The number of post offices being considered for possible closure to save money seems to be growing. The Postal Service faces a potential deficit of $7 billion this fiscal year and has been looking for ways to save, including buyouts, spending cuts and closing offices.

Investors balked at extending the market’s recent rally Friday despite an improved outlook from Intel Corp. Stocks closed mostly lower, as losses among health care stocks offset small gains in technology companies.

Household income in the United States is essentially stagnant, raising doubts about whether consumers already hurt by job losses can sustain an economic recovery.

Shares of online brokerage E-Trade Financial Corp. rose in heavy trading following the completion of a deal that lets its bondholders convert debt into equity.

The following stocks were among those that moved substantially or traded heavily Friday on the New York Stock Exchange: NYSE:

TUESDAY, Sept. 1 NEW YORK — The Institute for Supply Management releases its manufacturing index for August, 10 a.m. DETROIT — Major automakers report U.S. auto sales for August.

MONDAY, Aug. 31 LAS CRUCES, N.M. — Energy Secretary Steven Chu addresses New Mexico State University energy conference, “Re-Energizing America: Policy, Practice and Possibility for America’s Future.”

Intel Corp. raised its third-quarter revenue forecast above Wall Street’s expectations Friday, citing strong demand for its chips and giving another signal that business is improving for one of the world’s biggest technology companies.

Cyclacel Pharmaceuticals Inc. said Friday it could be delisted from Nasdaq because it does not comply with the $10 million minimum shareholder equity requirement.

U.S. stocks mostly slipped on Friday after a weak consumer sentiment report offset positive news from bellwethers Dell Inc and Intel Corp .