5 things to know before the stock market opens Monday

5 things to know before the stock market opens Monday

1. Dow futures sink on omicron concerns after rough week dropped more than 1% on Monday, heading into a holiday-shortened week filled with concern about how quickly the omicron Covid variant is spreading around the world. Dow futures fell more than 400 points after the dropped nearly 1.5% on Friday and . The fell 1% on Friday and nearly 2% for the week. The dipped 0.07% on Friday and sank roughly 3% for the week. Despite the recent weakness, all three benchmarks were still way up for the year, with the Dow, S&P 500 and Nasdaq rising more than 15.5%, 23% and 17.7%, respectively, in 2021, as of Friday's close. 2. Moderna jumps after its booster appears to protect against omicron Stock futures paired deeper losses early Monday after said a third dose of its Covid vaccine significant protection against omicron. The booster dose of 50 micrograms, which has already been cleared for use, can "boost neutralizing antibody levels 37-fold higher than pre-boost levels." Preliminary data on a 100-microgram dose, the same as the first two shots, showed an "approximately 83-fold" increase. Without a booster, the company's vaccine has been been found to be far less effective against omicron. Moderna