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 0.2% compared to the rolling 12 months ending in April. Outbound traffic was down 0.5% compared to 12 months ending in April.
Inbound traffic had been increasing, and outbound traffic had been moving down recently. The recent downturn in exports might be due to the strong dollar and weakness in China.
The 2nd graph is the monthly data (with a strong seasonal pattern for imports).
Imports were up 2% year-over-year in May; exports were down 5% year-over-year.
The labor issues are now resolved, and the distortions from the labor issues are behind us. This data suggests a slightly larger trade deficit with Asia in May.