About

Welcome!
I"m Adrian Tout…
Whilst I"m not a fan of long-winded bios – it"s only fair you should know a little more about me (and why this blog).
My educational background is in fields of computing science and engineering – which found me working at Google the past ~10 years in the fields of machine learning, computer vision and artificial intelligence.
Since departing Google in 2025 – I now focus my time on investing.
The blog is now in its 14th year (2025)
It"s written to help you make better financial decisions. And to that end, I think author Peter Bevelin, put it best:
"I don"t want to be a great problem solver. I want to avoid problems—prevent them from happening and doing it right from the beginning."
This newsletter is written out of a genuine love for all things learning, making better decisions, business, analysis, investment, psychology, economics and free markets.
I"ve been at this game of investing for just over 27 years. Needless to say, I didn"t get it right from the beginning (very few do).
At the "bulletproof" age of around 30 – I lost ~$200K during the dot.com crash. For someone who was very early into their investing career – it was a soul crushing amount of money. And whilst I did not recognise it at the time – the loss would prove to be enormously helpful.
I learned important (life-long) mistakes early in my investing career.
I fondly call them my "tuition fees". And as I navigated my way through the crisis of 2008/09 – and various downturns over the past ten years – I would continue to add more (investing) arrows to my quiver.
Over the past 9 years – my CAGR is 14.2% (vs the S&P 500 13.3%). Last year (2025) – my return was just under 16% (inline with the broader index).
I attribute this performance to five key things:
- eliminating any emotions and biases from my decision making;
- targeting high quality companies with strong (long term) returns on capital and free cash flow;
- always being far more concerned about what I could potentially lose vs what I could gain;
- decreasing my exposure when I feel valuations are excessive; and
- increasing my exposure when valuations are fair and reasonable
Sounds simple but it requires a lot of work and a contrarian mindset.
Three primary objectives I hope to offer you with this letter:
- Sharing the mental models which have worked for when making financial decisions;
- Focusing on long-term trends whilst eliminating short-term noise and misinformation; and
- Posing quality questions to help us challenge any widely held (investing) assumptions
Probabilities suggest your own interpretation of data will often not turn out the way we expect.
But that"s more than fine…
Successful investing requires accepting we get things wrong along the way. It"s how we learn and improve.
I hope you enjoy what you read…
