For serious DIY investors - by a former quant and fund manager

Would your portfolio survive a tough decade?Portfolios & strategies designed for an uncertain future.

The professional investor's toolkit — finally adapted for serious DIY investors.

Claim your founding spot7 founding member spots left
Stéphane Renevier

Stéphane Renevier, CFALinkedIn

Former multi-asset fund manager · building InvestLab in public

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The problem

You've put more thought into investing than most people you know — yet you're still not sure your portfolio could survive a tough decade. Every time you try to go beyond the basics, you hit a wall:

You know a passive stock portfolio may be riskier than it looks — but aren't sure what to do instead.

You've heard of all-weather investing, trend following, and momentum — but don't know how to implement them.

You don't have the time, tools, or expertise to test what really works.

You're drowning in opinions, but starving for evidence.

“How can I actually build something like this?”

Chart showing the growth of $10,000 invested in a resilient portfolio from 1992 to 2024, on a log scale

InvestLab's Solution

Everything you need to build a portfolio that can survive a tough decade.

The Right

Research

Cut through the noise and focus on what matters: the playbooks, principles, and lessons behind the world's best investors and investment strategies.

Understand what works, when it works, and whether it's right for you.

The Right

Strategies

Ready-to-run portfolios and strategies designed to navigate different market environments — with live allocations, clear rules, and transparent performance.

Put professional investing principles into practice in minutes, not hours.

The Right

Tools

Backtest, stress-test, and monitor portfolios using the same quantitative techniques professionals rely on — without writing a single line of code.

Build conviction with evidence, not hope.

The Right

Guidance

Learn alongside a community of thoughtful investors and get direct access to a former institutional portfolio manager who ran all-weather and global macro strategies.

Learn faster, implement sooner, and avoid costly mistakes.

The right research + the right strategies + the right tools + the right guidance = better decisions and better portfolios.

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

All-WeatherBalanced AllocationRisk-Parity ProTrend-FollowingRelative MomentumDual Momentum
Live strategies dashboard showing model portfolios and tactical strategies with performance metrics

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

PerformanceAttributionRisk AnalysisPortfolio AlertsTrade Recommendations
Strategy deep dive showing All-Weather Pro performance metrics and chart
Strategy risk analysis showing contribution breakdowns and drawdown charts

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

BacktestingSimulationStress-TestingStrategy BuilderPortfolio Combiner
Backtest configuration panel with strategy and asset selection
Backtest performance results with charts and metrics comparison

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

Cover page of the Lean All-Weather Strategy Deep Dive #1 — a resilient all-season core portfolio using four ETFs only, by Stéphane Renevier, CFA
Research deep dive sample showing 35 years of track record, growth of $10,000 chart, and a full performance summary versus benchmark

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

£49/month

founding rate, locked in forever

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.

1Phase

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.

2Phase

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.

3Phase

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.

4Phase

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.