Forecasting multinomial stock returns using machine learning methods

In this paper, the daily returns of the S&P 500 stock market index are predicted using a variety of different machine learning methods. We propose a new multinomial classification approach to forecasting stock returns. The multinomial approach can isolate the noisy fluctuation around zero return...

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Main Author: Lauri Nevasalmi
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2020-11-01
Series:Journal of Finance and Data Science
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405918820300143
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spelling doaj-7eaa5a58acde4e068a909f1c9ebbecfb2021-04-02T19:14:23ZengKeAi Communications Co., Ltd.Journal of Finance and Data Science2405-91882020-11-01686106Forecasting multinomial stock returns using machine learning methodsLauri Nevasalmi0Department of Economics, Turku School of Economics, University of Turku, FI-20014, Finland; Department of Mathematics and Statistics, University of Turku, FI-20014, FinlandIn this paper, the daily returns of the S&P 500 stock market index are predicted using a variety of different machine learning methods. We propose a new multinomial classification approach to forecasting stock returns. The multinomial approach can isolate the noisy fluctuation around zero return and allows us to focus on predicting the more informative large absolute returns. Our in-sample and out-of-sample forecasting results indicate significant return predictability from a statistical point of view. Moreover, all the machine learning methods considered outperform the benchmark buy-and-hold strategy in a real-life trading simulation. The gradient boosting machine is the top-performer in terms of both the statistical and economic evaluation criteria.http://www.sciencedirect.com/science/article/pii/S2405918820300143S&P 500Market timingMachine learningGradient boosting
collection DOAJ
language English
format Article
sources DOAJ
author Lauri Nevasalmi
spellingShingle Lauri Nevasalmi
Forecasting multinomial stock returns using machine learning methods
Journal of Finance and Data Science
S&P 500
Market timing
Machine learning
Gradient boosting
author_facet Lauri Nevasalmi
author_sort Lauri Nevasalmi
title Forecasting multinomial stock returns using machine learning methods
title_short Forecasting multinomial stock returns using machine learning methods
title_full Forecasting multinomial stock returns using machine learning methods
title_fullStr Forecasting multinomial stock returns using machine learning methods
title_full_unstemmed Forecasting multinomial stock returns using machine learning methods
title_sort forecasting multinomial stock returns using machine learning methods
publisher KeAi Communications Co., Ltd.
series Journal of Finance and Data Science
issn 2405-9188
publishDate 2020-11-01
description In this paper, the daily returns of the S&P 500 stock market index are predicted using a variety of different machine learning methods. We propose a new multinomial classification approach to forecasting stock returns. The multinomial approach can isolate the noisy fluctuation around zero return and allows us to focus on predicting the more informative large absolute returns. Our in-sample and out-of-sample forecasting results indicate significant return predictability from a statistical point of view. Moreover, all the machine learning methods considered outperform the benchmark buy-and-hold strategy in a real-life trading simulation. The gradient boosting machine is the top-performer in terms of both the statistical and economic evaluation criteria.
topic S&P 500
Market timing
Machine learning
Gradient boosting
url http://www.sciencedirect.com/science/article/pii/S2405918820300143
work_keys_str_mv AT laurinevasalmi forecastingmultinomialstockreturnsusingmachinelearningmethods
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