This study examines the impact of corporate news announcements released overnight on price discovery during the pre-opening period in the Australian Securities Exchange. Our results suggest that the presence of these announcements increases the efficiency of indicative opening prices and that the intensity of these announcements significantly influences the aggressiveness of pre-opening orders. Using earnings announcements to compare the speed of price adjustments in response to overnight and daytime information of a homogeneous type, we find that prices respond immediately to overnight news upon the commencement of trading, whereas adjustments based on trading-hours news tend not to be instantaneous. Overall, our evidence highlights the important role of the pre-opening period in price discovery and the prospect of further enhancing this role by timing the release of public information to occur during non-trading hours.

We examine the impact of the media on firms’ leverage adjustments. Using a comprehensive sample of global news across 33 countries, we find that greater news coverage and more positive news sentiment are associated with greater leverage adjustment speeds. This finding is consistent with the argument that media coverage and content help lower the cost of firms’ adjustment toward target leverage. We further find evidence supporting two mechanisms through which the news media affects leverage adjustments: information dissemination and monitoring. Overall, our results are consistent with the dynamic trade-off theory of capital structure.