THIS WEEK

MONDAY

WASHINGTON -- Commerce Department reports on retail sales for March; Commerce Department reports on business inventories for February; Treasury bill auction.

NEW YORK -- Citigroup releases first-quarter earnings.

TUESDAY

Income tax returns due.

SUNNYVALE, Calif. -- Yahoo releases first-quarter earnings.

WEDNESDAY

HARTFORD, Conn. -- United Technologies Corp. to issue first-quarter earnings.

THURSDAY

NEW YORK -- Conference Board reports its monthly Leading Economic Indicators Index.

WASHINGTON -- Labor Department reports on weekly jobless claims; Freddie Mac reports on mortgage rates.

NEW YORK -- American Express Co. releases first-quarter earnings.

FRIDAY

PEORIA, Ill. -- Caterpillar releases first-quarter earnings.

THE ASSOCIATED PRESS