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AI advisor for retail investors

Gaus is an AI investment advisor for retail investors. Founded by Bruno Koba (Nubank, monashees) and Daniel Tulha (Stripe, Robinhood), Gaus gives every active investor an AI investment advisor working around the clock to surface their next great investment. We’re backed by YC (S25). Retail investors now account for 25% of all U.S. trading volume, nearly double from 2012. But over 56% still say they don’t feel confident in their investment decisions. Gaus fixes that. Our AI agents uncover opportunities, decode emerging trends, and deliver analysis tailored to you. Instead of drowning in noise, investors gain a clear edge, shifting from guesswork to confident decision-making.
Active Founders
Bruno Koba
Bruno Koba
Founder
CEO @ Gaus. Building an AI advisor for retail investors. Stanford GSB and ex-Nubank, monashees.
Daniel Tulha Hochstetler
Daniel Tulha Hochstetler
Founder
CTO @ Gaus, building Cursor for individual investors. Previously at Stripe, Robinhood & Amazon.
Company Launches
Gaus: Your Personal AI Investment Analyst
See original launch post

Hey 👋, we’re Bruno and Daniel, the founders of Gaus.

TL;DR:

Gaus is your personal AI investment analyst. It gives you the same market tracking, deep research, and real-time alerts that institutional investors rely on, now built for your portfolio.

The problem

Retail investors are fundamentally disadvantaged compared to professionals.

Institutional investors have teams of analysts tracking markets in real time, digging into data, and flagging opportunities before anyone else. Retail investors, meanwhile, have to piece together brokerages, news sites, and forums.

These tools haven’t changed in 15 years. In the U.S., 61% of adults — over 160 million people — own stocks, yet more than half say they don’t feel confident in their investment decisions.

We’re building Gaus to level the playing field.

https://youtu.be/kFdGUuZ86uA?si=p6NZpPT6hkgxbKgi

How does it work?

Gaus is your personal AI investment analyst. It monitors markets 24/7, filters out noise, and delivers only the insights that matter for your portfolio. That could mean:

  • Spot catalysts before they hit the mainstream: e.g., flag unusual insider activity on a stock you own hours before it trends.
  • Deliver deep, tailored research: pull together data, filings, and expert commentary into concise, decision-ready briefs on any company or theme you care about.
  • Test and validate your ideas: run “what if” scenarios and uncover supporting or contradicting market data before you act.

It’s like having a Wall Street-grade analyst in your pocket — one that never sleeps, never misses a headline, and tailors everything to your holdings.

Who’s it for?

Any active investor who wants to move from reactive guesswork to deliberate, confident decision-making.

Backstory

We’re two Brazilian fintech builders from São Paulo.

  • Bruno was a data scientist at Nubank, building machine learning models that impacted millions, and later a fintech investor at Monashees.
  • Daniel was a software engineer at Stripe, Robinhood, and Amazon, creating production-ready AI agents and scaling systems during meme stock booms and volatile markets.

We’ve seen both sides — the institutional edge and the retail struggle — and we’re building Gaus to close that gap.

Ask

If you invest, try Gaus and tell us what you think. Sign up at joingaus.com.

You can reach us directly at founders@joingaus.com — we’d love your feedback.

Thanks for your support,

Bruno + Daniel 📈

YC Photos
Gaus
Founded:2025
Batch:Summer 2025
Team Size:2
Status:
Active
Location:San Francisco
Primary Partner:Jon Xu