Investing with a high-conviction manager may sound prudent. Watering down exposure to a manager’s best ideas seems like it would only lead to mediocre performance, making it harder to recoup active ...

Graph neural networks (GNNs) are a relatively recent development in the field of machine learning. Like traditional graphs, a core principle of GNNs is that they model the dependencies and ...

This paper investigates the relation between shareholders' portfolio concentration and firm performance. Using data on more than 1.3 million unique shareholders, we create an index that measures how ...

There was a recent discussion about whether a 25%+ allocation in Apple was too high for a 22-year old investor. It is very important to take into account baseline future contributions and consider ...