Sea-Intelligence has published issue 178 of the Global Liner Performance (GLP) report, with schedule reliability figures up to and including May 2026. As the 120-page report is quite comprehensive and covers schedule reliability across 34 different trade lanes and 60+ carriers, this press release will only cover highlights from the full report.

Schedule reliability has been improving M/M since March 2026, with the latest increase of 2.5 percentage points taking the May 2026 figure to 64.7%; the highest in 2026. On a Y/Y level, schedule reliability was lower by ‑1.2 percentage points. The average delay for LATE vessel arrivals deteriorated, increasing by 0.04 days M/M and by 0.88 days Y/Y to 5.52 days.

Maersk was the most reliable top-13 carrier in May 2026 with schedule reliability of 78.2%, followed by Hapag-Lloyd with 76.0%, and MSC with 71.6%. Six carriers were in the 60‑70% range and three in the 50-60% range, with Wan Hai the least reliable in May 2026 with schedule reliability of 38.0%. Nine carriers recorded an M/M improvement in schedule reliability in May 2026, while eight of the 13 carriers recorded a Y/Y improvement.

In April/May 2026, Gemini Cooperation recorded 89.5% schedule reliability across ALL arrivals and 91.4% across TRADE arrivals, followed by MSC at 79.5% for ALL arrivals and 79.7% for TRADE arrivals. Premier Alliance recorded 53.4% for ALL arrivals and 54.0% across TRADE arrivals. For the "old" alliances, "ALL arrivals" remain equal to "TRADE arrivals," and Ocean Alliance scored 69.7%.

Traditionally, alliance scores were based on just the arrivals in destination regions, but as that metric was not available for the new alliances in February 2025, we introduced a new measure, based on all arrivals, including the origin region calls on the East/West trades. “All arrivals” is comparable to the February 2025 measure and “Trade arrivals” is comparable to the “old” alliances. Since “All Arrivals” was a temporary measure for comparability to February 2025, and since that datapoint is no longer visible in the chart, from the July 2026 issue of the GLP, we will revert to only publishing “Trade Arrivals”.

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All quotes can be attributed to: Alan Murphy, CEO, Sea-Intelligence.
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