Tech and AI-related stocks in the US suffered heavy losses on Thursday, triggering a ripple effect across global markets. New Zealand's Infratil, a major infrastructure investor, was particularly affected, with concerns over local data centre investments intensifying. The decline followed a sharp drop in tech shares, driven by growing worries about the sector's future. Infratil, which holds significant stakes in data centres, saw its value decline as investors grew wary of the sector's long-term prospects. The downturn spread beyond the US, impacting markets in New Zealand and other regions. Analysts noted that the fall reflected broader uncertainty about the sustainability of AI-driven growth. The situation highlights the interconnectedness of global financial markets, with New Zealand investors feeling the impact of US tech volatility. The market reaction underscores the growing caution among investors toward high-tech sectors amid regulatory and economic uncertainties.