The union representing U.S. dockworkers has 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.

Yet on top of the cost of storing goods for longer, retailers will have a hard time replenishing their inventory should the strike drag on, and as Gold pointed out, carriers are already announcing surcharges on shipped containers due to potential disruptions.

Dockworkers at dozens of U.S. ports are digging in for a massive pay increase, seeking to flex their power in a strike that aims to strangle the flow of trade across much of the country.“This is going down in history what we’re doing here,