US equity markets recovered from losses earlier in the session to settle mostly higher and cap a strong weekly and monthly performance - Dow slipped -18-points or -0.07%, recovering from a slide earlier in the session of as much as -368-points. Pfizer Inc fell -7% in after-hours trading after the company reported that a study of a potential breast-cancer treatment was halted because it was unlikely to achieve its intended change in survival rates. The broader S&P500 added +0.48% . NASDAQ +1.29%, with chipmakers leading the gains (Nvidia Corp up +4.6%). Moderna Inc jumped +10.% after announcing late in the session that the latest study of its potential COVID-19 vaccine has begun. The first participants in each age range have been dosed with its vaccine candidate, known as mRNA-1273, and will receive another dose 28 days later before being followed for 12 months to determine efficacy.