The U.S dollar index gained 0.6% on the day to settle at 90.77.
The U.S stock market is expected to close much earlier, as stock traders and global investors observe Christmas.
At the close of the New Stock Exchange the S&P 500 index climbed 0.29%, Dow Jones Industrial Average gained 0.37%.
The Dow jumped 11.8% in November, posting its best one-month gain since January 1987. The S&P 500 and Nasdaq Composite surged by 10.8% and 11.8%, respectively
Pfizer Inc could have a COVID-19 vaccine available in the world's largest economy by the end of 2020.
Top tech brands drifted lower, as investors fretted over uncertainty around the COVID-19 pandemic.
The US dollar is stronger this morning on the back of a marked drop in risk appetite in European and US markets.
Futures contracts on the S&P 500 Index plunged by 1.4% at the time this report.
Apple Inc, the most valuable listed company, plunged in value by 3.17% to close at $106.84.
The first time since March, both indexes had a drop for the fourth time in five days.
