Journal article

A framework for online investment decisions


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Publication Details

Author list: Paskaramoorthy B. Andrew , Gebbie J. Tim , Zyl van L. Terence

Publisher: Investment Analysts Society of South Africa. Email: InvestmentAnalystsJournal@gmail.com

Publication year: 2020

Journal: Investment Analysts Journal

Total number of pages: 17

ISSN: 1029-3523

eISSN: 2077-0227

URL: https://doi.org/10.1080/10293523.2020.1806460


Abstract

The artificial segmentation of the investment management process into silos of human operators can restrict silos from collectively and adaptively pursuing a unified investment goal. In this article, we argue that the investment process can be accelerated and be made more cohesive by replacing batch processing for component tasks of the investment process with online processing. We propose an integrated and online framework for investment workflows, where components produce outputs that are automatically and sequentially updated as new data arrives. The workflow can be further enhanced to refine signal generation and asset class evolution and definitions. Our results demonstrate that we can use this framework in conjunction with resampling methods to optimise component decisions with direct reference to investment objectives while making clear the extent of backtest overfitting. We consider such an online update framework to be a crucial step towards developing intelligent portfolio selection algorithms that integrate financial theory, investor views, and data analysis with process-level learning.


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Last updated on 2020-13-10 at 16:18