Monday:

• At 10:00 AM ET, the ISM non-Manufacturing Index for December. The consensus is for a reading of 54.8, up from 53.9 in November. Note: Above 50 indicates expansion, below 50 contraction.

• Also at 10:00 AM, the Manufacturers' Shipments, Inventories and Orders (Factory Orders) for November. The consensus is for a 1.6% increase in orders.