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Journal of Financial Economics Vol. 164 2025

Strategic insider trading and its consequences for outsiders: Evidence from the eighteenth century

Mathijs Cosemans1; Rik Frehen2

1 Erasmus University Rotterdam · 2 Tilburg University

open access

Abstract

This paper uses hand-collected historical data to provide empirical evidence on the strategic trading behavior of insiders and its consequences for outsiders. Specifically, we collect all equity trades of all insiders and outsiders in an era without legal restrictions on insider trading and a market where trading is non-anonymous. We find that access to private information creates a significant gap between the post-trade returns of insiders and outsiders. Consistent with theory, insiders capitalize on their information advantage by hiding their identity and timing their trades. Both experienced and inexperienced outsiders face expected losses due to this strategic insider trading.

DOI
10.1016/j.jfineco.2024.103974
Volume
164
Pages
103974
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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