Maersk Leads but Gemini Alliance Struggles on Container Reliability

Container shipping schedule reliability continues to deteriorate across the industry, with east-west trades averaging just 53.6% reliability in August and September according to Sea-Intelligence data. While Maersk emerged as the single most reliable carrier at 64.8%, its alliance partner Gemini Cooperation underperformed significantly at 68.4%, dropping 9.4 percentage points month-on-month. MSC narrowly edged out Gemini with 68.9% reliability, demonstrating the divergence between individual carrier performance and alliance-level results.

The performance gap exposes structural challenges within the Gemini alliance's operational consistency. While Gemini maintained impressive reliability on select European routes (Asia-North Europe at 92.9%), it was severely hampered by backhaul disruptions from North America and Europe to Asia, largely attributed to typhoon-induced port congestion in Far East facilities. This suggests that even well-resourced carriers struggle with regional supply chain shocks that ripple across their global networks.

For supply chain professionals, the data underscores a critical market reality: advertised service level targets bear little resemblance to actual performance. Industry-wide reliability has declined 14.8 percentage points from May's peak of 64.5%, and average vessel delays reached 6.65 days, the second-highest September figure on record. These metrics indicate that shippers must build significantly expanded buffers into their planning and consider diversifying carrier relationships to mitigate concentrated reliability risk.