Aerospace competition, investor attention, and stock return comovement

Fierce aerospace competition among global superpowers has resulted in strong public attention on satellite launch events in the U.S. Given limited attentional resources, U.S. investors pay more attention to market-level shocks than to firm-specific shocks, making stock returns comove more with the market on satellite launch days than on other days. We find that the effect is significantly stronger for military-related satellite launches, launches before the dissolution of the former Soviet Union, and international satellite launches by other competitors, highlighting a greater concern for national security. A trading strategy that exploits the potential satellite-induced mispricing yields an annualized abnormal risk-adjusted return of up to 17% within the three-day window around launch date. Our results are robust to a battery of robustness analyses that consider the different characteristics of satellite launches, the exclusion of aerospace firms, and stock return comovement with industries.</p

When Hollywood movies steal the show, stock returns dance more with the market!

Hollywood film releases attract U.S. investors' attention away from the financial markets. This is reflected in lower trading activity and abnormal Google search volume for firm names between film and non-film days. The resultant investor inattention leads to a significantly higher stock return comovement with the market on film release days. Interestingly, films with A-list star actors and blockbuster movies exhibit a more pronounced impact than their counterparts. Finally, we show that being aware of this Hollywood film-induced mispricing can yield an annualized abnormal risk-adjusted return of up to 13.5% within five days around the release events.</p