Search Results for author: Beatrice Guez

Found 4 papers, 0 papers with code

Stress index strategy enhanced with financial news sentiment analysis for the equity markets

no code implementations12 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.

Sentiment Analysis

Can ChatGPT Compute Trustworthy Sentiment Scores from Bloomberg Market Wraps?

no code implementations9 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.

Omega and Sharpe ratio

no code implementations15 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.

BCMA-ES II: revisiting Bayesian CMA-ES

no code implementations2 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.

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