CK Data & Intelligence
Data by port
Every dataset cites its original source and can be downloaded as CSV or JSON, with key figures, a full data table and a ready-made citation on its page.
Compare datasets →U.S. West Coast port volatility
How much each U.S. West Coast port’s monthly container count has swung over the latest 12 months, against its own record.
| Port | Latest (pts) | Median (pts) | Latest against the port’s own range: Calmer before |
|---|---|---|---|
| Los Angelesto Sep ’26 | 9.4 | 10.3since 1996 | 42% of windows |
| Long Beachto Aug ’26 | 8.1 | 10.1since 2005 | 27% of windows |
| San Pedro Bay (both)to Aug ’26 | 5.8 | 9.0since 2005 | 10% of windows |
| Oaklandto Sep ’26 | 9.7 | 8.0since 1999 | 73% of windows |
| Seattle–Tacoma (NWSA)to Sep ’26 | 15.5 | 11.9since 2016 | 91% of windows |
Volatility is the sample standard deviation of the latest 12 month-on-month percent changes in TEUs, in percentage points, not annualized; months without 12 consecutive changes behind them are skipped. The counts aren’t seasonally adjusted, so every window holds the same seasonal swing: compare a port with its own record more than with other ports. “Calmer before” is the share of the port’s earlier 12-month windows with lower volatility than the latest; the bar runs from its calmest window to its most volatile, with the median as a tick and the latest as a dot. Ports report on different schedules, so their latest months can differ.
CK estimate4 sources · as of October 9, 2026 – October 19, 2026 (varies by source); not recorded for 1 inputSources & methods
- Period covered
- Jan 1995 – Sep 2026
- Source figures as of
- October 9, 2026 – October 19, 2026 (varies by source); not recorded for 1 input
- Geography
- Port of Los Angeles, CA; Port of Long Beach, CA; Ports of Los Angeles and Long Beach (San Pedro Bay); Port of Oakland, CA; Ports of Seattle and Tacoma, WA
- Sector
- Transportation, Maritime Trade & Logistics · Maritime shipping
- Seasonal adjustment
- Not seasonally adjusted
- Transformations
- Rolling 12-month volatility of month-on-month changes, calculated by CK Economics. Los Angeles plus Long Beach, summed by CK Economics
- Revisions
- Recalculated on each input’s latest figures.
- Data status
- Current
130 datasets
Major world ports
24 datasetsShips calling each day and the cargo they load and unload at twelve major world ports, from IMF PortWatch’s ship tracking: Asia’s largest first, then Europe and the Americas.
Shanghai
Singapore
Ningbo
Busan
Hong Kong
Jebel Ali
Port Klang
Rotterdam
Antwerp
Hamburg
New York and New Jersey
Santos
Port of Los Angeles
8 datasetsThe busiest container port in the US: its volumes, the loaded import and export split, and the San Pedro Bay series it shares with Long Beach.
Census trade by partner and product: Los Angeles, CA
Loaded imports and exports
San Pedro Bay, shared with Long Beach
Port of Long Beach
4 datasetsThe second-busiest US container port, next door to Los Angeles, and the San Pedro Bay series the two share.
Census trade by partner and product: Long Beach, CA
San Pedro Bay, shared with Los Angeles
Other U.S. West Coast ports
6 datasetsContainer volumes at the other major West Coast gateways, for comparison with San Pedro Bay.
Census trade by partner and product: Oakland, CA, Seattle, WA, Tacoma, WA
Container volume
Oakland’s loaded imports and exports
Wider context
91 datasetsSeries that bear on every port: shipping costs, diesel and supply-chain pressure.