S&P Futures are trading lower this morning. Futures were ticker higher until the CEO of Moderna warned that the existing vaccines will likely be less effective against the Omicron variant. The market will be paying attention to testimony from Fed Chair Jerome Powell today Also in focus Tuesday will be data on house prices and consumer confidence, set to be released at 9 a.m. ET and 10 a.m., respectively. Earnings from Salesforce.com and Hewlett Packard Enterprise are due after markets close.