United Airlines said that it was on track to lose $544 million on contracts in the futures market it used to hedge against rising fuel prices this quarter.

The plunge in UAL stock was started by a series of human and machine errors and raised questions about the struggles of some traditional media companies to adapt to the Internet age.

The plunge in UAL stock was started by a series of human and machine errors and raised questions about the struggles of some traditional media companies to adapt to the Internet age.

Wall Street’s computer scientists keep trying to find quicker ways to react to the news. All this can go horribly wrong, as United Airlines learned last week.

Shares of United Airlines lost nearly all their value when a false bankruptcy rumor swept financial markets.

Shares of United Airlines lost nearly all their value when a false rumor swept financial markets on Monday.

Shares of United Airlines lost nearly all their value when a false rumor swept financial markets on Monday.

Shares of United Airlines lost nearly all their value Monday morning when a false rumor swept financial markets that the struggling carrier had filed for bankruptcy protection.

The union representing pilots at United Airlines urged Glenn F. Tilton to resign, accusing him of steering the carrier down a path to poor customer service, employee morale and financial performance.

The union representing pilots at United Airlines urged Glenn F. Tilton to resign, accusing him of steering the carrier down a path to poor customer service, employee morale and financial performance.