The ports of Los Angeles and Long Beach, which combined handle more than 40 percent of U.S. container trade, both reported double-digit monthly container import growth in April. … Import volumes in April were up 11.4 percent at the Port of Los Angeles and 11.9 percent at the Port of Long Beach. Total lifted TEUs were up 10.3 percent at Los Angeles and 9.7 percent at Long Beach.

The numbers also support the argument that Los Angeles and Long Beach are gaining at the expense of other West Coast gateways, including those in Canada and Mexico, because carriers are increasingly putting their biggest trans-Pacific vessels into Southern California services. The combined North American West Coast market share of Los Angeles and Long Beach was 61.4 percent, up from 59.6 percent in the first quarter
of 2013. The growth came at the expense of competitors to its north and south.

More at the JOC