The article introduces a new way to predict changes in financial markets by looking at how volatility varies over time. Instead of just focusing on individual values, the researchers consider how different values relate to each other. By using a special mathematical process called the Wishart process, they were able to make more accurate predictions about how different assets will perform. When tested on real data, their method outperformed other common models used in finance. This means that their approach could help investors make better decisions about where to put their money.