FOR EVERYDAY INVESTORS
Stock news that knows why you own it.
Tell us the reason you own each stock. Every morning, our AI reads the news and emails you a short brief — only the stories that actually affect your reasons, without the noise.
Invite-only beta · 20 thoughtful investors
The problem with stock news
You get dozens of articles a day, and almost none of them know why you own the stock.
When your stock drops 10%, the hardest question is the simplest one: did my reason for buying break — or is this just noise? Most people guess.
Compounder answers both. Write down why you own each stock, and every morning our AI sends you only the news that touches your reasons — and whether your logic still holds.
How it works
01Write why you own it
Add up to 3 stocks and write down your reason for owning each one — like “I own TSLA because full-self-driving is about to work.”
02Let the signal find you
Every night we read the day's news and ask one question: is this material to your reason for owning it?
03Know why it matters
Material updates land in your inbox each morning — with a plain-English explanation of what changed and why it matters to your reason for owning it.
This is what the brief looks like
A real brief from a real morning — every story tied to the reason for owning the stock, ranked by how much it matters.
What it's not
Not another ticker alert firehose. Not analyst price targets. Not financial advice. Just a check on whether your original reason for buying still holds.