BY THE NUMBERS

Dow futures jumped roughly 350 points Tuesday, one day after the 30-stock average surged 646 points, or nearly 1.9%, as investors grew less worried about the new Covid omicron variant. The S&P 500 gained more than 1% and the Nasdaq, which has hit the skids of late, joined in the rally and advanced nearly 1%. Wall Street, coming off a losing week last week, has recently been volatile, evidenced by the Dow's up and downs since its 905-point plunge on Nov. 26. (CNBC)

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British drugmaker GlaxoSmithKline (GSK) said Tuesday that new data from early stage studies showed its antibody-based Covid therapy was effective against all 37 identified mutations of omicron. Last week, other preclinical data showed the treatment, developed by GSK and U.S.-based Vir Biotechnology (VIR) worked on key mutations of omicron. (Reuters)