d ago•13 comments

Show HN: Lasm – Write formally verified webapps in Lean for Node/serverless/edge

https://github.com/Millillion/lasm
38•lastmjs•2d ago•22 comments

Show HN: Bobby – Over Engineering PR Reviews

https://bobby.viraj.computer/
3•angrybayblade•18h ago•0 comments

Show HN: Fraktur, a DJ mixing app in the browser

https://greenvitriol.com/posts/fraktur
26•janesconference•2d ago•4 comments

Show HN: Winch – App Store optimization run by your own coding agent

https://getwinch.app/
5•ziyasal•21h ago•1 comments

Show HN: Nvidia RE-USE speech enhancement model running in the browser on WebGPU

https://re-use-demo.geronimo-labs.com
2•g58892881•21h ago•0 comments

Show HN: Fix 1.0 – Ruby tests written as RFC 2119 specifications

https://fixrb.dev/framework/release/2026/10/31/fix-1.html
2•cyrilllllll•21h ago•0 comments
Open in hackernews

Show HN: When a CEO buys their stock, does it beat the S&P 500? Check any trade

https://www.insiderprint.com/spy-mode
3•insiderprint•4h ago

Comments

insiderprint•4h ago
Most insider-trading sites give you a headline like “a director bought $2M in shares.” We never get more or better context, like :

Is this normal for this person?

Were other insiders selling?

Was the trade pre-planned?

How did similar buys actually turn out?

For example: when a CEO buys their own stock, did buys like that beat the S&P 500 afterwards?

So I built https://www.insiderprint.com/spy-mode. Press it on any insider trade and it checks:

The SEC filing itself

The filing’s fine print: pre-planned 10b5-1 trades, shares held indirectly, late filings

The insider’s own trading history

What other insiders did in the last 90 days

Similar past buys since 2020

How the stock did afterwards against the S&P 500

The evidence for and against

In my data, only about 46%” (add “over the next 90 days” at the end)

Again the idea is to give more context on each trade based on the history and patterns and how it impacted everytime on the stock value. This is not a financial advice tool :) and it is free :)

There are many interesting tools like Time Machine or same board members have made similar trades at other companies whose boards they sit on.

I’d love to hear what other checks you’d want it to run