Dow loses momentum and S&P 500 ends lower in final hour of trading on Thursday as Pfizer announced to reduce COVID-19 vaccine deployment target

U.S. stocks ended for the most part higher, but lost momentum in the final hour of Thursday trading after the Wall Street Journal reported that Pfizer Inc. PFE,
-1.74%
plans to ship half of the COVID vaccines originally slated for this year due to supply chain issues, but still plans to deploy more than a billion doses in 2021. The Dow Jones Industrial Average
+ 0.28%
closed 0.3% higher at around 29,969, but off its best Thursday at 30,110.88, pushing it below a closing high. The S&P 500 SPX index,
-0.06%
finished 0.1% lower at 3667, after its intraday high at 3682.73, while the Nasdaq Composite Index [: COMP] rose 0.2% to 12,377, but a far cry from its peak of 12,439.02. Markets had soared on Thursday U.S. stock indexes took a head start in the session after U.S. Senate Majority Leader Mitch McConnell said it was possible to reach a compromise on a another coronavirus budget package, as long as Democrats moved towards Republican positions, offering hope for progress towards a fiscal compact for bullish investors.