Patrick O'Shaughnessy

@patrick_oshag

About the author

Patrick O'Shaughnessy is founder and CEO of Colossus, the investing-focused media company he started in 2020, and of the venture firm Positive Sum. He hosts the Invest Like the Best podcast, which he launched in 2016. He was earlier a portfolio manager at O'Shaughnessy Asset Management, the quantitative firm founded by James O'Shaughnessy and later acquired by Franklin Templeton.

Memos, letters and research

All research

Invest Like the Best Colossus

Patrick O'Shaughnessy's long-form interviews with top investors and operators, including Howard Marks, Michael Mauboussin and Aswath Damodaran, about how they think. One of the best free archives of investor process.

Podcast Intermediate Weekly since September 2016