What drove the record June throughput at Port of Los Angeles?

The port logged 1 million TEUs in June—its best month on record. This reflects strong underlying demand in the U.S. market, but also likely includes front-loading behavior by shippers seeking to avoid anticipated tariff increases or secure capacity ahead of uncertain trade conditions.

Why is visibility beyond July unclear despite strong June numbers?

According to Gene Seroka, the Port Director, companies are adapting to changing conditions in real-time. Tariff policy uncertainty and tensions in Iran are prompting shippers to abandon traditional routing patterns and make tactical decisions on a case-by-case basis, making aggregate demand forecasting extremely difficult.

How are geopolitical tensions affecting ocean shipping routes?

Iran tensions, combined with tariff threats, are causing shippers to reconsider which ports to use and which transit lanes to employ. This 'scrapping of tradition' suggests carriers and beneficial cargo owners are actively routing cargo away from predictable historical patterns to mitigate geopolitical and regulatory risks.

What should supply chain teams do to prepare?

Build supply chain flexibility by diversifying carrier relationships, maintaining real-time visibility into geopolitical and trade policy changes, and stress-testing inventory and routing assumptions. Relying on historical port congestion patterns or seasonal forecasts may prove unreliable in the current environment.

Could this volatility lead to port congestion elsewhere?

Yes. If traditional trans-Pacific routing patterns fragment due to tariffs and geopolitical risks, alternate ports (e.g., Mexican ports, East Coast gateways) may experience unexpected congestion spikes, while the LA port could face demand swings that complicate labor scheduling and terminal capacity planning.

Trade Policy & Tariffs

High Impact

Tariffs and Iran tensions force LA port to abandon shipping traditions

Jul 17, 2026

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The signal

The Port of Los Angeles achieved record throughput in June with 1 million TEUs, signaling strong near-term demand amid global trade uncertainty. However, Port Director Gene Seroka indicated that visibility beyond July remains unclear as shippers actively reconfigure their ocean routing strategies in response to tariff threats and Middle East tensions. This signals a structural shift away from traditional routing patterns, driven by shippers seeking to mitigate tariff exposure and navigate geopolitical risks in real-time.

The divergence between record June performance and opaque forward visibility reflects the volatile operating environment facing supply chain managers. Traditional routing optimization and seasonal forecasting models are becoming less reliable when tariff policy and regional conflict can reshape trade flows overnight. Shippers are reportedly abandoning legacy port-calling patterns and vessel schedules, suggesting that carriers and beneficial cargo owners are making tactical decisions on a shipment-by-shipment basis rather than adhering to historical norms.

For supply chain professionals, this environment demands heightened agility in port selection, carrier negotiation, and inventory positioning. Organizations relying on predictable trans-Pacific routing and port congestion models may face unexpected delays or cost escalations. The need to maintain supply chain resilience through diversified routing options, real-time visibility platforms, and flexible logistics partnerships has become operationally critical rather than strategically aspirational.

#supply-chain-volatility

#teu-capacity

#shipping-routes

#trade-uncertainty

Frequently Asked Questions

What This Means for Your Supply Chain

Simulation Suggestion

this month

What if tariff implementation causes 30% of trans-Pacific imports to reroute to alternate gateways?

Model a scenario in which tariff threats prompt beneficial cargo owners to split inbound flows, routing 30% of traditional LA Port volumes to Port of Long Beach, Mexican Pacific ports, or East Coast alternatives. Simulate inventory positioning, transportation cost impacts, and service level changes across the network.

Run this scenario

Simulation Suggestion

this month

What if front-loaded June demand is followed by a July-September demand cliff as tariff uncertainty resolves?

Model a demand normalization scenario where record June volumes reverse sharply if tariff policy is resolved or clarified. Simulate the impact on port labor scheduling, terminal capacity utilization, carrier vessel schedules, and downstream warehouse staffing and inventory write-offs across retail and e-commerce networks.

Run this scenario

Simulation Suggestion

strategic

What if Iran tensions disrupt Suez Canal transits, extending Asia-to-LA lead times by 10-14 days?

Model a disruption scenario where geopolitical tension forces carriers to avoid the Suez Canal and route around Africa, adding 1-2 weeks to Asia-to-LA transit times. Simulate safety stock requirements, demand planning accuracy, and working capital impacts for retailers and e-commerce platforms dependent on trans-Pacific inventory.

Run this scenario

Go deeper:

Supply Chain Digital Twin: The 2026 Guide

How operators model end-to-end supply chains to see how tariffs, supplier shocks, and regulatory changes ripple across cost, service, risk, and time.

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The signal

Frequently Asked Questions

What This Means for Your Supply Chain

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