Built for serious DIY investors - by a former quant and portfolio manager
Most portfolios are built for the last decade.
Is yours ready for the next one?
Model portfolios designed for resilience, not prediction. Tactical strategies that adapt when conditions shift. Professional-grade tools to build, test, and track it all.
The Problem
The world is changing. And most investors are still choosing between two risky defaults.
Make a concentrated bet on the future
Pick the themes, sectors and stocks they think will win.
Ignore it and assume equities will win anyway
Buy the S&P or VT. Keep it simple. Hope it works out.
One asks you to predict the future.
The other asks you to trust the past.
Both could work.
Both could also fail spectacularly.
InvestLab's Solution
You don't need to guess harder or hope longer.
You don't need more information or more investment ideas.
You need a core portfolio built for more than just bull markets, tactical strategies that adapt when conditions shift,
and rules that replace guesswork with discipline.
That's the first half. The second is the conviction to stick with it. That only comes from doing the work. Understand it deeply. Build it, test it, break it - with real tools and real data.
Most investors obsess over the 10% that feels exciting.
InvestLab helps you get the 90% that matters most right.
What InvestLab gives you
Live portfolios & strategies
Core portfolios and tactical strategies inspired by the best practitioners and backed by decades of evidence - with live allocations, transparent performance, and clear rebalancing rules.
Fewer strategies, higher conviction. Every one designed for robustness, not excitement - and every one showing where it struggles, not just where it shines.
Example strategies
Real-time strategy analysis
See what's actually driving each strategy: performance attribution, risk decomposition, rebalancing signals, and regime context. The kind of analysis that's normally locked inside institutional platforms.
Example analytics
Quant lab
Take any strategy and test it against decades of real data - stress-test it, break it apart, and see where it fails. Modify one to fit your goals, or build your own from scratch.
The point isn't to prove a strategy works. It's to understand it deeply enough to decide if you can stick with it.
Example tools
Institutional-quality research
The investing world is drowning in content. Most of it is noise. InvestLab focuses on what actually matters for your decisions - the real trade-offs, where each strategy breaks, and what's happening right now that affects how your portfolio behaves.
Every topic covers the process (how it works), the practical (how to implement it), and the behavioural (how to stick with it).
Written Deep Dives
Research-backed articles
Live Webinars
Interactive sessions
Workshops
Hands-on learning
Community
Learn with others
Become a Founding Member
10 founding members. We grow together.
I'm Stéphane Renevier, the founder and portfolio manager behind InvestLab. The strategies here come from a decade of running them - first with institutional capital (risk parity at Schroders, an $800M macro book at Wells Fargo), then with my own. The research and process aren't new. Making them accessible to serious individual investors is.
As a founding member, you get full platform access from day one: core portfolios, tactical strategies, and every tool to test, adapt, and build your own.
Then the part I can't offer at scale - and won't offer again:
Private community
A closed Slack group of 10 serious investors with direct access to me. Share your portfolio, ask anything, learn from each other.
Weekly deep dives
Live sessions where we build together, or written deep dives into strategies and advanced topics. Every week, something new.
1-on-1 onboarding
A dedicated session to understand how you invest, what you're building, and how to get the most out of InvestLab.
Founding Membership
founding rate, locked in forever
6 months minimum · Starts June · 10 spots
After launch, the founding membership disappears. What remains is the platform - no community, no direct access, no weekly sessions. At a higher price.
This is the only time I'll offer this.
This is for you if...
- You're stuck between too many ideas and no real portfolio decision
- You want a process that holds up - not just a portfolio that looks good in a backtest
- You care about robustness more than excitement
- You're ready to do the work and come out with something you actually trust
This is not for you if...
- You want hot tips, fast trades, or guaranteed outcomes
- You want sophistication without doing the work
- You want answers without understanding the trade-offs
Why I'm Building InvestLab
Most retail investors have the same goal: build wealth over the long term. The investing industry should help them get there. Instead, it sells noise, excitement, and unrealistic expectations - and leaves people with no process for when things go wrong.
I know because I've been on every side of this.
The obsessed retail investor
Reading everything I could find, building momentum and value strategies at 2am. I made every mistake you can make - and learned what it feels like to have no process, no tools, and no one to tell you what you're getting wrong.
A decade managing real money
Risk parity at Schroders. Alternative risk premia and tactical trading strategies at Wells Fargo. I learned how to build strategies from scratch, manage them under pressure, and how much of successful investing is process and discipline - not brilliance.
Working alongside individual investors
At Finimize, writing research for hundreds of thousands of individual investors. But I kept hitting the same limit: you can explain a strategy perfectly, and people still have no way to test it, build it, or run it live. That's the gap I couldn't stop thinking about.
Building InvestLab
My mission is simple: help retail investors actually reach their long-term goals. Not by telling them what to buy - but by giving them the guidance, the frameworks, and the tools to build a portfolio they understand and trust.
I want people to learn by doing - test strategies, challenge assumptions, make better decisions - and become better investors in the process, not just followers of someone else's picks.
I haven't figured it all out, and I'll always be upfront about the blind spots and weaknesses in what I propose. But I've spent a decade getting closer, I'm investing my own money through these same strategies, and I'm obsessed with getting this right.
InvestLab exists to close two gaps:
Gap 1
Retail → Professional-Grade
Research, frameworks, and tools at a level typically only available inside institutions - built so retail investors can actually use them.
Gap 2
Theory → Practice
Don't just understand momentum, risk parity, or regime-aware allocation in the abstract. Build it, test it, run it live - with real tools and real stakes. A learn-by-doing approach.