no code implementations • 12 Mar 2024 • Baptiste Lefort, Eric Benhamou, Jean-Jacques Ohana, David Saltiel, Beatrice Guez, Thomas Jacquot
This paper introduces a new risk-on risk-off strategy for the stock market, which combines a financial stress indicator with a sentiment analysis done by ChatGPT reading and interpreting Bloomberg daily market summaries.
no code implementations • 9 Jan 2024 • Baptiste Lefort, Eric Benhamou, Jean-Jacques Ohana, David Saltiel, Beatrice Guez, Damien Challet
We used a dataset of daily Bloomberg Financial Market Summaries from 2010 to 2023, reposted on large financial media, to determine how global news headlines may affect stock market movements using ChatGPT and a two-stage prompt approach.
no code implementations • 15 Oct 2019 • Eric Benhamou, Beatrice Guez, Nicolas Paris1
We compute Omega ratio for the normal distribution and show that under some distribution symmetry assumptions, the Omega ratio is oversold as it does not provide any additional information compared to Sharpe ratio.
no code implementations • 2 Apr 2019 • Eric Benhamou, David Saltiel, Beatrice Guez, Nicolas Paris
We prove that the expected covariance should be lower in the normal Wishart prior model because of the convexity of the inverse.