drugmaker Pfizer Inc had halved its COVID-19 vaccine production target for 2020.Trading across other emerging Asian stock markets remained mixed as sentiment around downbeat vaccine headlines was partly offset by hopes that a U.S. coronavirus aid plan would be pushed through Congress. Stocks in Indonesia and Malaysia fell 0.4 percent, while South Korea's KOSPI climbed 1.6 percent to a record as shares of chipmakers continued to strengthen.Manila shares dropped 0.
Raul Ruiz, head of research at RCBC Securities, said vaccine headlines were heavily affecting sentiment as investors had turned their attention to the speed and magnitude of recovery in 2021."In this regard, news that the distribution of Pfizer's vaccine would be constrained by supply chain issues probably has more bearing on the market," Ruiz said, also attributing the fall to profit-taking after a 15 percent rally in stocks since October.