On the impact of the trade war, from Port of Long Beach Executive Director Mario Cordero: “With peak season approaching, we’re expecting imports to continue to grow, but it’s clear exports are suffering under the weight of tariffs.” emphasis added
Container traffic gives us an idea about the volume of goods being exported and imported - and usually some hints about the trade report since LA area ports handle about 40% of the nation's container port traffic.
The following graphs are for inbound and outbound traffic at the ports of Los Angeles and Long Beach in TEUs (TEUs: 20-foot equivalent units or 20-foot-long cargo container).
To remove the strong seasonal component for inbound traffic, the first graph shows the rolling 12 month average.
On a rolling 12 month basis, inbound traffic was up 0.1% in April compared to the rolling 12 months ending in March. Outbound traffic was down 0.8% compared to the rolling 12 months ending the previous month.
The 2nd graph is the monthly data (with a strong seasonal pattern for imports).
In general imports have been increasing, and exports have mostly moved sideways over the last 8 years.