Wall St week ahead: Covid-19 fears reappear as a threat to market

With little known about the new variant, longer term implications for U.S. assets were unclear.

NEW YORK: COVID-19 has resurfaced as a worry for investors and a potential driver of big market moves after a new variant triggered alarm, long after the threat had receded in Wall Street's eyes.

Worries about a new strain of the virus, named Omicron and classified by the World Health Organisation as a variant of concern, slammed markets worldwide and dealt the S&P 500 index its biggest one-day percentage loss in nine months. The moves came a day after the U.S. Thanksgiving holiday when thin volume likely exacerbated the moves. read more