Also ...

* Today, Commerce Department reports on November personal income and spending.

* Tuesday, Commerce Department reports on November factory orders for durable goods.

U.S. stock markets close at 10 a.m. and the bond market closes at 11 a.m. PST.

* Wednesday, U.S. financial markets closed for Christmas.

* Thursday, deadline set by United Airlines to reach agreement on additional labor savings before asking a Bankruptcy Court to nullify existing labor contracts.

ShopperTrak RCT releases first estimates of Christmas season sales at major retail chains.

* Friday, Commerce Department reports on November new-home sales.