抄録
News has great impacts on asset prices in the financial markets. Many attempts have been reported
to ascertain how news influences stock prices. However, the limitations in the number of available data sets usually
become the hurdle for the model accuracy. In this study, Reuter's news texts were classified based on each
return through LSTM models. As a result of the analysis, we found the prediction accuracy could be improved
by using texts generated by GPT-2. Further examination of the classification model will be planned.