Also

* Wal-Mart Stores Inc. workers at a store in a suburb of Montreal will vote next month in a secret ballot on whether to join a union.

* Defense contractor Lockheed Martin Corp. was hit by a strike of about 3,000 employees at a Georgia plant over a proposal to reduce healthcare benefits for retirees.

* 99 Cents Only Stores said it might have to restate its financial results because of operating lease and depreciation issues. The potential adjustments are noncash and would have no significant effect on the company’s cash flow, revenue or same-store sales.