About ContraTurtle

Modelled after Munger's sit-on-your-ass-and-do-nothing-long-term investing style.

I’m a Senior Software Solutions Engineer at one of the most AI-centric North American technology companies (Keeping this a mystery for now), with over 8 years of experience working with enterprise customers around the world. You can find me posting on X (https://x.com/ContraTurtleX).

A few years ago, I realized that my boots-on-the-ground vantage point allows me to observe genuine trends long before they reach headlines or analyst reports, and I naturally evolved into a tech investor grounded in firsthand insight.

In spite of the 2022 market crash, my portfolio has significantly outperformed the S&P500 without holding any semiconductor stocks. You can refer to my latest portfolio performance here.

What Makes My Investment Perspective Unique

Field-tested view of technology adoption - I’m regularly in the trenches solving customer software problems. This gives me a special advantage over analysts (who only have access to earnings calls / 3rd party media reports) when analyzing tech businesses. I see how products perform in practice, not just how they’re described by the news.
Global Ecosystem Exposure - My work often brings me to China, giving me close-up visibility into both U.S. and Chinese tech ecosystems. I’ve also worked in European and Southeast Asian companies, which sharpens my global investment lens. Despite this, the majority of my portfolio remains USA-centric. After years spent across multiple markets, I’ve arrived at the same conclusion as Warren Buffett: Trust in American ingenuity. (I’m not American, so you can discount patriotic bias)
Concentrated, high-conviction investing style - My approach resembles investors like Chris Hohn, Charlie Munger, Nick Sleep, and Li Lu: a small number of exceptional businesses within my circle of competence. I typically hold fewer than 10 high-conviction technology stocks, practice GARP (Growth At Reasonable Prices), and leave positions largely untouched even through extreme volatility. This style isn’t for everyone, nor is anything on this site financial advice; it’s simply a transparent journal of my investment thought process and actions.