| Jaimungal | Sebastian | University of Toronto | Canada |
| James | Jessica | Senior Quantitative Researcher | Commerzbank |
| Jensen | Kasper | senior director and portfolio manager | ATP |
| Jentzen | Arnulf | Professor | The Chinese University of Hong Kong |
| John D. Kelleher - Academic Leader | Prof. | Professor | Author of Fundamentals of Machine Learning for Predictive Data Analytics |
| Joiner | Alex | Chief Economist | IFM Investors |
| Jolly - Apps Partnership | Charlene | ||
| Jones | Jeff | High Yield Credit Trader and Head of Trading for North America | Aviva Investors |
| Jones | Jack | Chairman | The FAIR Institute |
| Joniaux | Rodérick | European Government Bonds Product Manager | Tradeweb |
| Jordan | Michael | Distinguished Professor | University of California - Berkeley |
| Jordan | Carmel | CEO | Mercer Investment Management |
| Joshi - Senior Manager | Abhinav | Product Marketing | Red Hat |
| Jour-Schroder | Alexandra | Deputy Director General | European Commission |
| Kaneva | Natasha | Manager | J.P. Morgan |
| Kaster | Troy | VP of AI | Penguin Computing |
| Kaul | Karishma | Head of Systematic Fixed Income Strategies | Fidelity Asset Management |
| Keir - head of systematic equities | Murray | global portfolio manager | Aware Super |
| Kelliher | Chris | Quantitative Researcher and Portfolio Manager | Fidelity |
| Kerigan - Head of Innovation | Nick | SWIFT |
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