Why Costco Wholesale Stock Lagged the Market Today

For all its size and power, Costco stands to take an economic hit from a worsening labor dispute.Costco Wholesale (COST 0.10%) stock didn't have one of its better trading sessions on Monday. Like its retail industry peers, it's staring into the face of a potentially damaging labor action, specifically a looming strike by dockworkers at ports located on the East and Gulf Coasts. Cautious investors avoided the stock, which sagged marginally in price while the S&P 500 index increased to close 0.4% higher.A few ...