Abstract
This study is the first to provide systematic evidence regarding investor behaviour in Initial Coin Offerings (ICOs), their investment patterns and their role in the success of campaigns. Using hand-collected data on 472 public token sales over the period of 2013-2017, we advance the ICO literature by demonstrating that some contributors often invest in more than one campaign, and such serial investors contribute earlier. However, they are not more informed and fail to pick better-quality ICOs. Only large serial investors invest more in campaigns that raise more funds, attract more contributors, are more likely to reach their hard caps, and distribute tokens that are listed on crypto exchange. Our findings raise the question of whether regulatory or industry self-regulation agreements on information provision measures are needed to protect smaller retail ICO investors that exhibit naïve reinforcement learning behaviour.