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 down 0.7% in April compared to the rolling 12 months ending in March. Outbound traffic was down 1.4% compared to the rolling 12 months ending the previous month.
The 2nd graph is the monthly data (with a strong seasonal pattern for imports).
Because of the timing of the New Year, we would have expected traffic to decline in February without an impact from COVID-19, but bounce back in March and April.
In general imports both imports and exports have turned down recently - and will probably be negatively impacted by COVID-19 over the next several months.