Signaling sustainability: Differential reaction of the stock market following the announcement of sustainability-linked bonds

This paper explores the suitability of sustainability-linked bonds (SLBs) for signaling sustainability intentions by analyzing the market reaction following their announcement and issuance. We find no significant share price reaction for SLBs targeting greenhouse gas emission reduction objectives. The lack of significant market reaction also applies to SLB-independent emission-reduction announcements. In contrast, for other types of SLB goals, such as those linked to sustainability ratings, renewable energy, or energy efficiency, we observe a significant positive market reaction. We argue that climate transition activities of companies are already priced by the market, while other sustainability goals are positively received.