A port strike seems to be on the horizon, and Wall Street is quickly calculating possible winners and losers. Bargaining for a new six-year contract between dockworkers, represented by the International Longshoremen’s Association,

The union representing U.S. dockworkers signaled that 45,000 members will walk off the job at midnight, kicking off a massive strike likely to shut down ports across the East and Gulf coasts

An impending port strike along the East and Gulf coasts would force tens of thousands of dockworkers off the job, potentially crippling American supply chains.

The International Longshoremen’s Association has confirmed plans for a port strike on the U.S. East Coast and Gulf of Mexico starting Tuesday. The union, representing dock workers from Maine to Texas,