A disappointing forecast from iPhone maker Apple Inc. dragged shares of other handset makers lower Monday, even as a weak quarterly report from Texas Instruments Inc. weighed on the broader technology sector.

Shares in Research in Motion Ltd., the maker of the popular BlackBerry smart phones, rose modestly Monday after an analyst said concerns over competition with Apple Inc.'s iPhone are "overdone."

Among the sector activity stories for Monday, July 21, from AP Financial News:

BlackBerry maker Research In Motion Ltd <RIM.TO><RIMM.O> is charging ahead with international expansion plans and investments in new handsets and software to stay competitive, its co-chief executive said.

Neither rain nor controversy discouraged a hardy band of gadget lovers who lined up for up to 16 hours on a downtown street to become among the first in Canada to buy Apple Inc's <AAPL.O> iPhone 3G on Friday.

Apple's new iPhone made its hotly awaited debut on Friday, with buyers storming stores in Asia and queues forming in European cities.

As employers hand out electronic devices to their employees at a greater pace, there are growing concerns that workers eligible for overtime pay, known as non-exempt employees, could begin suing their employers for overtime hours earned while tapping on their devices during after-work hours.

Stocks ended mixed Monday, capping a dismal quarter and first half marked by rocketing oil prices and battered financials. The Dow is down 14 percent since the beginning of the year and ended the first half about 20 points from bear-market territory.

The Dow closed at its lowest level in nearly two years after a downgrade on brokerage stocks and a slew of weak earnings and economic reports.  Several Dow components and several financial stocks hit multiyear lows, with the biggest shock coming from GM, which fell to its lowest in more than 50 years.

The Dow dropped to its lowest level in nearly two years after a downgrade on brokerage stocks and a slew of weak earnings and economic reports.  Several Dow components and several financial stocks hit multiyear lows, with the biggest shock coming from GM, which fell to its lowest in more than 50 years.

The Dow dropped to its lowest level in nearly two years after a downgrade on brokerage stocks and a slew of weak earnings and economic reports.  Several Dow components and several financial stocks hit multiyear lows, with the biggest shock coming from GM, which fell to its lowest in more than 50 years.

Two of Wall Street's technology darlings that had been looked to as beacons to guide the sector out of hard times instead will be leading the market lower Thursday.

Stocks tumbled out of the gate Thursday after a downgrade on brokerage stocks and disappointing earnings from two tech giants.

Research in Motion reported a profit and sales that both were below analysts' estimates, and the company's shares dropped about 8 percent in extended trading.

Energy concerns weighed heavily on Wall Street on Tuesday. What follows are the day's video highlights.