Stock split announcements linked to abnormal returns and bid-ask spread impact.
The article examines the impact of stock splits on companies listed on the Indonesia Stock Exchange from 2013 to 2017. The researchers analyzed abnormal returns and bid-ask spreads before and after stock split announcements to test market efficiency. They found that stock splits can send positive signals about a company's future, but it is important to verify if these signals are accurate. The study used daily stock data and company profiles to assess the effects of stock splits on market behavior.