Welcome to Quant Investing
I built Quant Investing to invest my own money. I use it every day. If I would not use it myself, I would not sell it. That is the promise the business runs on.
My name is Tim du Toit. I am 59 and have been investing in markets since 1987. I studied finance (BCom, BCom Hons, MBA Finance, Indiana University) and spent 16 years in banking and fund management in South Africa and Germany before leaving in 2012 to build the screener and run my own portfolio.
What you get
The stock screener. 22,000+ companies across 30+ countries. 110+ ratios and indicators. 22+ saved strategies. Backtesting. Built for investors who want depth, not hand-holding. Every filter is there because it works. Nothing is in it to win a feature-comparison page.
Quant Value newsletter (small cap). 16-year track record. 90% of the returns in 10% of the time. 30 minutes a month. Up to 6 ideas a month from Europe, Asia, and North America. Capped at 400 subscribers to protect small-cap liquidity.
Shareholder Yield Letter (large cap). Live since May 2023. Based on Shareholder Yield + O'Shaughnessy's Market Leaders universe. 80-year backtest: 97% probability of outperformance over 10 years.
Up to 3 new ideas a month from a universe of large, profitable companies. Same 90% of the returns in 10% of the time. Because the companies are very large, liquidity is not a constraint, and the subscriber base is not capped.
This makes the Shareholder Yield Letter a strong fit for tax-free retirement accounts where broker investment options are often limited.
Six promises the business keeps
A brand is a promise. Trust is whether the promise gets kept. Here are the six we honour every day, in public.
• Every product, Tim uses daily with his own money. The strategies in the newsletters are the strategies Tim runs in his own portfolio. Tim is invested in many newsletter ideas but not all of them, for the reasons documented in our "why I am not invested in every idea" FAQ. Tim eats his own cooking.
• Losses get published alongside gains, in the same email. Track records show every idea, not the highlights.
• Every position carries a 20% trailing stop. Only 2% of Quant Value ideas have ever lost more than 30%.
• 90% of the returns in 10% of the time. 30 minutes a month.
• No manufactured urgency, no countdown timers, no fake scarcity, no paid recommendations, no predictions sold as analysis.
• 30-day full refund, no questions asked. Pro-rata after that. Upgrades refund the unused portion of the existing subscription automatically, with no double-charge.
“What if you stop?”
A fair question for any one-person-led business. I am 59, with no plans to retire. I built the screener to invest my own money and use it daily. My role models, Warren Buffett and Charlie Munger, kept investing into their nineties.
As long as I am investing, the tools are running.
Trust, in numbers
Word of mouth is the spreading mechanism. We collect every testimonial subscribers send. Counted as of June 2026:
• 60 screener testimonials over 11 years, from 22 countries.
• 27 Quant Value testimonials over 12 years.
• Voices in the library include CFAs, a FINMA-licensed wealth manager, an ex-Morgan Stanley quant, a PhD CFA CFP CAIA, and a family-office analyst.
• We do not pay for these. They sit in a folder built up one email at a time.
What subscribers say after years
"Over the last 10 years of using it, my investment returns have beaten the market by an average of 5% per year. This is despite me not being able to totally curtail my inhibitive behavioural biases."
Fraser, UK, screener subscriber
"My Quant Value portfolio returned 21% over 12 months. My ETF core portfolio? Just 7%. One standout winner: Alzchem Group delivered 120%."
Daniel, Switzerland, Quant Value subscriber
"In just over 2 years I've made 50% based on the recommendations. I save more each month now, and plan to keep going."
Scott, Luxembourg, Quant Value subscriber
"I switched to Capital IQ for its extensive data. However, I soon missed the simplicity and time efficiency of your screener. It's clear now how valuable your user-friendly approach is."
Sam Hollanders, Belgium, screener subscriber
"When I first read your paper on Quantitative Value Investing in Europe back in 2012, I was sceptic. I'd been let down by so-called financial experts who seemed more interested in their profits than mine. Five years later, this has become the best financial decision I have ever made in my life."
Yves, Belgium, screener subscriber
"The biggest risk to my future performance is probably not to have access to such a database. The price is not cheap, but the potential investments I find are. It's a fair deal."
Jörn, Germany, screener subscriber
Add to your tools, not replace it
79% of our paid subscribers run more than one investing tool.
Most pair Quant Investing with TradingView, Stockopedia, Morningstar, Borsdata, or a broker's research platform.
We do not ask anyone to replace what's working. We sit alongside it, doing one job well: finding investment ideas you would not otherwise see, and giving you the data to test what works before committing money.
Who we serve
Experienced, self-directed investors who manage their own money. People who want rules and systems, not opinions. People who value capital protection as much as upside.
Some facts about who is already in the room. 70.8% of paid subscribers are experienced private investors. 35% have portfolios over $1 million. 6% are investment professionals.
The audience reads Haugen, O'Shaughnessy, Greenblatt, and Carlisle. We write to that audience, not down to it.
We are not for day traders we do not do crypto. We are not for customers looking for someone to manage their money for them.
If average is what you are buying, we are not for you. If a rules-based system you can trust through corrections is what you want, you are in the right place.
What we measure, and what we don't
What we don't chase. Instagram followers. LinkedIn impressions. X engagement. Newsletter list size as a vanity number.
What we track. Happy paid subscribers, retention, refund rate, the track record. The promises we keep, in numbers.
Above all: the number of investors we have helped find a system and a tool they can trust to manage their portfolio.
Everything we do serves that.
The team
Tim is the sole owner and operator of Quant Investing. The work is supported by a long-time team of contractors who handle development, databases, customer support, and operations.
How to start
Free trial of the screener:
https://www.quant-investing.com/products/screener/free-demo/.
Quant Value newsletter:
https://www.quant-investing.com/products/quant-value-newsletter/.
Shareholder Yield Letter:
https://www.quant-investing.com/products/shareholder-yield-letter/.
Your value analyst,
Tim
How Quant Investing Got Started
You can fine out more about Tim and how Quant investing got started in this in depth interview:
